same data inserted 2 times in database

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SQL-Server-2005

pls help me, i have table studentmaster(firstname,lastname,fathername,phone,address). i am inserting data into database 2 times the data will be inserted. forexample:

insert into studentmaster(firstname,lastname,fathername,phone,address) values('aaaa','bbbb,'cccc',1111,'delhi');

Posted 16-Aug-12 9:14am

chinta123

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Sergey Alexandrovich Kryukov 16-Aug-12 15:18pm

Do you have a question?
--SA

[no name] 16-Aug-12 15:31pm

If you are telling us that if I were to go through the trouble of creating a table in my database like that and run that query once, it will actually insert the data 2 times? I do not think so.

ridoy 16-Aug-12 15:51pm

Whether it is a question or a problem??

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Wendelius · Accepted Answer · 2012-08-16T09:45:00

When you insert a row to the database, a single row is inserted. The database doesn't duplicate the row automatically in any case. Possible reasons for the duplication include at least:

you execute the statement twice: Try to find if you for example have the call to ExecuteNonQuery mistakenly twice in your code
the insert statement is included twice in your SQL string. Using debugger, see if the insert statement is mistakenly put to the SQL string twice.
the method in your code is called twice. This should be easy to pinpoint. Put a breakpoint on the method and see when it's hit
you have a trigger that's causing the duplication. Investigate the triggers of the table using SSMS
a procedure does the insertion: see if you have a procedure that inserts the other row and if it's called from your application (or from a trigger)