10. Understanding ODBC Connectivity : ODBC Programming : Large Objects (Blobs) Support
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Large Objects (Blobs) Support
The SQLGetData() and SQLPutData() functions allow fetching or insertion of data in segments. Any non-atomic data type, such as char or byte varying, can be sent or fetched in segments, but generally segments are used with large objects, sometimes known as "blobs".
The ODBC Driver supports the following large objects:
Long varchar (SQL_LONGVARCHAR)
Long nvarchar (SQL_WLONGVARCHAR)
Although large object locators are supported in Ingres 9.1 and later, the ODBC Driver does not support large object locators, since there is no corresponding support in the ODBC specification.