日期:2014-05-16 浏览次数:20867 次
mysql> create table testtext(a text,b text); Query OK, 0 rows affected (0.12 sec) mysql> insert into testtext values('a','b'); Query OK, 1 row affected (0.00 sec) mysql> update testtext set a = concat(a,b); Query OK, 1 row affected (0.00 sec) Rows matched: 1 Changed: 1 Warnings: 0