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我正在使用Visual Basic 2010 Express和Access 2003. 我正在嘗試將sql查詢添加到mdb文件。我正在使用OLEDBConnection。 Select查詢工作正常,但我無法在表格中插入行。這是代碼。使用OLEDBConnection將新記錄插入到使用Visual Basic的表格中
Dim connStr As String = "provider=Microsoft.Jet.OLEDB.4.0;data source=" & System.IO.Directory.GetCurrentDirectory() & "\tpv.mdb;"
Dim con As New OleDb.OleDbConnection(connStr)
con.Open()
Dim query As String = "select * from Productos"
Dim cmd As New OleDb.OleDbCommand(query, con)
Dim reader As OleDb.OleDbDataReader
reader = cmd.ExecuteReader
While reader.Read()
MsgBox(reader.GetValue(0) & ", " & reader.GetValue(1) & " , " & reader.GetValue(2))
End While
reader.Close()
query = "insert into Productos (NombreProducto,PrecioCoste) VALUES ('cana',4)"
Dim cmd2 As New OleDb.OleDbCommand(query, con)
cmd.ExecuteNonQuery()
con.Close()
爲什麼INSERT查詢不起作用?