Informix Error -7442: The statement must be opened before this operation can be performed.
Cause and resolution
The statement must be opened before this operation can be performed.
An attempt was made to fetch or close a prepared statement that is not open. Ensure that a mi_open_prepared_statement call was successfully completed prior to calling mi_fetch_statement or mi_close_statement.
Oninit® Troubleshooting Guidance
Reasons / Common Causes
-7442 fires when a mi_fetch_statement or mi_close_statement call is made against a
prepared statement that isn't open — per the official guidance.
mi_open_prepared_statementwasn't called, or didn't complete successfully, beforemi_fetch_statement/mi_close_statement, per the official guidance — the direct, only cause.
Solutions / Resolution
- Ensure a
mi_open_prepared_statementcall was successfully completed prior to callingmi_fetch_statementormi_close_statement, per the official guidance.
Examples
Fetching before opening
mi_fetch_statement(conn, stmt, ...);
/* -7442: mi_open_prepared_statement was never called for stmt */
Diagnostic Checks
- Check the call sequence for the statement handle, and confirm
mi_open_prepared_statementsucceeded beforemi_fetch_statement/mi_close_statement.
Related Errors / Related Topics
- -7443 — "The statement must be closed before it can be reopened or executed." The complementary condition — an already-open statement, rather than one that was never opened.
A prepared statement was fetched/closed without being successfully opened first —
mi_open_prepared_statement must complete first.