updating data in database through update query

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This is my update query.

I am not getting any errors but the values are not being updated into the database.

cmd.CommandText = "update registration set name ='" + txtname1.Text + "',email_id='" + txtemail1.Text + "',degree='" + txtdegree1.Text + "',address='" + txtaddress1.Text + "' where employee_id='" + txtemployeeid1.Text + "'";

Posted 24-Aug-10 18:25pm

srujanac#

Updated 31-Aug-10 3:31am

Dalek Dave

v2

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Comments

DavidKiryazi 25-Aug-10 0:46am

Might help if you post a bit more code :) Are you using the following command somewhere

cmd.ExecuteNonQuery()

Per Söderlund 25-Aug-10 1:15am

I can't find anything wrong with your CommandText.

Dalek Dave 31-Aug-10 9:31am

Edited for Readability.

3 solutions

Solution 3

if type of field is number,don't use quotation sign :

"... where employee_id=" + txtEmployeeid1.Text + ""

Posted 31-Aug-10 9:18am

cheshm6k

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Sandeep Mewara 31-Aug-10 15:31pm

You could have updated your last answer instead of adding a new one!

Solution 4

In addition to the other comments, are you binding to your data in the prerender event, b/c if you're doing it in your page load, you bind before you update, which would stop the data appearing on screen, first time. Secondly, assuming you resolved this, I hope this application will never be used in the real world, because any malicious user that would want to delete your database, could, due to a lack of security in your code.

Posted 31-Aug-10 9:43am

Christian Graus

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Al-Farooque Shubho · Accepted Answer · 2010-08-24T18:44:00

Try to debug it as follows (Assuming you are using Visual Studio):

1. Set a breakpoint at the following line and run your program in debug mode.

cmd.CommandText = ...

2. When the breakpoint hits this line, view the value of cmd.CommandText (Using watch or Immediate window) and copy the value.

3. Run the SQL in the SQL Server Management Studio (Or, the query window of your database server).

4. See what happens. If it does not run correctly, try to analyze the SQL and find problem. Make sure the SQL is correct.

5. Now, find the difference between the correct SQL and the SQL that you copied from the cmd.CommandText property from the breakpoint. Fix the code that is generating the wrong part of the SQL.

Hopefully, your problem will be solved

Best wishes