BUG: Function dbcursorfetch Fails with Error 221ID: Q108685
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When calling DB-Library function dbcursorfetch with the FETCH_NEXT option
in a medium-model MS-DOS application, the function call fails, generating
error 221:
Column of type (%s) does not allow nulls. It may not be compared with null.
When building the query to perform the cursor fetch, DB-Library is incorrectly attempting to compare a NOT NULL column with the value NULL.
For MS-DOS programs, use the large-model DB-Library. The function dbcursorfetch behaves correctly on other operating systems.
Microsoft has confirmed this to be a problem in DB-Library version 4.20.50. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.
Additional query words: db-lib dblib cursors
Keywords : kbprg SSrvDB_Lib SSrvProg
Version : 4.2.5
Platform : MS-DOS
Issue type :
Last Reviewed: March 18, 1999