使用SQL Delete命令刪除記錄
SQL Delete命令用于刪除SQL數(shù)據(jù)庫中的記錄,下面就為您詳細介紹SQL Delete命令的用法,希望可以讓您對SQL Delete命令有更深的認識。
DELETE 聲明
The DELETE statement is used to delete rows in a table.
DELETE 聲明常用來刪除表中的數(shù)據(jù)。
語法
DELETE FROM table_nameWHERE column_name = some_value
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Person:
LastName FirstName Address City
Nilsen Fred Kirkegt 56 Stavanger
Rasmussen Nina Stien 12 Stavanger
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Delete a Row
刪除一條記錄
"Nina Rasmussen" is going to be deleted:
"Nina Rasmussen" 的所有個人信息將被刪除:
DELETE FROM Person WHERE LastName = 'Rasmussen'
結(jié)果
LastName FirstName Address City
Nilsen Fred Kirkegt 56 Stavanger
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Delete All Rows
刪除所有記錄
It is possible to delete all rows in a table without deleting the table. This means that the table structure, attributes, and indexes will be intact:
可以不刪除數(shù)據(jù)表且刪除里面的所有記錄行。這就意味著數(shù)據(jù)表構(gòu)架,屬性以及索引都會完整保留:
DELETE FROM table_name或DELETE * FROM table_name
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