SQL-query with ADO.NET

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- Previous
  - 1
    - date selection not working in sql Hi The following SQL statement returns what I would expect "select * from polls where ref = '" + ref + "' order by jobDate" This one always fails "select * from polls where ref = '" + ref + "' and jobdate = #" + CType(sdate, string) + "# order by jobDate" Anyone know why? We are using VB.Net & ADO to Jet Database Thanks in advance --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.752 / Virus Database: 503 - Release Date: 03/09/2004 Tag: SQL-query with ADO.NET Tag: 94964
  - 2
    - many-to-many relationships (m:n) Hi, is there anybody out there knowing about a good way (best practice) or ressource describing how to display and manage a many-to-many relationship on a WinForm? I have exactly the same situation reflected in the MS 'pubs' sample-db. There are authors and books. An author could have written many books and a book could have been written by many authors. The relationship is held in the titleauthor table. I'd like to have a WinForm where I can select a book and it shows me the corresponding authors. How to do that? Additionally I'd like to have the opportunity to add authors to a book while keeping track of the order attribute (reflected in the titleauthor.au_ord column). Any suggestions? Regards, Lorenz Tag: SQL-query with ADO.NET Tag: 94963
  - 3
    - help setting up factory design pattern I am attempting to set up a factory design pattern for my data access design. In my investigation, I have been unable to find anything in regards to the dbtypes for the different datatypes. ie SqlClient, OracleClient etc. Does anyone have any examples of this, or point me to a web site that I can look at. Thanks in advance Darren Tag: SQL-query with ADO.NET Tag: 94962
  - 4
    - MS Oracle Client - OCI throws "Specified module could not be found Hi, We are trying to connect oracle 9i database through windows services application using ADO.NET [MS Oracle Client]. When the service tries to connect oracle 9i database, OCI.DLL throws an exception as "The specified module could not be found". The same code is working good when we run as a windows application or web application. The issue is only when we call the same code from windows services. Environment Details: Windows 2003 stand-alone server Oracle 9i [ 9.2.0.1.0 ] Database Server/Client MS .NET v1.1 Any immediate help would be greatly appreciated. Thanks. Prabakaran.G Tag: SQL-query with ADO.NET Tag: 94953
  - 5
    - DataSet Foreign Key Constraint Error I have a dataset with a parent table and 3 child tables. The dataset is filled and manipulated on one particular web page. During the user interaction one of the child tables can have records inserted,edited, or deleted. Upon clicking save I call the Update method of my dataAdapter mapped to the child table in my db and pass the dataset childtable in as a parameter. I'm getting an inconsistent foreign key constraint error. The error is telling me that a certain child key value(1768) must exist in the parent table. The value I'm being given is the parent primary key of one of the records in my database. The strange thing is upon entry into the aspx page an entirely different parent record and related children records were loaded into the dataset. How am I getting this rogue child record in my dataset for an entirely different parent record than the one I'me inserting child records for? I thought I may be loading my dataset with more child rows than I wanted but my dataset should give the same foreign key constraint error if I try loading rogue child records without the parent record in the parent datatable. Anyone seen this type of bahavior before? I had a hunch that the auto generated SELECT statement appended to the INSERT statement of my dataadapter may be causing the issue so I got rid of it. Seems to have solved the problem, but I would like to know if this truly is the solution, or if I'm missing something else? Any suggestions on how to properly debug this error or alternate solutions are appreciated. Tag: SQL-query with ADO.NET Tag: 94952
  - 6
    - Connection Problem I suspect I am missing the obvious here but I don't see it. I am trying to establish a connection to an SQL Server from an ASP.NET page I have defined the subroutines shown below, I have myConn defined at the top of the page as: Friend myConn As SqlClient.SqlConnection and then when I try to execute the following code I get an error that "Object reference not set to an instance of an object" ------------------------------------------------------- CreateConnection() myConn.Open() --------------------------------------------------------------------- I must be missing something basic here? Wayne ================ SUB & FUNC ================== ' Create Connection Private Sub CreateConnection() Dim myConn As New SqlConnection(GetSQLConnectionString()) End Sub ' Returns database connection string Private Function GetSQLConnectionString() As String Return "Data Source = sql.myhost.com; Initial Catalog = wengert; User ID = myid; Password=xxxx" End Function Tag: SQL-query with ADO.NET Tag: 94951
  - 7
    - error handling when updating a datasource via a data adapter i'm updating a table using a data adapter and stored procedure as it's insert/update commands. in certain cases, i would like the stored procedure to throw an exception and fail -- or just return an error, and then i want to catch the exception at the .net application layer. how is the best way to handle this? i don't mind if the entire update fails, rather than just one of the updated rows in the dataset. i would just like to handle it simply. i wasn't successful with the docs on this one. much appreciated, matthew Tag: SQL-query with ADO.NET Tag: 94950
  - 8
    - SQL Server and MS VS 2003 ADO.Net I have downloaded SQL Server MSDE. I am trying to create a data adapter and a connection object. The server explorer shows the SQL Server with the pubs database loaded. When I drag the adapter onto the form the wizard starts. Thing is on the connections tab the fields are blank. Supposedly the database and server should be listed on the tab and recognised by my computer. I have tried the other adapters. Is the reason the this is so is because of a security issue? I have managed to get one of the data walkthroughs to work, so I am sure that the data in the database is there. Help! Thanks. -- Spencer Tag: SQL-query with ADO.NET Tag: 94948
  - 9
    - Array to Database Hi, I want to store a multi-dimensioned array to the database. For the application i am writing, it is not necessary to store this data in a row/column format. So in other words, i want to store it as 1 chunk of binary data. Is it possible to store a 2-dim array in a binary format in an image field (or some other field). If so, are there examples of how to do this anywhere? Additionally, how would i retrieve this data and store it back into a 2-dim array? Lastly, can I assume that I can pass the data to a stored proc in the same way that i would call an INSERT statement (w/ out using a stored proc)? Thank you for your help, Paul Tag: SQL-query with ADO.NET Tag: 94944
  - 10
