摘要: CONCAT,字符串拼接: SQL> SELECT CONCAT('FIRST ', 'SECOND'); + + | CONCAT('FIRST ', 'SECOND') | + + | FIRST SECOND | + + 1 row in set (0.00 sec) MySQL中concat 阅读全文
posted @ 2020-07-06 23:23 苏道羲 阅读(250) 评论(0) 推荐(0) 编辑