Can't perform queries like update and delete

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How do I update and delete a record in vb.net?

VB

cmd = New OleDbCommand("update empl set name =" & "'" & TextBox2.Text & "'" & "," & "city = " & "'" & TextBox3.Text & "'" & "," & "cont_no = " & TextBox4.Text & "," & "salary =" & TextBox5.Text & "where no=" & TextBox1.Text & , cn)

using this query I cant update my record and also delete

Posted 9-Feb-11 0:07am

somil030

Updated 9-Feb-11 1:43am

Chris Maunder773.1K

v4

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Abhinav S · Answer 1 · 2011-02-09T00:19:00

Solution 1

Make sure you have a record that exists for your no parameter.
Put a debug point in your code on the TextBox1.Text line and see what values come in there.

Posted 9-Feb-11 0:19am

Abhinav S

Comments

somil030 9-Feb-11 6:34am

than what type of query performed in Ms Access??

Manfred Rudolf Bihy · Answer 2 · 2011-02-09T00:28:00

I take it that no and cont_no are fields in table empl and are number types and not a character types. If they were of character type you would need to put quotes around the literals you take from TextBox1 and TextBox2 inside your where clause.

A side note: Please don't piece together your SQL statement like that. Use SQL parameters as they will keep you safe from SQL injection attacks and give you better readability of your SQL statements.

Best Regards,
Manfred