Microsoft Access AIS

Microsoft Access AIS

1) For identification of costing or billing errors, we developed a query that checks whether the billing system has included the minutes from weekend calls and evening calls. If the system included the entry such as using plan minutes on weekends which starts from Friday till Monday morning. Also the night minutes that are unlimited should not be charged. By using a query we gathered the data of all calls that are been made during the night and weekend offer to check whether it has charged the plan minutes or not. Two queries were made to test ...