How to covert an Oracle GUID to string ?

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  - 1
    - Can Strongly Typed DataSet contains Stored Procedure Wrappers? Hi There! I'm looking into Strongly Typed DataSets in the .NET Framework. I know it can generated strongly typed tables as objects and column names as properties. However, one thing that I would like to know is if it wraps database Stored Procedures as methods and functions? For instance, if I have a Stored Procedure called SelectBestProduct in the Product table, would I be able to call the Stored Procedure with Product.SelectBestProduct() statement and get DataReader or DataTable returned? Thank you all in advance! Jon Tag: How to covert an Oracle GUID to string ? Tag: 134936
  - 2
    - Check these dot net Interview Questions Hi All Check this link... http://www.dotnetinterviews.co.nr/ nice set of Interview Questions Thanks Chris Tag: How to covert an Oracle GUID to string ? Tag: 134934
  - 3
    - Question about the DataSet Merge. Dear All, Now i have a two dataset. they have same db structure and same columns and same rows. just the content is not same between them. for example: datagrid 1: name,sex,order_quality shenzhen benny,male,1000 shanghai allen,male,2000 hangzhou kevin,male,3000 datagrid 2: name,sex,order_quality shenzhen dragon,male,1000 shanghai leo,male,2000 hangzhou james,male,3000 sturcture is sames as the datagrid1. now i want to merge them into one datagrid. how to do it? (i can't used ado's Merge command, because it's not full fill my requirement). i want the combination of these two grids into: name,sex,order_quality,name1,sex1,order_quality1 shenzhen benny,male,1000,dragon,male,1000 shanghai allen,male,2000,leo,male,2000 hangzhou kevin,male,3000,james,male,3000 how to do it for the combination of the above? because the Merge command is only for the data merger for vertical. not for the horizontal. Now i must to used two for...loop...to finish this requirement. But I thinking whether i can get an easily ways to finish that. How is yor suggestion? Thanks, Benny Ng Tag: How to covert an Oracle GUID to string ? Tag: 134930
  - 4
    - World Wide Web Publishing©MIISªºÃö«Y ½Ð°ÝWorld Wide Web Publishing¬O¤£¬Oµ¥©óIIS©O? ©ÎªÌ¨âªÌ¤§¶¡¦³¤°»òÃö¨t©O? Tag: How to covert an Oracle GUID to string ? Tag: 134915
  - 5
    - What is a good strategy for joining data from separate databases I have a situation where I must restructure my data access, and was hoping the community could give me pointers or links to articles that would help. My situation is that I need to query data from two separate databases. One is my application's own database, and the other is a Data Mart created for me with a view I access. The way I do it currently requires that the SQL-Servers be linked, and, given our security setup, on the same SQL-Server. Currently the cross database queries take two forms: SELECT field FROM MyAppDataMart..vwAppData vw JOIN MyOwnDatabaseTable tbl ON vw.Field = tbl.Field OR SELECT field FROM MyAppDataMart..vwAppData vw WHERE NOT EXISTS(SELECT field FROM MyOwnDatabaseTable tbl WHERE vw.Field = tbl.Field) My current .NET business object merely makes a single stored procedure call to retrieve a resultset, with any joins required handled by the stored procedure. It is now considered unacceptable to have a dependency like that in the stored procedure and I need to re-structure the data access such that the .NET business object retrieves data separately from each database eliminiating the need for one database to be able to be linked or even aware of the other. This means, however, that I must handle any JOIN or EXISTS logic in my business object, and I am looking for strategies to accomplish that. From what I have read so far, I'm not sure the DataRelation in ADO.NET can enforce logic more complex than a INNER JOIN. In short, what I need to go to is from Existing: -Call stored procedure which bridges Database1 and Database2 and returns a resultset. Desired: -Retrieve info from Database1 -Retrieve info from Database2 -Apply any logic such as JOIN or EXISTS or NOT EXISTS to filter data -Return resultset. Any pointers or links would be greatly appreciated, thanks. Tag: How to covert an Oracle GUID to string ? Tag: 134912
  - 6
    - reuse connection object with diff username password? I have an ado.net based application (using BDP borland data provider actually). Everything is working fine. Up till now the connection string for my single connection object has been hard coded. set in designer. Now its time to implement login functionality using different user names and passwords. For a 'login' I figured, ok i'll close the connection if its open, then just change the ConnectionString. I set the exact same connection string as designer, I just set different username & password values. The second time I run thru this cycle however I get strange exceptions when trying to close the connection. "No pool found to release connection". Then when I go to use it I get "connection already open". The big question is, are connection objects meant to be reused in this manner, or must I new a new connection instance if I want to have a different connection string? thanks --- Posted via DotNetSlackers.com Tag: How to covert an Oracle GUID to string ? Tag: 134891
  - 7
    - Schema.ini is ignored Hi, i have another problem yet with |-seperated values: i have my connection: connCSV = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0; Data Source=C:\path;Extended Properties=""Text""") and my schema.ini: [test.txt] Format=Delimited(|) but i get one big field containing text like "name|phone|street|" and so on. yesterday it worked, today i juggled a little with the code and i don't know what's wrong here!? has anyone an idea, i'm going crazy on this!!!! :-( thanks a lot :-) chris Tag: How to covert an Oracle GUID to string ? Tag: 134890
  - 8
