MySQL表级锁，行级锁，页级锁各显神通
锁级锁复制UPDATE tbl_name SET column=value WHERE unique_key_col=key_value; DELETE FROM tbl_name WHERE unique_key_col=key_value; 1.2.
锁级锁复制UPDATE tbl_name SET column=value WHERE unique_key_col=key_value; DELETE FROM tbl_name WHERE unique_key_col=key_value; 1.2.