same data inserting in table with new id

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Hi,

i have written insert query on insert button.
when am clicking on insert button it's inserting data in table.
when i click insert button again and again it's inserting same data with new id.

i want if data is already exist in table,it must overwrite the that data.
repeated rows should no be there.

can any one help me.
sample code ll be helpful.

thanks & Regards
sam.198979

Posted 12-Jun-13 1:38am

sam.198979

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Om Prakash Pant · Answer 1 · 2013-06-12T01:49:00

Solution 1

one option is to disable the button once user clicks on button by adding the following:

OnClientClick="this.disabled='true';return true;"

another way is to check for record with same fields. if record already exists then do not insert the data.

Posted 12-Jun-13 1:49am

Om Prakash Pant

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sam.198979 12-Jun-13 7:57am

k if we write insert query on form load then.

_Amy · Answer 2 · 2013-06-12T01:57:00

Your question is clearly explaining the problem.

sam.198979 wrote:
when i click insert button again and again it's inserting same data with new id.

Clear the controls/variables after inserting the data. So, next time it won't insert the same data.

sam.198979 wrote:
i want if data is already exist in table,it must overwrite the that data.

You should use update command to update existing data in database.

--Amit