    - SqlTransaction rollback error Hi, I've read through some posts on this error but none seem to exemplify what I had happen to me and wanted to see if anyone else has seen this. I know a lot of people like to see code, it's going to be hard to show you code examples as I'm using a lot of our common code (which is large) and some of that wraps Microsoft's application blocks. I'll try to explain it as best I can though: Basically, I have an app that is doing some writing to the database (don't they all? :)) and is using our common data code for committing and rolling back transactions. The data code has a class that I'm using that keeps a connection object open. In testing, my app took a very short period of time to run - but in production it is taking a much longer time (another common problem I'm sure). However, it took so long that I ended up getting this error: "This SqlTransaction has completed; it is no longer usable." My thought is that since I kept a connection object open and that the application took waaaayyy longer to run through than it should (over 8 hours), that the connection was lost and that is why I got this error because it couldn't use a transaction on a closed connection. Does that sound like a reasonable explanation of why I might get an error like this? Note: By the way, I am fixing my performance problem - it's outside the scope of this question though. :) Tag: How to covert an Oracle GUID to string ? Tag: 134886
  - 9
    - Bad record count importing excel spreadsheet to DataAdapter? Hello! I'm using the code below to import an Excel datasheet into an ado.net table. The problem is, when I get to the point where I want to iterate the recods, it always thinks that there is 999 records in the table! If the table (worksheet) is larger than that, then it returns an equally fictious number (always way more). Does anybody have any idea what I'm doing wrong? I'ts an excel 2003 spreadsheet that I'm reading from. Thanks in advance! Sub readSheet() Dim excelConn As New System.Data.OleDb.OleDbConnection excelConn.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;" & _ "Data Source=C:\MySpreadSheet.xls;" & _ "Extended Properties=""Excel 8.0;HDR=Yes;""" excelConn.Open() Dim da As New OleDbDataAdapter("Select * From [SheetName$]", excelConn) Dim escapeExit As Boolean = False Dim ds As DataSet = New DataSet() Dim dc As DataColumn = Nothing Dim dt As DataTable = Nothing Dim rec As String = "" Dim i As Integer = 0 Dim x As Integer = 0 da.Fill(ds) dt = excelConn.GetSchema Dim dr As DataRow While Not Me.bwWorker.CancellationPending 'HERE'S THE PROBLEM: IT ALWAYS DECIDES THAT THERE'S 999 RECORDS!!! For Each dr In ds.Tables(0).Rows rec = "" For x = 0 To UBound(dr.ItemArray) rec = rec & " " & dr.ItemArray(x).ToString Next logIt(txtOutput.Text & ControlChars.CrLf & rec) 'Next Next End While excelConn.Close() excelConn.Dispose() End Sub Tag: How to covert an Oracle GUID to string ? Tag: 134882
  - 10
    - SQL Server Express Error on Connection My application uses the following code to attach and open a connection to an SQL Server Express Database: Dim conDatabase As New SqlConnection("Data Source=.\SQLEXPRESS;AttachDbFilename="c:\database.mdf";Integrated Security=True;Connect Timeout=30;User Instance=True") conDatabase.Open() The first time this works fine, then my application detatches the database from SQL Server Express using SSEUTIL. Then the user tries to attach and connect to another database (using the same code as above) and I get this error: A first chance exception of type 'System.Data.SqlClient.SqlException' occurred in System.Data.dll System.Data.SqlClient.SqlException: Unable to open the physical file "c:\anotherpath\database.mdf". Operating system error 32: "32(error not found)". An attempt to attach an auto-named database for file c:\anotherpath\database.mdf failed. A database with the same name exists, or specified file cannot be opened, or it is located on UNC share. Now the databases do have the same filename (in a different folder) but I have checked that after the first database is detached, that SSEUTIL reports that only the orginal system databases are attcahed by using "SSEUTIL -l". So, no, a database with the same name is not attached. The database is not located on a UNC share. Then if I re-write my code to continue calling the Open method of the connection until it is successful, it eventually works. This typically takes around 5000 attempts. Can anyone give me any ideas about what may be causing this problem? TIA Tag: How to covert an Oracle GUID to string ? Tag: 134881
  - 11
    - Querying a Dataset I have a dataset populated from a variety of sources, such as Access Database, SQL Database and Web services. I would like to do a query including JOINs, LEFT, RIGHT, INNER, WHERE clause etc in this dataset. What's the best way to do it? Evan Camilleri Tag: How to covert an Oracle GUID to string ? Tag: 134876
  - 12
    - DataAdapter.Update bug updating Child table via Relations / RowState corrupted? Hi all. .Net 2.0. It seems the DataAdapter.Update Method changes the RowState of child records to 'Modified' when updating them through a Relation. If the child records' .RowState is "Added" or "Deleted," shouldn't they STAY that way? Otherwise when you try to update the child table, you get concurrency errors (record doesn't exist to update) or records fail to delete. Chris B. Tag: How to covert an Oracle GUID to string ? Tag: 134857
  - 13
    - Data Provider for Oracle: MS version vs. Oracle? Anyone have experience with the provider from Microsoft vs. the one from Oracle? I haven't looked very much at either. One would assume that the one written by Oracle itself should perform better, since they should be able to optimize it? Any sort of feedback or experience with either of these? Tag: How to covert an Oracle GUID to string ? Tag: 134850
  - 14
