Script para cuando hay que anular una factura y borrarla.

1. Anular la factura en el POS.
2. Borra de Ventas
   si hay pago:
   DELETE FROM VENPAGOVALORES ?
   DELETE FROM VENPAGODOCUMENTOS ?
   DELETE FROM VENPAGO ?

   DELETE FROM vendetfactura WHERE documento=260;
   DELETE FROM venfactura WHERE documento=260;

3. Borra de CXC
   si hay pago
   DELETE FROM CXC_DET_PAGO_NOTA WHERE ?
   DELETE FROM CXC_ENC_PAGONOTA WHERE ?

   DELETE FROM CXC_OBLIGACION WHERE DOC_REF=260;
   DELETE FROM CXC_ENC_MOVIMIENTO WHERE NUM_DOC=260;
 
4. Alterar el consecutivo
5. Ingresar la factura
6. Corregir el consecutivo