upload an excel sheet into sql table without duplicates in asp.net

Question

0.00/5 (No votes)

See more:

Hi,
I am uploading an excel sheet into sql table.
I want to upload a data without duplicates.
If the data already exists in the table, that should update the table.
If the data doesn't exists in the table, then that should append the table.
Kindly say the solution for it.
I tried with many codes..All flopped...

Posted 5-Jul-12 0:33am

comeshyamala

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

ZurdoDev · Answer 1 · 2012-07-05T05:14:00

Solution 1

SQL

IF EXISTS(SELECT * FROM table WHERE id1 = @id)
  BEGIN
     -- do the update because you know it exists
     UPDATE Table SET field1 = @field1, etc.
  END
ELSE
  BEGIN
    -- do an insert, because it does not exist
    INSERT INTO table ...
  END

Posted 5-Jul-12 5:14am

ZurdoDev

Comments

comeshyamala 6-Jul-12 3:26am

Thank you so much...But i want to know the code in asp.net...
I dont know how to connect to sql by using asp.net

ZurdoDev 6-Jul-12 7:52am

There is a lot to it, more than I can give you here. Do you not have a SQL class already to connect to db? Look into the SQLDataSource and SQLCommand objects. You will use those.