    - updating child records in a DataSet w/ new autoinc values after parent insert? Hi all. Using Dot Net 2.0. I have a typed dataset generated by VS. It contains a parent and a child table with a relationship set up in the MSSQL database and showing in the dataset. _Both_ tables have new records that need to be added to database. I'm able to retrieve the server's autoinc values on the parent table, but I can't seem to get my data adaper to filter the new autoinc values down to the foreign key field in the child table. HOW EXACTLY is this done??? I'm currently doing 3 things: 1. Added an output parameter to the insert command to grab the new autoinc value and feed it into my autoinc field. 2. Set insertCommand.UpdatedRowSource = UpdateRowSource.Both (figure good idea to grab it all). 3. Appended " SELECT @" + identityColumn.ColumnName + " = SCOPE_IDENTITY()" to the insert command. Does #3 keep the entire column's values from being fed back to the DataTable row? Do I need to AcceptChanges? What about if the operation fails and the transaction is rolled back, how do I undo changes made to the dataset? THANKS!!! Chris B. Tag: How to covert an Oracle GUID to string ? Tag: 134845
  - 15
    - Schema.ini for all textfiles in the folder Hi, i try to import several cvs-files into a database. These csv's are delimited by a "|". (don't ask me why it's named csv then ;-) .Net seems to ignore my settings in the connectionstring: ...Properties=""text;HDR=Yes;FMT=Custom-Delimited(|)""" i get a table with one field like name|street|phone and so on So i created a schema.ini and it works with one file, but: in my folder are up to 500 csv-files and im not willing to write all that stuff. now here is my question: is there a way for a global setting for that folder? in schema.ini i tried [*.csv] format=delimited(|) but it didn't work. i could read out all names (changing daily) of that folder an create a schema.ini, but in that case time plays a role and i would be glad if i coud save this time. thanks chris Tag: How to covert an Oracle GUID to string ? Tag: 134832
  - 16
    - [Datagrid Onclick Error] Hi all, Anyone know how to solve the datagrid onclick problem as below: i click a row in a datagrid then the row change to another color, but when i click on another row, the previous row that i clicked still red color, so now have two row that red in color. what I want is the previous row that i clicked change back to its original color without post back the page. I am using code below: <script language="JavaScript"> var lastColorUsed; function prettyDG_changeBackColor(row, highlight) { if (highlight) { lastColorUsed = row.style.backgroundColor; row.style.backgroundColor = 'pink'; } else if (row.style.backgroundColor == 'pink') { row.style.backgroundColor = lastColorUsed; } } var lastRowSelected; var lastRowSelectedColorUsed; function prettyDG_changeBackColor2(row) { var color = lastRowSelectedColorUsed; lastRowSelectedColorUsed= row.style.backgroundColor; row.style.backgroundColor = 'aqua'; lastRowSelected = row; if (lastRowSelected != null) { lastRowSelected.backgroundColor = color; lastRowSelected = row; } } </script> while the code behind as below: e.Item.Attributes.Add("onmouseover", "prettyDG_changeBackColor(this, true);") e.Item.Attributes.Add("onmouseout", "prettyDG_changeBackColor(this, false);") e.Item.Attributes.Add("onclick", "prettyDG_changeBackColor2(this, true);") The logic is when mouse over, the row become 'pink' color, when mouse out, if the row color is 'Pink' then change to transparent else don't change color when clicked, the row become 'Aqua' color. Please advice on how to change back the 'Aqua' to transparent color if we clicked on another row, this mean there will not more than 1 row with 'Aqua' color. Tag: How to covert an Oracle GUID to string ? Tag: 134825
  - 17
    - DataView.Find not working with GUID Using .NET 2.0, I have a DataView with two columns: JobID (a GUID) and JobNumber (an integer). DataView.Sort = "JobID". When I perform a DataView.Find(SomeJobID), I always get a result indicating the row was found, but it's the wrong row (code below). In the code below, as long as JobID is a valid GUID, the Offset is always the wrong row. This code seems to fail only when the DataView.Sort is a GUID - works fine on other types of data. Any ideas? Is this a bug in .NET 2.0? I've seen this same problem described elsewhere on the Internet, but no responses or answers. Thanks in advance, Warren Offset = DV.Find(JobID); if (Offset > -1) { JobNumberText = DV[Offset]["JobNumber"].ToString(); } //JobID was located Tag: How to covert an Oracle GUID to string ? Tag: 134824
  - 18
    - RowFilter date expression Is there an easy way to filter a datetime column on the year. The following does not work: YEAR(BeginDT) = 2006 Also does any one know if there is a list of valid expressions for the rowFilter? Thanks for your help. Tag: How to covert an Oracle GUID to string ? Tag: 134818
  - 19
    - OleDbPermission failed I am trying to test distributing a Windows application that accesses a Jet DB (.mdb) database file. On my development box running Windows XP Pro with Office Pro (and Access) installed, it runs fine. On my test machine running Windows Server 2003 without Office, it fails with Request for the permission of type 'System.Data.OleDb.OleDbPermission, System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed. I have checked, and the Jet Database engine is installed on that machine. It also has Framework 1.1 and 2.0 installed (this app was developed using 2.0). The code is straight from Microsoft's sample ado.net application http://msdn2.microsoft.com/en-us/library/dw70f090.aspx using the OleDb connector. I have found many clues on how to fix this problem when using ASP.NET, but nothing when it occurs in a Windows application. Anyone have any ideas? Thanks, Carole Tag: How to covert an Oracle GUID to string ? Tag: 134817
  - 20
