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A bookmark is
a value that identifies a row of data. IBM Informix ODBC
Driver supports bookmarks
with SQLFetchScroll and SQLExtendedFetch and
does not support them with SQLBulkOperations. IBM Informix ODBC
Driver supports bookmarks
to the following extent:
- Uses only variable length bookmarks.
- SQL_DESC_OCTET_LENGTH is
set to 4 for bookmark columns.
- A bookmark is an integer that contains the row number within
the row set, starting with 1.
- Bookmarks persist only as long as the cursor remains open.
- SQLFetchScroll, using SQL_FETCH_BOOKMARK for
the fetch orientation argument, is fully supported.
- SQLBulkOperations will not update the
bookmark column for SQL_ADD.
For more information about ODBC bookmarks, see the IBM Informix: Microsoft ODBC 3.0 Programmer's Reference.
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