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Linked Server Data Does Not Match Expected Data Length

Jack Vamvas looks at a linked server error:

I’ve found an issue we have with BI Connector over MongoDB. I’m extracting data from MongoDB to SQL Server – using the MongoDB ODBC Data Source Configuration and Linked Server. Basically the BI Connector fails when the string in the column gets too long.  When running the job to bring in the data to the production workflow data into a  Datawarehouse application we get the following error.

Msg 7347, Level 16, State 1, Line 1

OLE DB provider ‘MSDASQL’ for linked server ‘MongoDB_PROD_mydb’ returned data that does not match expected data length for column ‘[MSDASQL].mywork.mytasks.mytaskInfo’. The (maximum) expected data length is 5332, while the returned data length is 5970.

Completion time: 2020-11-05T17:14:10.2206504+00:00

Read on for one solution.

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