    - Transforming a typed dataset Hello, I need to reorder a Typed DataSet in memory using an Xsl Transform. Most of the examples use stream which write to the hard disk or xml file. I want to do this in memory and then write the resulting Typed Dataset into a Session object which will be reused on multiple postbacks and then finally saved when editing is done. Get various problems depending on what objects I use, rather than go through each one I will post what I have and see if anyone can suggest where to go from here. Xsl is simple, reordering (this is done becuase onitemupdate of datagrid I delete element then add a new one. this is because there are different types of columns and the use="optional" in the xsd file didn't give me an extra method to remove by column row.MultipleSelect.Delete() Anyhow this is peripheral as I am already down the alley which I hope isn't blind. <?xml version="1.0" encoding="UTF-8" ?> <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0"> <xsl:output omit-xml-declaration="yes"/> <xsl:template match="/*"> <Test> <xsl:for-each select="/Test/Question"> <xsl:sort select="@id" order="ascending" data-type="number"/> <xsl:copy-of select="."/> </xsl:for-each> </Test> </xsl:template> </xsl:stylesheet> Method for reordering DataSet: try { XmlDataDocument xmlDoc = new XmlDataDocument(ds); XslTransform xslTran = new XslTransform(); xslTran.Load(Server.MapPath("QuestionSort.xslt")); System.IO.MemoryStream s = new System.IO.MemoryStream(); System.Xml.XmlTextWriter w = new XmlTextWriter( s, System.Text.Encoding.Default ); xslTran.Transform(xmlDoc, (XsltArgumentList)null,w,(XmlResolver)null); s.Position = 0; //reset position of the in-memory stream. StreamReader r = new StreamReader(s); Test dsnew = new Test(); dsnew.ReadXml( r.ReadToEnd() ); //this method saves to session object setDataSet(SessionTestName, dsnew); } catch (Exception ex) { ex = ex; } Thanks, matt Tag: SQL-query with ADO.NET Tag: 94943
  - 11
    - Binding a combobox to a related DataTable Hi all, I have a DataSet with 2 related DataTables. Here's a simplified schema: Member [MemberID(PK), FirstName, LastName, FacultyID(FK)] Faculty [FacultyID(PK), Name] I have a 1:n DataRelation between those tables named 'Faculty_Member': Faculty(1) ---> (n)Member Now the problem: I have a WinForm for editing the Members. Also important is that I'm using a DataView on the Member-table. I'd like to have a ComboBox for choosing the Faculty a Member belongs to. I don't know how to bind the combobox so it will display Faculty.Name, use Faculty.FacultyID as value and then propagate the changes made into the Member.FacultyID. Also when the CurrencyManager of the DataView changes its position I want the combobox to display the Faculty of that member. How do I get this to work? Can I use the DataRelation at all for that kind of purpose or do I have to populate the combobox manually? I'd be glad about any suggestions. Regards, Lorenz Tag: SQL-query with ADO.NET Tag: 94940
  - 12
    - ¿Se puede ejecutar scripts con C# al igual que podía con VBScript? ¿Se puede ejecutar scripts con C# al igual que podía con VBScript? Con VBScript escribo codigo en un archivo .vbs o .vbe y lo ejecuto, ¿como puedo hacer esto con C#, pues hago un .cs pero no se como ejecutarlo? Otra consulta: con Sqlserver 2000, puedo ejecutar trabajos con ActiveX, con VBScript y Javascript, ¿puedo hacer lo mismo con C#, es decir ejecutar scripts hechos en C#, con trabajos de Sqlserver 2000? Quiero automatizar ciertos procesos entre bases de Sqlserver 2000 usando scripts en C# y no se como hacerlo.. gracias, saludos.... Tag: SQL-query with ADO.NET Tag: 94935
  - 13
    - INSERT statement fails in Datagrid Hi I have hardcoded method to populate (Select), delete and update a database table through a datagrid, these 3 operations work, but all inserts fail. I have noted that when i add a row to the datagrid (insert), all columns have a defult value of (null) assigned to them prior to the insert. Once i have added my data, the insert still fails - even if i assign the next number in sequence to the primary key field. The error generated is a system error. I have the following line of code to handle the primary key in each operation cmd.Parameters["PrimaryKeyField"].SourceVersion = DataRowversion.Original Any suggestions Thanks Tag: SQL-query with ADO.NET Tag: 94933
  - 14
    - Updating Database I need help. I am trying to figure out the best way to uodate a database with information. I am gathering my information from text fields on a form and I just want to insert them into the database that I have. I tried builing the SQL string and then adding it to a command object and then executing a non query but .NET does not seem to like this approach. I have been reviewing the various VB .NET manuals and they seem to want me to fill a dataset. Can this be done without the dataset? Would I be better off just sticking with regular ADO for this kind of operation? I was trying something like the following and getting errors: Dim cn As OdbcConnection cn = New OdbcConnection("dsn=CMI;uid=;pwd=;") strSQL = "INSERT INTO Customer _(FirstName,LastName,Address,City,Province,PostalCode,Email)" strSQL += " VALUES ('" strSQL += "'" & Replace(txtFirstName.Text, "'", "''") & "'," strSQL += "'" & Replace(txtLastName.Text, "'", "''") & "'," strSQL += "'" & Replace(txtAddress.Text, "'", "''") & "'," strSQL += "'" & Replace(txtCity.Text, "'", "''") & "'," strSQL += "'" & Replace(txtProvince.Text, "'", "''") & "'," strSQL += "'" & Replace(txtPostal.Text, "'", "''") & "'," strSQL += "'" & Replace(txtEmail.Text, "'", "''") & "')" cn.Open() Dim cmdInsertCustomer As New OdbcCommand(strSQL, cn) cmdInsertCustomer.ExecuteNonQuery() cn.Close() Can anyone suggest a way I could accomplish what I need to do here. Many thanks. Tag: SQL-query with ADO.NET Tag: 94930
  - 15
    - Copy table I have a dataset which contains a table which holds 4 columns. I want to copy column 2 and 3 into a new table with their contents. How ? Tag: SQL-query with ADO.NET Tag: 94926
  - 16
    - Dataset and typed datasets Hi, is there a way to cast a normal dataset to a typed dataset? I tried using the directcast but that didn't seem to work. Thx Tag: SQL-query with ADO.NET Tag: 94922
  - 17
    - Oracle Connection Pooling Problem (Type your message here) I am using Oracle Data Provider ( System.Data.OracleClient) to connect to Oracle Database 8.1.7. When I set connection pooling to true in my connection string, sometimes, My application can not open connection to database. But when I set connection pooling to false, then everything works fine. It looks like that something is going wrong with connection pooling. -------------------------------- From: Basharat Ali ----------------------- Posted by a user from .NET 247 (http://www.dotnet247.com/) <Id>OUNLxeOji0iVMYBPJLFE/w==</Id> Tag: SQL-query with ADO.NET Tag: 94920
  - 18
    - sqldatareader compare to server side read only cursor in ado Hi, SqlDataReader must be connected to the database in order to bring data. this is like server side cursor read only in ado. the point is that in the SQL Profiler, when my code is running over the records in ado recordset with server side cursor, i see SQL activity for each move in the record. in SqlDataReader i don't see the same activity in the profiler for each record. can someone explane why is the difference and is the DataReader really a server side cursor? TIA, z. Tag: SQL-query with ADO.NET Tag: 94917
