从MySQL导入SQL Server时SSIS中的绑定错误

Question

I am pretty new to SSIS and have inherited a very simple package that imports data from a MySQL database into a SQL Server table (OLE DB Destination). The MySQL developer gave me a new query to use in place of the one currently used in the Data Flow Component (ADO.NET Source) which allegedly provides the same output columns as before. I simply pasted it into the SqlCommand field in place of the existing query. But when I execute the package, I get five errors:

Error: 0xC002F445 at Data Import, OLE DB Destination [202]: An error occurred while setting up a binding for the "Column1" column. The binding status was "DT_NTEXT".
Error: 0xC002F446 at Data Import, OLE DB Destination [202]: An error occurred while setting up a binding for the "Column2" column. The binding status was "DT_NTEXT". The data flow column type is "DBBINDSTATUS_UNSUPPORTEDCONVERSION". The conversion from the OLE DB type of "DBTYPE_IUNKNOWN" to the destination column type of "DBTYPE_WVARCHAR" might not be supported by this provider.
Error: 0xC002F445 at Data Import, OLE DB Destination [202]: An error occurred while setting up a binding for the "Column3" column. The binding status was "DT_TEXT".
Error: 0xC002F445 at Data Import, OLE DB Destination [202]: An error occurred while setting up a binding for the "Column4" column. The binding status was "DT_TEXT".
Error: 0xC002F445 at Data Import, OLE DB Destination [202]: An error occurred while setting up a binding for the "Column5" column. The binding status was "DT_NUMERIC".

I am using SSIS in SQL Server 2012 SP1. Note that the AllowImplicitStringConversion is set to True in the ADO.NET Source. I had the MySQL developer give me a CSV of the result of running the query directly in MySQL so I could see what the data actually looks like.

1. For the first error (0xC002F445 for Column1), the DataType is Unicode text stream [DT_NTEXT] for both the External Columns section and the Output Columns section, and the destination SQL Server table is expecting an NVARCHAR(max) . What binding problem might I have?
2. For the second error (0xC002F446 for Column2) first, the DataType is Unicode text stream [DT_NTEXT] for both the External Columns section and the Output Columns section, and the destination SQL Server table is expecting an NVARCHAR(15) . The result set in the CSV has 'NULL' in this column for every row. I don't see why there is a problem, as we are trying to insert 4 characters into a 15 character column.
3. The next two columns have Unicode string [DT_WSTR] for both the External and Output types, and a TEXT type in the destination.
4. The last column is numeric [DT_NUMERIC] for both the External and Output types, and a NVARCHAR(MAX) type in the destination. Given that , I don't see why this is a problem.

Can anyone provide some guidance as to how I can resolve these issues?

By the way, what is the [202] in each error telling me?

Answer 1

Had a similar problem when importing from an Excel file (Excel source) into OLE DB Destination, which gave me an error message like yours. It occured when there was a column in my Excel file that had more than 255 characters, which my package couldn't handle.

The solution for me was to just export the columns to a text file and import that instead.