    - InsertCommand gives "Must declare the scalar variable "@..." Hi, I have a strange problem and i think the sollutions is simple, but I don't get it. I have the following piece of code Dim pCommand As New System.Data.OleDb.OleDbCommand Dim sSql As String = "" sSql = "INSERT INTO dbo.Uitgaven ( " sSql &= " UitgavenOmschrijving," sSql &= " UitgavenBedrag," sSql &= " UitgavenKostenPostID," sSql &= " UitgavenDatum" sSql &= " ) " sSql &= "VALUES ( " sSql &= " @UitgavenOmschrijving," sSql &= " @UitgavenBedrag," sSql &= " @UitgavenKostenPostID," sSql &= " @UitgavenDatum" sSql &= " ) " pCommand.CommandText = sSql pCommand.UpdatedRowSource = UpdateRowSource.Both With pCommand .Parameters.Add("@UitgavenOmschrijving", OleDbType.VarChar, 50, "UitgavenOmschrijving") .Parameters.Add("@UitgavenBedrag", OleDbType.Double, 4, "UitgavenBedrag") .Parameters.Add("@uitgavenKostenPostID", OleDbType.Integer, 4, "UitgavenKostenPostID") .Parameters.Add("@UitgavenDatum", OleDbType.Date, 0, "UitgavenDatum") End With pCommand.Connection = pDB.Connection For iTeller As Integer = 0 To pDS.Tables(0).Rows.Count - 1 Try With pCommand .Parameters("@UitgavenOmschrijving").Value = pDS.Tables(0).Rows(iTeller).Item(3) .Parameters("@UitgavenBedrag").Value = pDS.Tables(0).Rows(iTeller).Item(1) .Parameters("@uitgavenKostenPostID").Value = pDS.Tables(0).Rows(iTeller).Item(2) .Parameters("@UitgavenDatum").Value = pDS.Tables(0).Rows(iTeller).Item(0) End With pCommand.CommandType = CommandType.Text MessageBox.Show(pCommand.ExecuteNonQuery) Catch ex As Exception MessageBox.Show(ex.Message) End Try Next I get a error "Mus declare the scalar variable "@UitgavenOmschrijving". I have not include the primary key because that is a database thing for me. Can anyone give me the sollution for my problem Thanks already Klaasjan Tag: How to covert an Oracle GUID to string ? Tag: 134816
  - 21
    - Test Tag: How to covert an Oracle GUID to string ? Tag: 134815
  - 22
    - Save DataSet to Data Definition File I have hundreds of Crystal Reports which have been created on Data Definition Files (ADO Recordset saved into ttx file) All these reports are invoked from VB6 application, and as a datasource for each of them I supply ADO Recordset. Everything works fine. Now I'm working on rewriting VB6 app in VB 2005. Using the same SQL Server SPs, I populate DataTables with data and use those DataTables as datasources for Crystal Reports. Everything works. In case I change something in underlying SP of any report, I can easy recreate TTX file in VB6. I'd like to have this ability in VB 2005. Is there any method of DataSet or DataTable object which saves the structure of underlying DataTable into TTX file. I couldn't find anything. I can recreate any TTX file manually, but I would want to do it using some methods of ADO.NET. Replacing TTX files with XML is not good too, because as I said I have hundreds of reports, and I will need to recreate each of them in case I change their bases (TTX with XML) Any idea please Tag: How to covert an Oracle GUID to string ? Tag: 134813
  - 23
    - Connection String - how to include timeout? Hi, I am having a problem creating a connection string in DotNet. Here is an example below: "Integrated Security=SSPI;database=MyDatabase;server=MySqlServer;Connect Timeout=60" The problem is in the timeout setting. I am running a query using this connection string and it is timing out at 30 seconds, it does not go to the 60 seconds. I figured it must be because it's a connection timeout setting I've used above and not an actual query timeout setting. However, I cannot determine how to set a query timeout setting in my connection string. Is there a way to do this? Tag: How to covert an Oracle GUID to string ? Tag: 134811
  - 24
    - Best way to reference a value in DataRowView When looping over items in the RowDataBound event for a GridView (ASP.NET) I can access e.Row.DataItem which shows as a DataRowView. The following code allows me to access the data for that row. e.Row.DataItem, System.Data.DataRowView).Row.Item(0) Is there a better way to access that data? This syntax looks very ugly and potentially error prone. Ideally I would simply use code like this... e.Row.DataItem("id") But I cannot seem to do that. Brennan Stehling http://brennan.offwhite.net/blog/ Tag: How to covert an Oracle GUID to string ? Tag: 134809
  - 25
    - Trouble displaying info from access db Hi Everyone, I have the project below where I'm pulling out information from 1 table "Subjects", pulling the Subjects, and SubjectCode. The Subjects are displaying in the Combo Box just fine, but I can not get the corresponding Subject Code to display in the Label. I have 2 Data adapters/dataset,1 for Subjects, and the other for SubjectCode, along with a Data View setup. I'm a newbie on VB.NET. This project is pulling from an Access DB. Is there anything that I should be looking for, or doing wrong that I'm not getting the Subject Code to display in the Label? Any help would be appreciated. __________________________________ Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load 'Fill the List box dbSubject.Fill(DsSubject1) dbSubjectCode.Fill(DsSubjectCode2) DisplayRecordPosition() End Sub Private Sub cboSubjectName_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cboSubjectName.SelectedIndexChanged ' DsSubject1.Clear() ' dbSubject.SelectCommand.Parameters("Subjects").Value = cboSubjectName.Text ' dbSubjectCode.Fill(DsSubjectCode2) End Sub Private Sub lblSubName_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles lblSubName.Click DsSubjectCode2.Clear() dbSubjectCode.SelectCommand.Parameters("SubjectCode").Value = lblSubName.Text dbSubjectCode.Fill(DsSubjectCode2) End Sub '*****General Procedures***** Private Sub DisplayRecordPosition() Dim intRecordCount As Integer Dim intRecordPosition As Integer intRecordCount = DsSubject1.Tables("Subjects").Rows.Count If intRecordCount = 0 Then lblSubName.Text = "(No records)" Else intRecordPosition = Me.BindingContext(DsSubject1, "Subjects").Position + 1 lblSubName.Text = "Record: " & intRecordPosition.ToString _ & " of " & intRecordCount.ToString End If End Sub End Class _____________________________________________________ Tag: How to covert an Oracle GUID to string ? Tag: 134808
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  - 1
    - Oracle Hi, My app needs support for Oracle 10 g database : reading (select ...) + updating + calling stored procedures + distributed transactions eventually. I built it in VS 2005 (ado.net 2.0). What should I use ? Microsoft Oracle .NET Managed provider or Oracle Data Provider for .NET 2.0 ? I want to know the limitations of each one, tricky pbs, licensing. Microsoft did release a new Oracle.NET for .NET 2.0 ?? I found only the version 1.0 (http://www.microsoft.com/downloads/details.aspx?FamilyID=4f55d429-17dc-45ea-bfb3-076d1c052524&DisplayLang=en). Does anyone know if I can use promotable transactions (TransactionScope) when working with Oracle 10g ? Thanks for any advice Tag: How to covert an Oracle GUID to string ? Tag: 134805