  - 19
    - Ado.Net can't create Adapter ? I create a table in SQL 2000 with 100 columns, want to use SqlAdapter or OleDbAdapter access it, but I can't create Insert,Delete,Update command, why? How to do it? thanks! -----> create table kjcg ( itemid numeric identity, item_cglb nvarchar(1) not null, item_32 nchar(1) not null, item_140 nchar(1) not null, item_110 nchar(1) not null, item_64 nvarchar(3) not null, item_304 nchar(1) not null, item_47 nchar(2) not null, item_305 nchar(1) not null, item_46 nchar(2) not null, uid int not null, item_21 nchar(1) not null, item_163 nchar(1) not null, item_200 nvarchar(15) not null, item_51 nchar(1) not null, item_300 nchar(1) null, item_125 nvarchar(15) null, item_2 nchar(1) not null, item_126 nvarchar(50) null, item_62 nchar(1) not null, item_15 nvarchar(10) not null, stateid int not null, item_9 nvarchar(140) null, item_41_3 nchar(2) not null, item_12 nvarchar(12) not null, item_16 nchar(1) not null, item_12_1 nvarchar(12) not null, item_63 nvarchar(3) not null, item_33 nchar(1) not null, item_201 nchar(1) not null, item_124_1 nvarchar(15) null, item_123 nchar(1) not null, item_15_1 nvarchar(10) not null, item_210 nchar(1) not null, item_1 nchar(1) not null, item_dqdm nvarchar(3) not null, item_4 nvarchar(10) not null, item_share bit not null, item_year int not null, item_upload bit not null, item_120 nvarchar(20) null, item_121 datetime not null, item_125_1 nvarchar(7) null, item_127 nvarchar(30) null, item_128 nvarchar(80) null, item_13 text null, item_13_1 text null, item_13_2 text null, item_13_3 text null, item_130 nvarchar(80) null, item_131 nvarchar(1) null, item_133 text null, item_32_1 nvarchar(10) null, item_14 nvarchar(200) null, item_141 money not null, item_142 money not null, item_142_1 money not null, item_142_2 money not null, item_142_3 money not null, item_143 money not null, item_144 money not null, item_145 money not null, item_148 money not null, item_149 money not null, item_150 money not null, item_151 money not null, item_152 money not null, item_153 money not null, item_154 money not null, item_160 nvarchar(30) null, item_161 nvarchar(10) null, item_162 money not null, item_22 nvarchar(30) null, item_3 nvarchar(140) null, item_301 nvarchar(80) null, item_302 nvarchar(14) null, item_303 text null, item_306 nvarchar(14) null, item_34 nvarchar(14) null, item_37 nvarchar(100) null, item_38 nvarchar(6) null, item_39 nvarchar(30) null, item_40 nvarchar(30) null, item_41 nvarchar(20) null, item_41_1 nvarchar(20) null, item_41_2 nvarchar(30) null, item_420 nvarchar(20) null, item_45 int not null, item_52 nvarchar(80) null, item_53 nvarchar(12) null, item_56 nvarchar(12) null, item_60 nvarchar(100) null, item_61 nvarchar(80) null, item_8 nvarchar(22) null, item_sjdc nvarchar(1) null, item_sjdr nvarchar(1) null, item_xh money not null, item_243 money not null, item_244 money not null, item_51_1 nvarchar(1) null, item_51_2 money not null, item_51_3 money not null, item_151_1 money not null, item_152_1 money not null, constraint PK_KJCG primary key (itemid) ) go Tag: SQL-query with ADO.NET Tag: 94905
  - 20
    - database path and dataadapters Hello, I connect to an access database through the ui oledbdataadapters. This is fine becuase the wizard prompts for a file location. Puttig my page on a server, I have run into a few diffilculties. The page still asks for c:\database\database.mdb. I have changed all the other events such as submit/delete etc to server.mappath("/database/database.mdb"). How then do i change that in the dataadapters? Tag: SQL-query with ADO.NET Tag: 94904
  - 21
    - How to execute a Transform SQL Query? I try to use a data adapter to fill a dataset with a transform sql query from ms access database. The query string works at ms access's query area but when I run the asp.net application, this error occures : "There is a syntax error near TRANSFORM ..." (error is in Turkish language so maybe this is not the exact translation). Isn't it possible to run TRANSFORM queries at ADO.Net? My querystring is : strQuery= "TRANSFORM iif(Count(records.isPaid) is null, 0,Count(records.isPaid)) AS PaymentCount" strQuery &= " SELECT records.paymentGroupID, records.explanation, Count(records.paymentGroupID) AS TotalPaymentCount, MAX(paymentDate) AS LastPaymentDate" strQuery &= " FROM(records)" strQuery &= " WHERE(records.paymentGroupID <> 0)" strQuery &= " GROUP BY records.paymentGroupID, records.explanation" strQuery &= " PIVOT records.isPaid;" Tag: SQL-query with ADO.NET Tag: 94903
  - 22
    - Error: Can't create child list I have a master table named keywwordsets and two child tables keywords and searchphrase. I created relations in the xsd file: ID to KeywordSetID in both cases. In the underlying Access database these same relationships are also defined. The KeywordSet table is bound to 3 textboxes and a checkbox. The child tables are bound to grids. The datasources are the dataset dsWKS1 and the datamembers are the relations KeywordSets.KeywordSetsKeywords KeywordSets.KeywordSetsSearchPhrase I tried several times to make a datamember that didn't start with the KeywordSets table (somehow this seems wrong to me) but the compiler rejected all my attempts. When I try to open frmFullWord I get the following error system.argumentexception cannot create a child list for field KeywordSetsKeyword system.windows.forms.bindingcontext.ensurelistmanager system.windows.forms.bindingcontext.get_item frmFullWord_Load line 679 The line is cmK = CType(BindingContext(dsWKS1, "KeywordSets.KeywordSetsKeyword"), CurrencyManager) in the snippet Try cm = CType(BindingContext(dsWKS1, "KeyWordSets"), CurrencyManager) AddHandler cm.ItemChanged, AddressOf cm_ItemChanged AddHandler cm.PositionChanged, AddressOf cm_PositionChanged AddHandler daWKS.RowUpdated, AddressOf OnRowUpDated cmK = CType(BindingContext(dsWKS1, "KeywordSets.KeywordSetsKeyword"), CurrencyManager) cmSP = CType(BindingContext(dsWKS1, "KeywordSets.KeywordSetsSearchPhrase"), CurrencyManager) daWKS.Fill(dsWKS1, "KeywordSets") daWK.Fill(dsWKS1, "Keywords") daWSP.Fill(dsWKS1, "SearchPhrase") Can somebody please help me solve this error? Thanks. Dennis Tag: SQL-query with ADO.NET Tag: 94901
  - 23
    - A good site to learn asp.ent, ado.net and access databases? hello, What is a good site to learn asp.net, ado.net, and access databases? TIA Aaron Tag: SQL-query with ADO.NET Tag: 94895
  - 24
    - Advice on ORaacle Data Provider. What would be the best provider to support the Lobs's (clob in particular) data type. I'm aware that the OLEDB provider doesn't support the data type. My choices then are ODP.net provided by Oracle and the Oracle Client provider by Microsoft. Using a Data Access Layer that uses both an OLEDB and SQL Client providers. Please advise on the better choice for Oracle 9i support. Thanks you. Tag: SQL-query with ADO.NET Tag: 94894
  - 25
