Scope:
DSQL, PSQL
Example(s):
1. INSERT INTO T1 (F1, F2)
VALUES (:F1, :F2)
RETURNING F1, F2 INTO :V1, :V2;
2. INSERT INTO T2 (F1, F2)
VALUES (1, 2)
RETURNING ID INTO :PK;
3. DELETE FROM T1 WHERE F1 = 1 RETURNING F2;
4. UPDATE T1 SET F2 = F2 * 10 RETURNING OLD.F2, NEW.F2;