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How to read any string from access database using adodb

Vishal I. Sahuji asked:

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I want to read string from one column but when i try this one i got error that is "Data type mismatch in criteria expression."
cmdOLEDB.CommandText = "SELECT usern FROM Aut WHERE usern=" & textbox1.Text
cmdOLEDB.Connection = cnnOLEDB
Dim rdrOLEDB As OleDbDataReader = cmdOLEDB.ExecuteReader
If rdrOLEDB.Read = True Then
MsgBox("Record found")
rdrOLEDB.Close()
Exit Sub
Else
MsgBox("Record not found")
rdrOLEDB.Close()
Exit Sub
End If
Tags: VB, VB.NET

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