    - dataset.writexml and diffgrams, not writing well formed xml Hello, I am using vb.net and trying to write a local copy of a strongly typed dataset as a diffgram when the user is offline, so that when they connect to the server again their changes can be sent back. I am writing the diffgram using: dataset.writexml(filename,xmlwritemode.diffgram). If I load the original data from the server, then write it as a diffgram, then exit, then run the program again (this time offline) and load the diffgram, all works fine. However, if I then write the diffgram again, from the same dataset but this time with the local copy of the data (which has just been loaded from the diffgram), then exit, then run the program again and try and load the diffgram I get an xmlexception with errorcode "Xml_badnamechar" and the message "The ':' character, hexadecimal value 0x3A, cannot be included in a name. Line 9983, position 49." This is presumably because one of my field names includes a ':' (which I now suspect may have been a mistake!). But why does it not cause a problem the first time round, and is there anyway of making writexml encode the offending characters? I would be very grateful for any help, Edward Murray Tag: SQL-query with ADO.NET Tag: 94892
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  - 1
    - Problem with DataView.Add() : the new item isn't shown/focused in Hi, I have a real serious problem I can't figure out myself. Here's the pretty plain scenario: I have a DataSet with one table. I created a DataView on that table. I have a Listbox bound to the DataView to select items to display and edit in a couple of TextBoxes. So far everything is fine. Now I'd like to add a button that allows the user to add an item to the list. In the event handler of the button click I call the Add()-method of the DataView. Unfortunately nothing happens to the UI visually. The selected item in the list stays unchanged. I can select the newly added 'empty' item manually at the bottom of the list though. But the TextBoxes still show all the details of the last selected 'real' item. When I press the add-button I would like to have the newly added item (row) selected in the ListBox automatically and all the TextBoxes blanked out. That's exactly the result that I got when I dropped the DataView and bound all controls to the DataTable of the DataSet directly. I just don't understand it. But I need to use a DataView so I will be able to filter the data that will be displayed. Oh, I might mention that there is NO RowFilter set on the DataView (yet) that might prevent the newly added row from showing. Can somebody please help me?! I would really appreciate it. PS: I also already tried to use the Add()-method of the underlying CurrencyManager. It's still the same :-( Best regards, Lorenz Tag: SQL-query with ADO.NET Tag: 94890
  - 2
    - Tracking Down Source of Constraint Exceptions I have a dataSet that loads in Xml Data that could be created externally. It is using the DataSet.ReadXML command. Constraint errors can occur as a result of the data being passed. When a Constraint exception occurs is there any way of getting more information as to which table, row within the data set is causing the problem or which line of the XmlFile being read is causing it to occur as opposed to just sorting through The xml file to find the cause??? Tag: SQL-query with ADO.NET Tag: 94889
  - 3
    - Typed datasets & sorting with parent-child data... I have a two-table typed dataset. For the sake of argument, the tables are "tbl_Parent" and "tbl_Child" (no, these are the real names). What I want to do is show a sorted list of all the parents & within each parent, a sorted listed of the children. However I'm not having much success sorting the internal list... For example, I have an ASP.NET Repeater that I can bind to the tbl_Parents table to... but to sort it, I used a DataView. Then, with in the ItemDataBound in that repeater, I'm grabbing the specific DataItem (in this case, a tbl_ParentRow) and getting the child rows... but I can't sort the children. I'm sure this is possible, I'm just not approaching it the right way. Ideas? -AC Tag: SQL-query with ADO.NET Tag: 94887
  - 4
    - Using DataSet Data from another class How can I bind a datatable to a datagrid in another form Tag: SQL-query with ADO.NET Tag: 94882
  - 5
    - Apostrophe in SQL string Hi, in my application I add personal information about customers to a database by sending a SQL string. Now, sometimes there are customers with names that contain an apostrophe (like D'Artienne, etc.). Now, when I create a SQL string with such an apostrophe it gets malformatted (like: "insert into table1 (Firstname) values ('D'Artienne')" ). So, is there any way to insert a name that contains an apostrophe into a table by SQL? Thanks a lot peter Tag: SQL-query with ADO.NET Tag: 94880
  - 6
    - How to access individual table column data? Say I have a table object that contains several columns, and the first column is the column I'm intested in, and it contains numeric values. I'd like to call a function and pass in those column values, like this: (Calling code) MyFunction(table.columndata(0)) (function definition) MyFunction(col as arrayofint?) This is pseudo code to illustrate my point -- but does anyone know if this can be done, and what the syntax would look like please? TIA, -dnw. Tag: SQL-query with ADO.NET Tag: 94876
  - 7
    - AllowSorting in datagrid Hi, when I set AllowSorting to true in datagrid, when user sorted a column, does this raise an event? if yes, how can I catch it? Thanks in advance. Tag: SQL-query with ADO.NET Tag: 94852
  - 8
    - Exceptions & Open Connections Hi, quick question.. If I have a try/catch block like this, which I use all the time Try conn.Open() somevar =3D CStr(cmd.ExecuteScalar()) Catch ex As Exception Throw Finally conn.Close() End Try I throw the exception again because this is within my own object, and I = am handling the exception on the presentation level (where it will be = shown to the user). My question is, will the Finally block still be = called?, or should I put a conn.Close before I throw the exception again = to ensure that it will be closed. This is an asp.net application if it = matters. Thanks, --Michael Tag: SQL-query with ADO.NET Tag: 94850
  - 9
    - Informix Connection Anyone out there connect to Informix using the IBM .NET data provider? None of the connection strings that I've tried work and I just need an example. Thanks. Todd Tag: SQL-query with ADO.NET Tag: 94849
  - 10
    - Best practice to update rows in other tables? Hi, I'm relatively new to ADO.NET, so here is my question: What is the best way to get the some data from various tables and write it to other table? Say, I want to show some info on the winform from the table1, table2 and table3. What's the simplest way to write these infos to the table "table4"? Thank you! Don Tag: SQL-query with ADO.NET Tag: 94848
  - 11
