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ij> AUTOCOMMIT OFF;
ij> -- MODULE YTS796
-- SQL Test Suite, V6.0, Interactive SQL, yts796.sql
-- 59-byte ID
-- TEd Version #
-- AUTHORIZATION CTS1
set schema CTS1;
0 rows inserted/updated/deleted
ij> --O SELECT USER FROM HU.ECCO;
VALUES USER;
1
--------------------------------------------------------------------------------------------------------------------------------
CTS1
ij> -- RERUN if USER value does not match preceding AUTHORIZATION comment
ROLLBACK WORK;
ij> -- date_time print
-- TEST:7530 <scalar subquery> as first operand in <comp pred>!
--O SELECT EMPNAME FROM STAFF WHERE
--O (SELECT EMPNUM FROM WORKS WHERE PNUM = 'P3')
SELECT EMPNAME FROM HU.STAFF WHERE
(SELECT EMPNUM FROM HU.WORKS WHERE PNUM = 'P3')
= EMPNUM;
EMPNAME
--------------------
Alice
ij> -- PASS:7530 If empname = 'Alice'?
--O SELECT EMPNAME FROM STAFF WHERE
--O (SELECT EMPNUM FROM WORKS WHERE PNUM = 'P4')
SELECT EMPNAME FROM HU.STAFF WHERE
(SELECT EMPNUM FROM HU.WORKS WHERE PNUM = 'P4')
= EMPNUM;
ERROR 21000: Scalar subquery is only allowed to return a single row.
ij> -- PASS:7530 If ERROR - cardinality violation?
ROLLBACK WORK;
ij> -- END TEST >>> 7530 <<< END TEST
-- *********************************************
-- *************************************************////END-OF-MODULE
;
ij>
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