标签：from select nta column col ddr first ble div
UCASE 函数把字段的值转换为大写。
SELECT UCASE(column_name) FROM table_name
我们拥有下面这个 "Persons" 表：
| Id | LastName | FirstName | Address | City |
|---|---|---|---|---|
| 1 | Adams | John | Oxford Street | London |
| 2 | Bush | George | Fifth Avenue | New York |
| 3 | Carter | Thomas | Changan Street | Beijing |
现在，我们希望选取 "LastName" 和 "FirstName" 列的内容，然后把 "LastName" 列转换为大写。
我们使用如下 SQL 语句：
SELECT UCASE(LastName) as LastName,FirstName FROM Persons
结果集类似这样：
| LastName | FirstName |
|---|---|
| ADAMS | John |
| BUSH | George |
| CARTER | Thomas |
标签：from select nta column col ddr first ble div
原文地址：https://www.cnblogs.com/yangzp/p/9802977.html