    - Creating a dataset from an Excel File I am having trouble with getting all data back in a dataset from the excel spread sheet. Each column is named, however I am finding if the first value under the named column is not populated the rest of the values are ignored within that column. I would like to know if this is a bug or a problem with my approach. The code that is generating the dataset is as follows: Dim ds As DataSet Dim myCommand As OleDbDataAdapter Dim myConnection As OleDbConnection myConnection = New OleDb.OleDbConnection( _ "provider=Microsoft.Jet.OLEDB.4.0; " & _ "data source=" & FileLocationTextBox.Text & _ "; Extended Properties=Excel 8.0;") Dim row As DataRow ' Select the data from header sheet of the workbook. myCommand = New OleDbDataAdapter( _ "select * from [" & "Sheet1" & "$]", myConnection) ds = New DataSet myCommand.Fill(ds) DataGrid1.DataSource = ds Tag: SQL-query with ADO.NET Tag: 94844
  - 12
    - oledb version problem in connection string vb.net I have a program where i connect to an access database and get some information out of it. I'm using the oledb.3.51 version, my computer doesn't seem to have the 4.0 version, but the computer that is trying to run it only have the 4.0 version. So as you will see with the code below, i first try to open the 4.0 version... if that doesn't work, do the 3.51 version. When i run the program from my computer... the 4.0 fails and it goes to the 3.51 and it works fine. On his computer NEITHER version works. Is there anyway to either include my oledb version in the program, OR get the version of oledb on the computer running that program.. and use that in the connection string? Thanks! Chris Thunell cthunell@pierceassociates.com Code (Please excuse the numerous rem out statements... i've been trying all kinds of combinations): Dim myprovider As String Dim myAccessConn As String 'myAccessConn = "Jet OLEDB:Registry Path=;User ID=Admin;Jet OLEDB:Database Password=;Provider='Microsoft.Jet.OLEDB.3.51';Persist Security Info=False;Jet OLEDB:System database=;Jet OLEDB:Global Partial Bulk Ops=2;Mode=Share Deny None;Extended Properties=';COUNTRY=0;CP=1252;LANGID=0x0409';Data Source='" 'myAccessConn = "Jet OLEDB:Registry Path=;User ID=Admin;Jet OLEDB:Database Password=;Provider='Microsoft.Jet.OLEDB.4.0';Persist Security Info=False;Jet OLEDB:System database=;Jet OLEDB:Global Partial Bulk Ops=2;Mode=Share Deny None;Extended Properties=';COUNTRY=0;CP=1252;LANGID=0x0409';Data Source='" myAccessConn = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source='" myAccessConn = myAccessConn & Trim(lblFileLocation.Text) myAccessConn = myAccessConn & "'" Me.OleDbConnection1.ConnectionString = myAccessConn 'open the database Try Me.OleDbDataAdapter1.Fill(Me.DataSet11.BILL_OF_MATERIALS) Catch ex As Exception MessageBox.Show("4.0 didn't work - Trying 3.51") myAccessConn = "" 'myAccessConn = "Jet OLEDB:Registry Path=;User ID=Admin;Jet OLEDB:Database Password=;Provider='Microsoft.Jet.OLEDB.3.51';Persist Security Info=False;Jet OLEDB:System database=;Jet OLEDB:Global Partial Bulk Ops=2;Mode=Share Deny None;Extended Properties=';COUNTRY=0;CP=1252;LANGID=0x0409';Data Source='" myAccessConn = "Provider=Microsoft.Jet.OLEDB.3.51;Data Source='" myAccessConn = myAccessConn & Trim(lblFileLocation.Text) myAccessConn = myAccessConn & "'" Me.OleDbConnection1.ConnectionString = myAccessConn Me.OleDbDataAdapter1.Fill(Me.DataSet11.BILL_OF_MATERIALS) End Try Tag: SQL-query with ADO.NET Tag: 94843
  - 13
    - Best practice for inserting new DataRows with lots of 'not null'-columns Hi again, I'm pretty new to Winforms & DataBinding and I'm currently running into a lot of issues. Sorry if this has been explained before. I have a DataSet containing a table 'Member' that holds a lot of columns with info about members. Most of these columns are declared to be 'not null' in the DB. My WinForm for displaying members consists of a Listbox showing basic info (full name) of a member, and a Textbox for each column showing the details of the currently selected member. Ok, pretty much standard. I'd like to have a button 'insert new member'. When it is pressed I'd like to have a new (empty) entry in my Listbox and the detail-Textboxes blanked out. I tried it the way as it's propagated in many tutorials and books I found: * use the NewRow()-method of the Member-table * add it to the Member-table But when I try to add it all the 'NoNullAllowedException's are fired - ok that's what they are there for ;-) I'm looking for a best practice for this one - since it is so standard there must be someone with a good solution. I'd like to avoid creating a seperate 'create new member dialog' that duplicates all the fields on the other form, so i cann collect data before adding the new row... Any suggestions greatly appreciated, Lorenz Tag: SQL-query with ADO.NET Tag: 94837
  - 14
    - Update db with multiple dataset changes Datasets are great because you can manipulate the table data they contain in a disconnected state, right? Then simply call the Update method on the adapter that created the contained table to write changes back. But the controls I use to effect these data manipulations launch repeated postbacks. I'm saving the dataset in ViewState and reloading on PostBack, but the original DataAdapter is long gone by the time I'm ready to write the multiple changes back. What am I missing here? Sure, I can get around this by immediately writing each change back to the db and refilling the dataset on postback, but that kind of kills the spirit of the disconnected dataset. Tag: SQL-query with ADO.NET Tag: 94833
  - 15
    - Issue binding a DateTimePicker to a DataView Hi, when I'm trying to bind a DateTimePicker to a DataView I receive a System.Exception when the form loads. I don't get an error when binding it to a DataSet.Table that is representing exactly the same data. The error-message is in German saying: "DataBinding konnte keine Zeile in der Liste finden, die für alle Bindungen verwendet werden kann." I'll try to translate that: "DataBinding wasn't able to find a row in the list, which could be used for all bindungs." Any ideas? Thanks and regards, Lorenz Tag: SQL-query with ADO.NET Tag: 94829
  - 16
    - dso-support in .net-2.0 hallo, can anybody answer me following questions. 1. what is the name of the namespace which supports dso in the new beta-framework 2. is the data-access native .net or is it through the com-module 3. are classes available in framework 2.0 (beta) or do i have to install yukon thanx you a lot, Robin Saberi Tag: SQL-query with ADO.NET Tag: 94828
  - 17
    - IDataParameter (OUTPUT) not working without size! Hi there, (re-post since I never got any reply some weeks ago) IDataParameter does not have a size property (for string/varchar parameters), and without setting it it will not return a value! If I use SqlParameter (by temporarily casting the idataparameter to a sqlparameter) and set the size, all works well. My code is like so (sketch): IDbConnection [...] // create a sql connection, sql server for example IDbCommand cmd = con.CreateCommand(); cmd.CommandType = CommandType.StoredProcedure; cmd.CommandText = "aStoredProcedureName"; IDataParameter para = cmd.CreateParameter(); para.ParameterName = "@someOutParameter"; // (para as SqlParameter).Size = 20; // <--- works if included para.Direction = ParameterDirection.Output; cmd.ExecuteNonQuery; Console.Write( Convert.ToString( para.Value ); Now, this actually exists in a certain layer so this code does not convey the design, obviously. What is the solution to this? The IData/Db interfaces have worked fine so far as an abstraction layer, it does not seem logical that this would be unworkable. Help greatly appreciated!! /mawi Tag: SQL-query with ADO.NET Tag: 94827
