[0theghost0]

الرجاء رؤية الاكواد هل هي صحيحة او في شيء غلط ؟

كود :

conn.Open()

       Using cmd As New OleDbCommand("DROP Index PrimaryKey ON Customer", conn)

       End Using
       Using cmd As New OleDbCommand("ALTER TABLE Customer DROP COLUMN Cus_ID", conn)

       End Using

       Using cmd As New OleDbCommand("alter table Customer ADD Cus_ID int identity", conn)

       End Using

       Using cmd As New OleDbCommand("ALTER TABLE Customer ADD PRIMARY KEY (Cus_ID)", conn)
           cmd.ExecuteNonQuery()
       End Using

       conn.Close()