SQL-W3School: SQL DELETE statement

ylbtech-SQL-W3School: SQL DELETE statement

 

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DELETE statement

DELETE statement to remove rows in a table.

grammar

DELETE FROM table name WHERE column name = value

Person:

LastName	FirstName	Address	City
Gates	Bill	Xuanwumen 10	Beijing
Wilson	Fred	Zhongshan 23	Nanjing

Delete a row

"Fred Wilson" will be deleted:

DELETE FROM Person WHERE LastName = 'Wilson' 

result:

LastName	FirstName	Address	City
Gates	Bill	Xuanwumen 10	Beijing

Delete all rows

You can delete all the rows in a table without deleted. Structure, properties, and this means that the table index is complete:

DELETE FROM table_name

or:

DELETE * FROM table_name

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https://www.w3school.com.cn/sql/sql_delete.asp

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