  - 2
    - Re (by Cor): update DataSet - transaction I think you finally got me! This is an answer i was looking for. But it just feels like a walkaround instead a straight forward, 'by the book (MSDN)' stuff. It's hard to belive that Microsoft did not provide something simpler for a common functionality. Why introducing TableAdapters when transaction is not provided for them? Also i can hardy belive that TableAdapters do not have a base class (or interface) so it's making it hard to program generic solution for them. Oh, yeah, can you please provide code, that would be really heplful. Thanx! > However, I thuougth that I solved with casting the tableadapter again to a > dataadapter and than add the transaction to that. > > > Cor >> "TheMaxx" <themaxxREMOVE@net.hr> schreef in bericht >> news:ejciit$55$1@magcargo.vodatel.hr... >>>I have two tables in dataset, and appropriate TableAdapters. >>> >>> How can i update both tables, but in transaction? >>> >>> I other words: >>> >>> THIS: >>> MyDSTableAdapters.Table1TableAdapter a1 = new ... >>> MyDSTableAdapters.Table1TableAdapter a2 = new ... >>> >>> a1.Update(dt1); >>> a2.Update(dt2); >>> >>> but where to put transaction ? >>> >>> P.S. DataSet and TableAdapters are generated via VS 2005 form SQL 2000 >>> ServerExplorer drag n' drop >>> Tag: How to covert an Oracle GUID to string ? Tag: 134804
  - 3
    - Important Information Check out: www.Brandon-Lands.com Tag: How to covert an Oracle GUID to string ? Tag: 134791
  - 4
    - Datagridview image column nulls I've got a datagridview bound to Sql2k database. When the image columns return null, I get the goofy looking [X] in the column instead of a blank. Anyone know how to make that just appear as empty instead of the default [X]? I would also like that to appear as empty when I insert a new row instead of the [X] if that is possible. Tag: How to covert an Oracle GUID to string ? Tag: 134789
  - 5
    - a a Tag: How to covert an Oracle GUID to string ? Tag: 134785
  - 6
    - Insert in Access threw typed dataset Tableadapter After creating the typed dataset , i've created the wanted sql functions in the .xsd file. Now i'm trying to enter the data into database threw the insert query that was automaticly created by .net . Must add that in the access itself the sql query work , so i'm pretty sure that the syntax is correct. Also the fill of the datatables does work , so the connection to the database is also right. Insert into 'tablename' ('col1','col2') values (?,?) - was created by .net at the beggining. after testing the query at access it worked when i've changed it to: Insert into 'tablename' ('col1','col2') values (col1,col2) - and actually entered the data into database. The data wouldn't enter. Are there any more adjustment i have to do? Tag: How to covert an Oracle GUID to string ? Tag: 134784
  - 7
    - Beginning question for Access OLEDBUpdate command I used the wizard in VB.NET 2003 to generate a data adapter and it created the following update command. It seems like the WHERE clause would never evaluate to true? Am I reading this wrong? The member_ID is the key for the table but it looks like the 2 statements checking the address_1 and address_2 values would only be true if no changes were made. Me.OleDbUpdateCommand1.CommandText = "UPDATE Member_Listing SET address_1 = ?, address_2 = ? WHERE (member_ID = ?) AND (address_1 = ? OR ? IS NULL AND address_1 IS NULL) AND (address_2 = ? OR ? IS NULL AND address_2 IS NULL) Thanks for your help. Dave Tag: How to covert an Oracle GUID to string ? Tag: 134769
  - 8
    - Migrating from MS ACCESS 97 to SSEv I am writing an application to migrate an Access 97 database file to SQL Server Everywhere database file in VB.NET I have code that builds the required tables in a new SSEv database file, "CREATE TABLE", but am stumped at not being able to detect if the Access field is AUTOINCREMENT. I use standard methods to connect to the Access database, ADODB The code field.Properties("ISAUTOINCREMENT").Value always returns false even when the property value is AutoNumber in Access. Also field.Properties("KEYCOLUMN").Value always returns False even when a field is the primary key. Does anyone have any solutions. ADOX did not help either giving similar results Garry Tag: How to covert an Oracle GUID to string ? Tag: 134764
  - 9
    - please help! Error in update Access database I have been trying to update in Access Database. I get this error "Syntax error in UPDATE statement." What could be the problem or can somebody suggest different solution. I call this function from my main page. Public Shared Function UpdateScholarship(ByVal ID As String, ByVal Name As String, ByVal Amount As String, ByVal Year As String, ByVal Criteria As String, ByVal Conditions As String) Dim connection As New OleDbConnection(ConnectionToDatabase) Dim UpdateString As String = "Update ScholarshipDescription Set [Name]='" & Name & "', Amount='" & Amount & "', Year='" & Year & "', Criteria='" & Criteria & "', conditions='" & Conditions & "' Where ID='" & ID & "'" Dim command As New OleDbCommand(UpdateString, connection) connection.Open() command.ExecuteNonQuery() connection.Close() Tag: How to covert an Oracle GUID to string ? Tag: 134758
  - 10
    - MS Access DAO -> ADO.NET Migration I have an VB6 program that I wrote that access Microsoft Access databases using DAO. DAO has methods and properties that are Access specific (such as viewing and editing relationships or indexes on the tables) I want to write a new version of the program in VB 2005, and I want to use ADO.NET to access the data. Are there ways of changing the indexes or relationships of the MS Access database using ADO.NET? Or do I still need to use DAO to perform these operations? As a side note, with a few tests that I've done already with some queries, it seems like DAO is much faster than ADO.NET at running queries and returning results. I am using the DataReader...does anyone have any information about the differences etc? Thanks in advance... Tag: How to covert an Oracle GUID to string ? Tag: 134757
