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Nilsen
Fred
Kirkegt 56
Stavanger
Rasmussen
Storgt 67

更新某一行中的一个列


我们为last name是"Rasmussen"的人添加first name:

UPDATE Person SET FirstName = 'Nina'
WHERE LastName = 'Rasmussen'

结果:






Nilsen
Fred
Kirkegt 56
Stavanger
Rasmussen
Nina
Storgt 67

更新某一行中的若干列


我们会修改地址(address),并添加城市名称(name of the city):

UPDATE Person
SET Address = 'Stien 12', City = 'Stavanger'
WHERE LastName = 'Rasmussen'

结果:






Nilsen
Fred
Kirkegt 56
Stavanger
Rasmussen
Nina
Stien 12
Stavanger





归海一刀 published in(发表于) 2014/2/3 6:39:25 Edit(编辑)
SQL初学者教程:学会使用SQL UPDATE语句_[SQL Server教程]

SQL初学者教程:学会使用SQL UPDATE语句_[SQL Server教程]

SQL初学者教程:学会使用SQL UPDATE语句_[SQL Server教程]


Update 语句


Update 语句用于修改表中的数据。


语法:

UPDATE table_name
SET column_name = new_value
WHERE column_name = some_value

Person:


LastNameFirstNameAddressCityLastNameFirstNameAddressCityLastNameFirstNameAddressCity


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