• Converting Data from SQL to C Data Types
  When an application calls SQLFetch, SQLFetchScroll, or SQLGetData, the driver retrieves the data from the data source. If necessary, it converts the data from the data type in which the driver retrieved it to the data type specified by the TargetType argument in SQLBindCol or SQLGetData. Finally, it stores the data in the location pointed to by the TargetValuePtr argument in SQLBindCol or SQLGetData (and the SQL_DESC_DATA_PTR field of the ARD).
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