I Have A Receved Money Type Column. I Want To Add Amount In Preveious Value In Receved Column. How To Get Previoius Value To Add With New Value?

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VB

Dim pre As Integer = dr.Item("receved")
                Dim newrec As Integer = CInt(receved) + pre

                cmd1.CommandText = "update feerpt set receved=" & newrec & " where studentid=" & studentid & ""
                cmd1.ExecuteNonQuery()

Posted 21-Mar-14 19:13pm

TCS54321

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Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 22-Mar-14 1:38am

What is the issue here?

2 solutions

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Garth J Lancaster · Answer 1 · 2014-03-21T19:30:00

Solution 1

not sure what your issue is

surely you just do

SQL

"update feerpt set receved = receved + " & newrec & " where studentid .....

yes ?

Posted 21-Mar-14 19:30pm

Garth J Lancaster

Peter Leow · Answer 2 · 2014-03-21T19:47:00

Solution 2

Try this:

"update feerpt set receved=receved + " & newrec & " where studentid='" & studentid & "'"

However, you should use Parameterized-queries-to-prevent-SQL-Injection-Attacks-in-SQL-Server.aspx[^]

Posted 21-Mar-14 19:47pm

Peter Leow

Updated 21-Mar-14 19:50pm

v2