zOs/SQL/VOGLERNA

SELECT COUNT(*) FROM OA1Z.TNZ232A1
;
UPDATE OA1Z.TNZ232A1
    SET NZ232020 = NULL
    WHERE NZ232020 = '9999-12-13-23.59.59.999999'
;
-- SELECT *        FROM OA1A.TNZ232A1
--    ORDER BY NZ232020 DESC
--;
COMMIT
;