Thursday, 15 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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