  - 11
    - webservice - dsn - sql server I've created ODBC DSN for sql server. When i connect from win application works OK. When i make WebService (on same machine) that connects to that ODBC connection fails: Error: Server was unable to process request. --> ERROR [28000] [Microsoft][ODBC SQL Server Driver][SQL Server]Login failed for user '(null)'. Reason: Not associated with a trusted SQL Server connection. ERROR [28000] [Microsoft][ODBC SQL Server Driver][SQL Server]Login failed for user '(null)'. Reason: Not associated with a trusted SQL Server connection. ODBC is configured to use SQL Server authentication (login id and passwd) Tag: How to covert an Oracle GUID to string ? Tag: 134744
  - 12
    - connection strings problem solution http://www.connectionstrings.com/ Tag: How to covert an Oracle GUID to string ? Tag: 134733
  - 13
    - Can anyone explain this: Numeric or Value Error Line 1 I have a stored procedure that starts out like so: PROCEDURE test_proc(param1 IN VARCHAR2, param2 IN VARCHAR2, param3 OUT SYS_REFCURSOR) IS v_var varchar2(5); BEGIN SELECT * FROM. . . The procedure tested fine in PL/SQL Developer. When calling from ODP.NET like so. . . OracleCommand cmd = new OracleCommand("test_proc", <connection>); cmd.CommandType = CommandType.StoredProcedure; cmd.Parameters.Add("param1", "somevalue"); cmd.Parameters.Add("param2", "XX"); cmd.Parameters.Add("param3", OracleDbType.RefCursor, ParameterDirection.Output); DataSet ds = new DataSet(); OracleDataAdapter da = new OracleDataAdapter(cmd); con.Open(); da.fill(ds); con.Close(); . . .the procedure executed as expected. If I changed the value of param2 to "XXX" or any value three chars long I got the "ORA-06502: Numeric or Value Error at Line 1" error. After beating my head against the wall for hours, I tried changing the size of v_var to 50, and the error disappeared. Mind you, the error was being thrown long before v_var was being set further down in the proc. Even more interesting is that the possible values of v_var were all *less than 5 chars wide.* Can anyone explain this? Tag: How to covert an Oracle GUID to string ? Tag: 134730
  - 14
    - Problem following first example in "Programming MS ADO.NET 2.0" by David Sceppa I did the example twice with two different databases (Adventure works using MS SQL Server 2005, and an MS Access database). Although the data sources I used were different than Mr. Sceppa's, the SQL Server DB (AdventureWorks) wored flawlessly while the trial using the MS Access database did not. The apparent problem when I tried using an MS Access database is that the database appears to be empty, with only a schema (and in fact I know there is at least 80 MB of data in it). There are no compile time errors. At compile time, and design time, I can see almost all of the database objects in the MS Access database. The only things that seem to be missing are the relationships among the tables. The tables and views are all there! At run time, there are no errors when using the Adventureworks data, and I can browse through the data one person at a time. When I try to run the project that uses the MS Access database, I get the following errors: A first chance exception of type 'System.InvalidOperationException' occurred in System.Data.dll A first chance exception of type 'System.InvalidOperationException' occurred in System.Data.dll The thread 0x570 has exited with code 0 (0x0). The thread 0xe4c has exited with code 0 (0x0). There is output prior to these messages, but that output contains no reference to any problem implying the first mention of an exception shown above is the first occurance of an error. I do not have MS Access installed, but as I am running Windows XP Pro (the 64 bit version), jet seems to be present. I am working within the professional edition of MS Visual Studio 2005, and I have installed MS SQL Server 2005. WHY would I have problems getting a C# windows application using ADO.NET 2 to use an MS Access database while using the same method to develop the program to use an SQL Server database works just fine? I find this very odd since I have another application (2 years old), written in C++ and using ADO/MDAC to work with the very same MS Access database, and this other application works fine (and this on the same machine I'm trying to use to develop these programs)! If it is the case that Jet is basically severely broken, is there an easy way to move an Access database into SQL Server? Ted Tag: How to covert an Oracle GUID to string ? Tag: 134727
  - 15
    - DataAdapter for Insert Hi, I'm using a DataAdapter with sqlserver(Express) in a server app. The SQL Insert is generated with an additional Select when not checked off. How can the result of this generated select be accessed? GetData() with get all the data in the table and not the just inserted data. Thanks BoM Tag: How to covert an Oracle GUID to string ? Tag: 134726
  - 16
    - 2.0: well-written sample application? Hello, I am learning .NET 2.0 (C#, VB, ADO.NET, ASP.NET) and I am looking for a well designed and coded database application - prefably using SQL Server 2005 and ASP.NET. Could you give me a link to such appliacation or send me source? Thank you VERY MUCH! /RAM/ Tag: How to covert an Oracle GUID to string ? Tag: 134724
  - 17
    - TransactionScope exception handling Is there any way to have an DataReader.Read part of a TransactionScope but not cancel the transaction if the read fails? I'm using a DataReader to get the result of a stored procedure which increments a counter. I'd like to add the read to the transaction only if the read is successful. If the read isn't successful I don't want it to cancel the entire distributed transaction but I will need to roll it back (since the SP updates a table) if some other part of the transaction fails. Tag: How to covert an Oracle GUID to string ? Tag: 134722
  - 18
