DataGrip 2021.2 Help

Code Inspection: Illegal cursor state

Reports illegal cursor states inside SQL routines.

  • A routine has CLOSE or FETCH statements but a cursor might be closed.

  • A routine has the OPEN statement but a cursor might be opened.



Example (Microsoft SQL Server):
CREATE TABLE t(col INT); CREATE PROCEDURE foo() AS BEGIN DECLARE my_cursor CURSOR FOR SELECT * FROM t; DECLARE a INT; FETCH my_cursor INTO a; CLOSE my_cursor; END;


According to CLOSE (Transact-SQL) at docs.microsoft.com, CLOSE must be issued on an open cursor, and CLOSE is not allowed on cursors that have only been declared or are already closed. So, we need to open the cursor to fix the warning.
CREATE PROCEDURE foo() AS BEGIN DECLARE my_cursor CURSOR FOR SELECT * FROM t; DECLARE a INT; OPEN my_cursor; FETCH my_cursor INTO a; CLOSE my_cursor; END;

Suppress an inspection in the editor

  1. Position the caret at the highlighted line and press Alt+Enter or click the Intention action icon.

  2. Click the arrow next to the inspection you want to suppress and select the necessary suppress action.

Last modified: 16 July 2021