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mysql lower()函数

yunbo1
数据库
2026-09-01
107

mysql> select " DFREF";
+--------+
| DFREF  |
+--------+
|  DFREF |
+--------+
1 row in set (0.00 sec)


mysql> select lower(" DFREF");
+-----------------+
| lower(" DFREF") |
+-----------------+
|  dfref          |
+-----------------+
1 row in set (0.00 sec)