DELETE Query

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HIe!

I am creating a windows application in vb.net
databse : MS Access

can any one tell me how to delete record logically rather than Physically ?

i have no idea how to do please give ma some sample code ....

Thank you

Posted 2-Jul-10 0:37am

Npanchasara

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DaveAuld 2-Jul-10 6:40am

What you on about, logically or physically.............

CPallini 2-Jul-10 6:51am

Uh? What do you mean? Cannot you use a field as flag to exclude ('logically delete') unwanted records?

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**R. Giskard Reventlov** · Answer 1 · 2010-07-02T00:53:00

Do you mean to mark it as deleted rather than to actually remove it from the database?

If so I usually add a column named IsActive as a bit field (boolean in Access) and default it to 1 or true.

When I want to 'hide' (delete) the record I update the row to reflect that IsActive is now 0 (zero) or false.

Whenever you query the data ensure that the where clause contains

and IsActive = 1

or
and IsActive = 0

as appropriate.

Course, you probably meant something else entirely...

alrosan · Answer 2 · 2010-07-05T10:33:00

implement :
Imports System.Data
Imports System.Data.OleDb

then use this procedure
Sub AccessDeleteRow()
Dim connStr As String = "Data Source=mdbFileLocate;Provider=Microsoft.Jet.Oledb.4.0;connection Timeout=15"
Dim oleConn As New OleDbConnection(connStr)
oleConn.Open()
Dim cmd As New OleDbCommand("Delete from TableName where ColoumnName=Condition", oleConn)
cmd.ExecuteNonQuery()
oleConn.Close()
End Sub

mdbFileLocate Such as c:\db.mdb
delete sql command such as delete from employees where employeeid=4

DELETE Query

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