  - 18
    - xsd.exe Typed DataSet generation Hello, I am loading a DataSet from an xml file and binding it to a hierarchical datagrid. I am trying to write some keys between the elements in my xml file into the xsd file. When I write the keys as elements it works and I get the public QuestionRow FindByorder(short order) { return ((MenuTitlesRow)(this.Rows.Find(new object[] {order}))); } however when I change these to attributes I loose my this method when running xsd.exe test.xsd /d I need my xml to be structured with attributes, is there anyway I can do this without have to transform the final output. There is curiously very little literature available on the web about this and what is very basic. Here is my xsd file.... <?xml version="1.0" standalone="yes"?> <xs:schema id="Test" targetNamespace="http://tempuri.org/test.xsd" elementFormDefault="qualified" attributeFormDefault="qualified" xmlns="http://tempuri.org/test.xsd" xmlns:mstns="http://tempuri.org/test.xsd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata"> <xs:element name="Test" msdata:IsDataSet="true"> <xs:complexType> <xs:choice maxOccurs="unbounded"> <xs:element name="Question"> <xs:complexType> <xs:sequence> <xs:element name="Option" minOccurs="0" maxOccurs="unbounded"> <xs:complexType> <xs:attribute name="parent" type="xs:short" /> <xs:attribute name="suborder" type="xs:short" /> <xs:attribute name="Text" type="xs:string" /> <xs:attribute name="Selected" type="xs:string" /> <xs:attribute name="Tooltip" type="xs:string" /> <xs:attribute name="Answer" type="xs:string" /> </xs:complexType> </xs:element> </xs:sequence> <xs:attribute name="id" type="xs:short" use="required" /> <xs:attribute name="Text" type="xs:string" use="required" /> <xs:attribute name="Type" type="xs:string" use="required" /> <xs:attribute name="Score" type="xs:string" use="required" /> <xs:attribute name="Mandatory" type="xs:string" use="required" /> <xs:attribute name="Tooltip" type="xs:string" use="required" /> <xs:attribute name="MultiSelect" type="xs:string" use="optional" /> <xs:attribute name="AllowNoSelection" type="xs:string" use="optional" /> <xs:attribute name="Multiline" type="xs:string" use="optional"/> <xs:attribute name="MaxLength" type="xs:string" use="optional" /> <xs:attribute name="MinLength" type="xs:string" use="optional" /> <xs:attribute name="InitialValue" type="xs:string" use="optional" /> <xs:attribute name="Validation" type="xs:string" use="optional" /> <xs:attribute name="Answer" type="xs:string" use="optional" /> </xs:complexType> <xs:key name="QuestionKey2" msdata:PrimaryKey="true"> <xs:selector xpath=".//mstns:Question" /> <xs:field xpath="mstns:id" /> </xs:key> <xs:keyref name="QuestionOption" refer="QuestionKey2" msdata:AcceptRejectRule="Cascade" msdata:DeleteRule="Cascade" msdata:UpdateRule="Cascade"> <xs:selector xpath=".//mstns:Option" /> <xs:field xpath="mstns:parent" /> </xs:keyref> <xs:key name="QuestionKey1" msdata:PrimaryKey="true"> <xs:selector xpath=".//mstns:Option" /> <xs:field xpath="mstns:parent" /> <xs:field xpath="mstns:suborder" /> </xs:key> </xs:element> </xs:choice> </xs:complexType> </xs:element> </xs:schema> I am trying to the following in the Update_click method of the datagrid.... Test dst = (Test)Session("Test"); short order = Convert.ToInt16(HierarGrid1.DataKeys[e.Item.ItemIndex]); Test.QuestionRow row = (Test.QuestionRow)dst.Question.FindByorder(order); also it appears DataKeys are empty... Thanks for any light shed on this area, Matt Tag: SQL-query with ADO.NET Tag: 94826
  - 19
    - Pool connections Hi, From time to time, I get an error message : "... all pooled connections were in use and ... " and I want to check how many connections are opened by my .NET application. How can I do this ? There is a tool in Sql Server ? My Ms Sql Server 2000 is on a remote computer (with Small Business Server 2000). Thanks for any advice or link Tag: SQL-query with ADO.NET Tag: 94822
  - 20
    - strange problem with access query and parameter ... hi, here is my code : szQry = "SELECT SubCategory_ID , " & _ " Loc1.Description as Descrizione " & _ " FROM C_SubCategories " & _ " LEFT OUTER JOIN D_Localizations Loc1 " & _ " ON ( C_SubCategories.Description_ID = Loc1.Localization_ID AND Loc1.Language_ID = @LanguageID ) " & _ " WHERE Category_ID = @CategoryID " & _ " AND StateActive = 1 " & _ " ORDER BY SubCatOrder " now i set the szqry to the command and i set the parameter .... if set first the @languageID paramater and then the @CategoryID then command returns always 0 record. but if i change the order and put first the @CategoryID and the @languageID all work great !!!! Why ? Does Access convert my query ? It's a problem of the outer join ???? very strange ....... any suggestion? tnx in advance andrew acc Tag: SQL-query with ADO.NET Tag: 94821
  - 21
    - Finding the Number of a New Row If I have a table ("tbl") in a dataset ("ds") with these three fields: pk - autoincrement, seed = -1, step = -1 fld0 fld1 and I add a new row, how can I find its row number for the default view? Here's some sample code: --------------- dim dr as datarow dim lngIndex as long dr = ds.tables("tbl").newrow dr("fld0") = 100 dr("fld1") = "Hello World" ds.tables("tbl").rows.add(dr) lngIndex = getNumberOfTheRowIJustAdded --------------- What do I replace "getNumberOfTheRowIJustAdded" with in order to get the new row number if I want it for a default view? Unfortunately, the find method returns the row itself, rather than its number. Since I can't see any way to determine the row number from that, it doesn't solve my problem. The only solution I see is to iterate through the data until I have a match. Also, am I correct in assuming that the number of the newly added row is the same as ds.tables("tbl").rows.count - 1 if I am not using a view? Thanks for any help. -- Greg ---- greg -at- spencersoft -dot- com Tag: SQL-query with ADO.NET Tag: 94817
  - 22
    - adding a new datarow to a datalist at runtime? Hi There, I am still resonably new to asp .net and I have a datalist which I am using to display search results, one of the columns has a status in it and in this particular case I am wanting to display an image on top of each row that returns a status of sold (reuturned from stored procedure,hidden from display). I had a play around with the function below and when I removed that tables from the datalist it seemed to be applying the changes correclty, I am just unsure about how I can add a new row dynamically bacsed on a literal value. Could someone help me out with somecode so I can get this working if possible? Joey !--- item template display <ItemTemplate> <tr bgcolor="d9d9d9" class="tabletext"> <td align="center" width="100"><%# DataBinder.Eval(Container.DataItem, "ListingID") %></td> <td align="center" width="60"><%# DataBinder.Eval(Container.DataItem, "Manufacturer") %></td> <td align="center" width="100"><%# DataBinder.Eval(Container.DataItem, "model") %></td> <td align="center" width="70"><%# DataBinder.Eval(Container.DataItem, "quantity") %></td> <td align="center" width="140"> <asp:HyperLink CssClass="tablelink" runat="server" Text="Specfications" NavigateUrl='<%# "ListingDetails.aspx?ListingID=" & DataBinder.Eval(Container.DataItem, "listingID")%>' /></td> </tr> </ItemTemplate> !-- event handler Public Sub ItemDataBoundEventHandler(ByVal sender As Object, ByVal e As DataListItemEventArgs) If e.Item.ItemType = ListItemType.Item Or e.Item.ItemType = ListItemType.AlternatingItem Then Dim drv As DataRowView = CType(e.Item.DataItem, DataRowView) Dim strStatus As String strStatus = CType(drv("status").Trim(), String) if strStatus = "Sold" Then e.Item.CssClass = "tabletext" e.Item.Font.Bold = True e.Item.BackColor = System.Drawing.Color.Aquamarine End If End If End Sub Tag: SQL-query with ADO.NET Tag: 94815
