1317
MySQLerrorstored-procedureshigh confidence
Cursor is already open
Production Risk
Low — runtime error inside stored routine.
What this means
OPEN was called on a cursor that is already in the open state.
Why it happens
- 1Calling OPEN twice without an intervening CLOSE
- 2Loop logic that reopens the cursor each iteration without closing first
How to reproduce
trigger — this will error
trigger — this will error
OPEN cur; OPEN cur;
expected output
ERROR 1317 (24000): Cursor is already open
Fix
Close the cursor before reopening
Close the cursor before reopening
CLOSE cur; OPEN cur;
Why this works
Ensures the cursor state machine is in the correct state.
Sources
Official documentation ↗
MySQL 8.0 — 1317 ER_SP_CURSOR_ALREADY_OPEN
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