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Error generating the Update, Insert and Delete command

Posted on 2006-11-21
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Last Modified: 2010-04-23
Hi All

I am using SQL Server 2005 Express Edition on my home computer to develop some applications for my work. When ever i create a new SQLDataAdapter i get an error saying "Error Generating the Insert, Update and Delete Commands". However, when I use my office SQL Server (which is SQL Server 2000) via vpn I don't get this error.

I know the problem it not with the permissions, as when I change the ConnectionString for the SQLConnection, to use my home SQL Server 2005 Express Edition it works. I have also tried creating a new CommandBuilder and using the same DataAdapter for adding, deleteing and/or changing records in a table, hence the same data adapter works. But when I create a new one visually, it does not generate insert, delete and update commands - which is very tiring as I have to make a CommandBuilder object everytime i want to add, remove or modify any data in a table.

Any help is much appreciated!
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Question by:shkhurram
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8 Comments
 
LVL 7

Expert Comment

by:Mohamed Zedan
ID: 17990772
What is the select command  that is generated visually?
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Expert Comment

by:Vaxman2
ID: 17991081
I believe you get that error if the select statement you have set for the DataAdapter doesn't have a field selected that is the primary key for the table.  I would check the table you are creating the adapter for to verify it has a primary key.
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Expert Comment

by:vbturbo
ID: 17994346
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Author Comment

by:shkhurram
ID: 17998301
the select statement do have the primary key and all the fields which are set "not null" the sql server. If there is a problem with the dataadapter, then it should'nt work when i change the connection string from my VPN server to my local server. I believe something is wrong with the connection, i.e. SQL Server 2000 drivers and SQL Server 2005... ??? do i need some special drivers. Although I have updated MDAC 2.8 SP1 drivers.
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Expert Comment

by:Mohamed Zedan
ID: 17999065
Try using oledbDataAdapter it should be more compatible.
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Mohamed Zedan earned 500 total points
ID: 17999069
with an oledbconnection to SQL Server
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Author Comment

by:shkhurram
ID: 17999626
I tried the OLEdbDataAdapter and it worked.

Also when I downloaded the SQL Server 2005 Native Client, it makes a connection using this adapter. Can you tell me the difference between using OLEDB and SQL DataAdapters?
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Expert Comment

by:Mohamed Zedan
ID: 17999711

SqlConnection class was made to connect to the SQL server only and was made before SQLServer2005 .NET 1.1 maybe that's the problem ... as .NET 2.0 has builtin support for SQL2005 ...

Oledb is a generic data access library which uses data providers to connect to different data source...

SQLClient library is specifically desgined for SQL Server  on and for that is quite faster than oledb...

so SqlClient is faster but oledb is safer ...
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