how to look for a field in different tables in vb.net using query

I Have a query in which i want to search in all the table for a common field using query below ismy code----

Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
     Try
         'Dim da As OleDb.OleDbDataAdapter
         Dim dbprovider As String = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\Users\Taher\Documents\Visual Studio 2010\Projects\WindowsApplication1\WindowsApplication1\Database1.accdb;Persist Security Info=False;"
         Me.con = New OleDb.OleDbConnection
         Dim sqlquery As String = "SELECT * FROM **mba mca mscit** WHERE urno='" & TextBox2.Text & "';"
         Dim command As New OleDb.OleDbCommand(sqlquery, con)
         Dim reader As OleDb.OleDbDataReader
         con.ConnectionString = dbprovider
         con.Open()

         reader = command.ExecuteReader()
         reader.Read()
         TextBox1.Text = reader(1).ToString
         TextBox2.Text = reader(2).ToString
         TextBox3.Text = reader(3).ToString
         TextBox4.Text = reader(4).ToString
         TextBox5.Text = reader(5).ToString
     Catch ex As Exception
         MsgBox("Not Found")
         con.Close()
     End Try

i want to search for urno in all the tables which have the fields in them with the same name....?

Tags: Visual Basic, SQL