“One of the columns in the Excel worksheet I use as a data source contains NULL values for some rows.“I sometimes receive a warning on my Excel Source component saying that the external columns are out of sync with the data source columns.“How do I limit my result set to specific columns when retrieving data from an Excel workbook?”.Do I need to do anything in response to the warning message?” My data flow shows a warning message indicating that data could be truncated however, the package runs with no problem and loads the data into the table. “My SSIS package retrieves data from an Excel worksheet and inserts the data into a SQL Server table.How do you control data types in the source component?” “I’ve tried changing the data types that the Excel Source component assigns to the incoming data but have had no luck.
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