    - DataSet has no rows when proc is returning rows?? Hello, Im going insane with this problem. I have a stored proc that returns 2 recordsets to a dataset. In the dataset i reference the recordsets by their tables like below. ds.tables[0] ds.tables[1] In the first table it says their are 0 rows. The columns get populated but no rows. I run the proc outside VS and the results are correct. In the datase i can reference the second table and pull the rows i need. For what ever reason the first dataset is always empty. I have used this methods before and works great but for some reason it doesnt like the first recordset. In my proc I have 'set nocount on' code below. Here is a run down of the proc..... Query 1: SELECT a.first_name ,a.last_name, upa.organization_id, b.index_code as EmployeeID FROM person_name a, person_indices b, v_user_profile_app upa WHERE a.person_nbr = b.person_nbr AND b.index_code = (SELECT c.code_nbr FROM v_code_entries c WHERE c.table_code = "INDXTP" AND c.code = "EMPNUM") Query 2: Select RoleName FROM UserRoles WHERE person_nber=@person_nbr Tag: How to covert an Oracle GUID to string ? Tag: 134719
  - 19
    - DaatSet has no rows when proc is returning rows?? Hello, Im going insane with this problem. I have a stored proc that returns 2 recordsets to a dataset. In the dataset i reference the recordsets by their tables like below. ds.tables[0] ds.tables[1] In the first table it says their are 0 rows. The columns get populated but no rows. I run the proc outside VS and the results are correct. In the datase i can reference the second table and pull the rows i need. For what ever reason the first dataset is always empty. I have used this methods before and works great but for some reason it doesnt like the first recordset. In my proc I have 'set nocount on' code below. Here is a run down of the proc..... Query 1: SELECT a.first_name ,a.last_name, upa.organization_id, b.index_code as EmployeeID FROM person_name a, person_indices b, v_user_profile_app upa WHERE a.person_nbr = b.person_nbr AND b.index_code = (SELECT c.code_nbr FROM v_code_entries c WHERE c.table_code = "INDXTP" AND c.code = "EMPNUM") Query 2: Select RoleName FROM UserRoles WHERE person_nber=@person_nbr Tag: How to covert an Oracle GUID to string ? Tag: 134718
  - 20
    - Optimize DataTable Select Method Hi all, How can I optimize the DataTable Select Method to make it faster Can I create a Text Index Search ? Thanks alot Regards Tag: How to covert an Oracle GUID to string ? Tag: 134715
  - 21
    - Opening PDF document in new window on click of linkbutton column in datagrid Hi, I need to open PDF document in new window when i click on linkbutton in datagrid.For that i have written code as below: But the problem with this code is that it opens the new window ,but not loading the pdf.Please let me know how can i solve this issue. private void grdTest_ItemCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e) { if(e.CommandName=="View") { LinkButton btn = e.Item.FindControl("linkView") as LinkButton; GetPDF(); btn.Attributes.Add("Onclick","window.open('TestData.aspx');" + "return false;"); } } Here is the GetPDF function: public void GetPDF() { FileStream fs; string fname; fname = MapPath("../") + "via project/documents/Mass_title.pdf"; fs = File.Open(fname, FileMode.Open); byte[] data = new byte[fs.Length]; int i=(int)fs.Length; fs.Read(data, 0, i); fs.Close(); Response.Clear(); Response.Charset = ""; Response.ContentType = "application/pdf"; Response.AddHeader("Content-Disposition", "inline;filename=pdfTest.pdf"); Response.BinaryWrite(data); Response.End(); } Thanks, Vishnu Tag: How to covert an Oracle GUID to string ? Tag: 134714
  - 22
    - BindingSource1.AddNew() Help, I have created Windows app with VS2005. I then drop the datanavigator control and bindingsource control to the form. I bind a dataset tablet to the binding source and set the navigator to the bindingsource control , all wonderfull. The Problem I click to add a new record , it doesnt go to the end ? it goes to record 1 and seems to lose records 1 data. I have tried adding my own button on there with the code BindingSource1.AddNew() , but this does the same. How do I got to the newly created record. Thanks Neil Tag: How to covert an Oracle GUID to string ? Tag: 134712
  - 23
    - MS Data Application Block Hi, In .NET 1.0 and 1.1 I used the Microsoft Data Application Blocks for executing Stored Procedures etc. In .NET 2.0 is there a newer version of these blocks or has the way Data Access works been changed? Thanks, C Tag: How to covert an Oracle GUID to string ? Tag: 134710
  - 24
    - Why 1990 for ShortDate I use a update command to update a smallDateTime filed: Update [Checks] set Checks.CheckDate='' It udpate the CheckDate field to 1990/01/01 Why? Tag: How to covert an Oracle GUID to string ? Tag: 134707
  - 25
    - Concurrency violation I'm just starting to try and learn ADO.NET and was following along in Murach's VB.NET/ADO.NET book samples for typed databases with unbound controls. When I try to execute an update with the my data adapter and the data table as a parameter, daMembers.Update(dsMembers.Member_Listing), I get a concurrency violation. I'm not sure how to track down the problem. Basically I'm doing the following; open the connection, set data adapters selectcommand text, fill the dataset, get a data row from the table, put the data into controls on a form, change the data, put the changes into the data row, and execute the update command. ' load dataset cnRosterDB.Open() daMemberList.SelectCommand.CommandText = sSelectCommand daMemberList.Fill(dsMembers) cnRosterDB.Close() ' get a record drMemberRow = dsMembers.Member_Listing(0) With drMemberRow txtID.Text = .member_ID If .Islast_nameNull Then txtLName.Text = "" Else txtLName.Text = .last_name End If If .Isfirst_nameNull Then txtFName.Text = "" Else txtFName.Text = .first_name End If end with ' put edited data into data row With drMemberRow .member_ID = CInt(txtID.Text) .last_name = txtLName.Text .first_name = txtFName.Text end with ' try to update the database daMemberList.Update(DsMembers.Member_Listing) Any guidance would be appreciated, Thanks Dave Tag: How to covert an Oracle GUID to string ? Tag: 134697

