Friday 2 December 2011

SQL Delete


The DELETE statement is used to delete rows in a table


SQL DELETE Syntax

DELETE FROM table_name
WHERE some_column=some_value


The "custmast" table


custcode
custname
city
qty
rate
1
Siva
Srivilliputtur
50
70
2
Bala
Sivakasi
30
56
3
Kanna
Chennai
100
200
4
Vijay
Chennai
30
30
5
Kodee
Srivilliputtur
60
30
5
Kodee
Srivilliputtur
60
30



Example : 1

Delete from custmast where custcode=5


custcode
custname
city
qty
rate
1
Siva
Virudhunagar
50
70
2
Bala
Sivakasi
30
56
3
Kanna
Chennai
100
200
4
Vijay
Chennai
30
30






Example 2:

Delete from custmast where city='Chennai'



custcode
custname
city
qty
rate
1
Siva
Virudhunagar
50
70
2
Bala
Sivakasi
30
56




Delete All Records 


Delete from Custmast



custcode
custname
city
qty
rate








Delete * from custmast 

Error :  Incorrect syntax near '*'.


Notes :  Not use * Delete query in Sql server




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