ADO.NET Batch Insert with over 2000 parameters
- by Liming
Hello all,
I'm using Enterprise library, but the idea is the same. I have a SqlStringCommand and the sql
is constructed using StringBuilder in the forms of
"insert into table (column1, column2, column3) values (@param1-X, @param2-X, @parm3-X)"+" "
where "X" represents a "for loop" about 700 rows
StringBuilder sb = new StringBuilder();
for(int i=0; i<700; i++)
{
sb.Append("insert into table (column1, column2, column3) values (@param1-"+i+", @param2-"+i, +",@parm3-"+i+") " );
}
followed by constructing a command object injecting all the parameters w/ values into it.
Essentially, 700 rows with 3 parameters, I ended up with 2100 parameters for this "one sql" Statement.
It ran fine for about a few days and suddenly I got this error
===============================================================
A severe error occurred on the current command. The results, if any, should be discarded.
at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection)
at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection)
at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj)
at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)
at System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString)
at System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async)
at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, DbAsyncResult result)
at System.Data.SqlClient.SqlCommand.InternalExecuteNon
Any pointers are greatly appreciated.