Hi,

I would like to convert an Oracle GUID to its string representation and I
don't know how I can do this.

Could you help me please.

I need this GUID in its string representation to execute an sql query later
with it as primary key.

Thanks for your help

Best Regards

Fred

Top

Re: How to covert an Oracle GUID to string ? by Scott

Scott
Fri Nov 24 14:03:42 CST 2006

How about using the .ToString() method?

"Freddyboy" <Freddyboy@discussions.microsoft.com> wrote in message
news:EC892DB8-EEF3-4BE0-BC38-D6655AC1B6E2@microsoft.com...
> Hi,
>
> I would like to convert an Oracle GUID to its string representation and I
> don't know how I can do this.
>
> Could you help me please.
>
> I need this GUID in its string representation to execute an sql query
> later
> with it as primary key.
>
> Thanks for your help
>
> Best Regards
>
> Fred

Top

Re: How to covert an Oracle GUID to string ? by Freddyboy

Freddyboy
Mon Nov 27 02:24:01 CST 2006

In fact, I have this guid in my oracle database :
6D2F930667BB3C43B5BEE86610DCFE3E

After I do this to get it with its string representation :
Guid aGuid = new Guid(myGuidByteFormatted); // myGuidByteFormatted = byte[]
string myUniqueIdStringFromatted = aGuid.ToString();

The string representation after this code si :
06932f6d-bb67-433c-b5be-e86610dcfe3e

As you can see easily both guids are not the same.
I don't know why. Is it a behavior specific to Oracle ?
How can I solve my problem ?

Thanks for your help.

Fred

"Scott M." wrote:

> How about using the .ToString() method?
>
>
> "Freddyboy" <Freddyboy@discussions.microsoft.com> wrote in message
> news:EC892DB8-EEF3-4BE0-BC38-D6655AC1B6E2@microsoft.com...
> > Hi,
> >
> > I would like to convert an Oracle GUID to its string representation and I
> > don't know how I can do this.
> >
> > Could you help me please.
> >
> > I need this GUID in its string representation to execute an sql query
> > later
> > with it as primary key.
> >
> > Thanks for your help
> >
> > Best Regards
> >
> > Fred
>
>
>

Top