DROP TABLE IF EXISTS t7; SET SQL_MODE='TRADITIONAL'; CREATE TABLE t7(c1 SET('a','b','c') NULL); INSERT INTO t7(c1) VALUES('abc'); ERROR 01000: Data truncated for column 'c1' at row 1 SELECT * FROM t7; c1 INSERT INTO t7(c1) VALUES(123); ERROR 01000: Data truncated for column 'c1' at row 1 SELECT * FROM t7; c1 INSERT INTO t7(c1) VALUES(0x878A); ERROR 01000: Data truncated for column 'c1' at row 1 SELECT * FROM t7; c1 INSERT INTO t7(c1) VALUES(NOW()); ERROR 01000: Data truncated for column 'c1' at row 1 SELECT * FROM t7; c1 DROP TABLE t7; SET SQL_MODE=''; SET SQL_MODE='TRADITIONAL'; CREATE TABLE t7(c1 ENUM('a','b','c') NULL); INSERT INTO t7(c1) VALUES('abc'); ERROR 01000: Data truncated for column 'c1' at row 1 SELECT * FROM t7; c1 INSERT INTO t7(c1) VALUES(123); ERROR 01000: Data truncated for column 'c1' at row 1 SELECT * FROM t7; c1 INSERT INTO t7(c1) VALUES(0x878A); ERROR 01000: Data truncated for column 'c1' at row 1 SELECT * FROM t7; c1 INSERT INTO t7(c1) VALUES(NOW()); ERROR 01000: Data truncated for column 'c1' at row 1 SELECT * FROM t7; c1 DROP TABLE t7; SET SQL_MODE='';