标签:body data int address div amp 表名 tab res
Update 语句用于修改表中的数据。
UPDATE 表名称 SET 列名称 = 新值 WHERE 列名称 = 某值
LastName | FirstName | Address | City |
---|---|---|---|
Gates | Bill | Xuanwumen 10 | Beijing |
Wilson | Champs-Elysees |
我们为 lastname 是 "Wilson" 的人添加 firstname:
UPDATE Person SET FirstName = ‘Fred‘ WHERE LastName = ‘Wilson‘
LastName | FirstName | Address | City |
---|---|---|---|
Gates | Bill | Xuanwumen 10 | Beijing |
Wilson | Fred | Champs-Elysees |
我们会修改地址(address),并添加城市名称(city):
UPDATE Person SET Address = ‘Zhongshan 23‘, City = ‘Nanjing‘ WHERE LastName = ‘Wilson‘
LastName | FirstName | Address | City |
---|---|---|---|
Gates | Bill | Xuanwumen 10 | Beijing |
Wilson | Fred | Zhongshan 23 | Nanjing |
标签:body data int address div amp 表名 tab res
原文地址:http://www.cnblogs.com/fxx0129-nn/p/7067582.html