Notice: Undefined index: asiento in C:\Apache24\htdocs\real\ventas\borracomcob.php on line 70

Notice: Undefined index: codprov in C:\Apache24\htdocs\real\ventas\borracomcob.php on line 71
Error: SQLSTATE[42000]: [Microsoft][ODBC Driver 17 for SQL Server][SQL Server]Incorrect syntax near '='.