  - 23
    - Unexplained VersionNotFoundException I've run into a problem that has me pretty confused. I'm getting a VersionNotFoundException when trying to change the RowFilter property of a DataView. This happened in a large system that I'm working on, but I've been able to duplicate the behavior in a relatively small (80 lines) program, which I've included below (assuming it doesn't get munged by the upload software). There is some discussion of similar problems in previous posts here, but I didn't see a small reproducible case or any kind of resolution to the problem. Short explanation of program: I have a DataSet with two tables: Legislators and Authors. The Legislators table contains a list of all Legislators who can potentially be an author or coauthor on a bill. The Authors table contains a record for each Legislator who has signed onto the bill as an author or coauthor (the Authors table will contain information for one bill at a time). The DataSet enforces a relation: the LegislatorCode value in an Authors record must match a LegislatorCode that's in the Legislators table. I use a DataView to maintain a view of the Legislators table showing only those legislators who have not signed onto the bill. This all works on the initial load, as shown in the program below. However, if I then add an Authors record, the DataView isn't updated to reflect the change. That is, even though there now is an Authors record for a legislator, that legislator still shows up in the DataView. So, figuring I had to trigger a refresh of the DataView, I set RowFilter to string.Empty, and then set it back to what it was. I then get an exception "System.Data.VersionNotFoundException: There is no Original data to access." I have two questions: 1) Why doesn't the DataView update when I enter the new Authors record? 2) Why do I get this exception? Any help, especially a workaround or somebody pointing out where I'm doing something wrong, would be appreciated. Program follows. Jim -------------- .using System; .using System.Data; .namespace dvTest .{ . class Class1 . { . [STAThread] . static void Main(string[] args) . { . DataSet myds = new DataSet(); . // Create the tables . DataTable tblLegislators = new DataTable("Legislators"); . tblLegislators.Columns.Add("LegislatorCode"); . tblLegislators.Columns.Add("DisplayName"); . DataTable tblAuthors = new DataTable("Authors"); . tblAuthors.Columns.Add("BillNumber"); . tblAuthors.Columns.Add("LegislatorCode"); . // AuthorType: P = Primary author, C = Coauthor . tblAuthors.Columns.Add("AuthorType"); . // Add tables to dataset . myds.Tables.Add(tblLegislators); . myds.Tables.Add(tblAuthors); . // Add a relationship. . myds.Relations.Add(tblLegislators.Columns["LegislatorCode"], . tblAuthors.Columns["LegislatorCode"]); . // populate the legislators table . tblLegislators.Rows.Add(new object[] {"A0123", "Smith (A0123)"}); . tblLegislators.Rows.Add(new object[] {"A1234", "Jones (A1234)"}); . tblLegislators.Rows.Add(new object[] {"A5038", "Jackson (A5038)"}); . tblLegislators.Rows.Add(new object[] {"A0191", "Morton (A0191)"}); . // Populate the Authors table. . // LegislatorCode must be present in Legislators table . tblAuthors.Rows.Add(new object[] {"001", "A0123", "P"}); . tblAuthors.Rows.Add(new object[] {"001", "A5038", "C"}); . // Accept changes on the dataset. . myds.AcceptChanges(); . // dvLegislators is a dataview that contains legislators . // that do not have a record in tblAuthors. . DataView dvLegislators = new DataView( . tblLegislators, . "Count(Child.LegislatorCode)=0", . "DisplayName", . DataViewRowState.CurrentRows); . // Show contents . ShowLegislators(dvLegislators); . // Add another coauthor . Console.WriteLine("Add Legislator 0191 as a coauthor"); . tblAuthors.Rows.Add(new object[] {"001", "A0191", "C"}); . // Show contents -- why is 0191 still in this DataView? . ShowLegislators(dvLegislators); . // Re-filter the DataView . dvLegislators.RowFilter = ""; . try . { . // Why does this throw an exception? . dvLegislators.RowFilter = "Count(Child.LegislatorCode)=0"; . } . catch (Exception ex) . { . Console.WriteLine(ex); . } . . Console.WriteLine("Press Enter"); . Console.ReadLine(); . } . static void ShowLegislators(DataView dvLegislators) . { . // Display contents of dvLegislators . Console.WriteLine("dvLegislators contains:"); . foreach (DataRowView drv in dvLegislators) . { . Console.WriteLine(drv["DisplayName"].ToString()); . } . Console.WriteLine(); . } . } .} Tag: SQL-query with ADO.NET Tag: 94811
  - 24
    - Problem reading data from Access 2000 I cereated a database with only one table (person) in Access 2000 and created and ODBC system DNS (PersonDB). I have following code in my ASP.Net string ConStr = "DSN=PersonDB"; string ComStr = "Select Name from Person"; OdbcDataAdapter dataAdapter = new OdbcDataAdapter(ComStr, ConStr); DataSet dataSet = new DataSet(); dataAdapter.Fill(dataSet, "Person"); I am using the same machine as server and client. I ran this after restarting the machine so I know DB is not used. I get the followin error on the last line above. ERROR [HY000] [Microsoft][ODBC Microsoft Access Driver] The Microsoft Jet database engine cannot open the file '(unknown)'. It is already opened exclusively by another user, or you need permission to view its data. ERROR [IM006] [Microsoft][ODBC Driver Manager] Driver's SQLSetConnectAttr failed ERROR [HY000] [Microsoft][ODBC Microsoft Access Driver] The Microsoft Jet database engine cannot open the file '(unknown)'. It is already opened exclusively by another user, or you need permission to view its data. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. I have given read access to ths mdb to IUSR_ account. Thanks Exception Details: Microsoft.Data.Odbc.OdbcException: ERROR [HY000] [Microsoft][ODBC Microsoft Access Driver] The Microsoft Jet database engine cannot open the file '(unknown)'. It is already opened exclusively by another user, or you need permission to view its data. ERROR [IM006] [Microsoft][ODBC Driver Manager] Driver's SQLSetConnectAttr failed ERROR [HY000] [Microsoft][ODBC Microsoft Access Driver] The Microsoft Jet database engine cannot open the file '(unknown)'. It is already opened exclusively by another user, or you need permission to view its data. Tag: SQL-query with ADO.NET Tag: 94807
  - 25
    - Re: Performance issue with ODP.NET and FillSchema This issue has been solved in ODP Version 9.2.0.4.05. Oracle has changed query performed when trying get metadata information from Oracle Server. Thanks. Tag: SQL-query with ADO.NET Tag: 94804

