将MySQL列中每个值的大小写转换为大写
为此,请UPPER()
在MySQL专栏中使用。让我们首先创建一个表-
mysql> create table DemoTable627 (Id int NOT NULL AUTO_INCREMENT PRIMARY KEY,FirstName varchar(100));
使用插入命令在表中插入一些记录-
mysql> insert into DemoTable627(FirstName) values(UPPER('John'));mysql> insert into DemoTable627(FirstName) values(UPPER('Sam'));
mysql> insert into DemoTable627(FirstName) values(UPPER('Mike'));
mysql> insert into DemoTable627(FirstName) values(UPPER('Carol'));
mysql> insert into DemoTable627(FirstName) values(UPPER('dAVID'));
使用select语句显示表中的所有记录-
mysql> select *from DemoTable627;
这将产生以下输出-
+----+-----------+| Id | FirstName |
+----+-----------+
| 1 | JOHN |
| 2 | SAM |
| 3 | MIKE |
| 4 | CAROL |
| 5 | DAVID |
+----+-----------+
5 rows in set (0.00 sec)
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