I do not insert the [closed] record

When I insert it, it appears that it was successfully added but when reviewing the database it does not show the inserted record.
My code is as follows:

Dim qryInsert As String = "INSERT INTO sadcc (cc_grupo_compras,cc_nombre_comprador,cc_correo,cc_unidad)" & _
                                                        " VALUES('" & TxtNoComp.Text & "','" & TxtNombre.Text & "','" & TxtCorreo.Text & "','" & DdlCentro.SelectedValue & "')"

Does anyone know what this error is?