How to do something like IIf with Sql-query using Sql-Server 2000?

I mean my database table has bit(boolean) field, and if this bit field is on
(true) then calculation field should use other formula than when this
bit-field is not on (false) like ...

IIF(MyTable.BitField = true, "FieldA + FieldB", "FieldA + FieldC") AS
SumValue

I think this should be easy, but I haven't succeeded yet. Yes, I know this
is not Sql-query question, but I need this query with ADO.NET :)

--
Thanks in advance!

Mika

Top

Re: SQL-query with ADO.NET by Mika

Mika
Tue Sep 07 06:16:58 CDT 2004

Sorry my writing error! Last text line should be ...

Yes, I know this is not Sql-query NG, but I need this query with ADO.NET :)

"Mika M" <mika.mahonen@nospam_kolumbus.fi> wrote in message
news:ORfanYMlEHA.712@TK2MSFTNGP09.phx.gbl...
> How to do something like IIf with Sql-query using Sql-Server 2000?
>
> I mean my database table has bit(boolean) field, and if this bit field is
> on (true) then calculation field should use other formula than when this
> bit-field is not on (false) like ...
>
> IIF(MyTable.BitField = true, "FieldA + FieldB", "FieldA + FieldC") AS
> SumValue
>
> I think this should be easy, but I haven't succeeded yet. Yes, I know this
> is not Sql-query question, but I need this query with ADO.NET :)
>
> --
> Thanks in advance!
>
> Mika
>

Top

Re: SQL-query with ADO.NET by Miha

Miha
Tue Sep 07 06:53:47 CDT 2004

Hi Mika,

Straight from the sql server help files (CASE statament):
SELECT 'Price Category' =
CASE
WHEN price IS NULL THEN 'Not yet priced'
WHEN price < 10 THEN 'Very Reasonable Title'
WHEN price >= 10 and price < 20 THEN 'Coffee Table Title'
ELSE 'Expensive book!'
END,
CAST(title AS varchar(20)) AS 'Shortened Title'
FROM titles
ORDER BY price

--
Miha Markic [MVP C#] - RightHand .NET consulting & development
miha at rthand com
www.rthand.com

"Mika M" <mika.mahonen@nospam_kolumbus.fi> wrote in message
news:ORfanYMlEHA.712@TK2MSFTNGP09.phx.gbl...
> How to do something like IIf with Sql-query using Sql-Server 2000?
>
> I mean my database table has bit(boolean) field, and if this bit field is
> on (true) then calculation field should use other formula than when this
> bit-field is not on (false) like ...
>
> IIF(MyTable.BitField = true, "FieldA + FieldB", "FieldA + FieldC") AS
> SumValue
>
> I think this should be easy, but I haven't succeeded yet. Yes, I know this
> is not Sql-query question, but I need this query with ADO.NET :)
>
> --
> Thanks in advance!
>
> Mika
>

Top