CIS 111 Control break processing

• Create a control break report

• a control break is a change in a key field that triggers special processing
• one example is printing totals for each department in a report
• in that case, every change in the department field would trigger a total to print
• if there is more than one level of control break, the term is level break
• a higher priority level break causes an automatic break in all levels below it
• for example, a department break would also trigger an employee break
• level breaks work by comparing a current field value to the previous field value
• the previous field value must be set to the current value at the end of the record processing loop
• the first record usually shouldn;t trigger a level break
• a forced level break is often required after the last record is processed

prevDept = "???" departmentTotal = 0 grandTotal = 0 recordNumber = 0 open report file output report headers to report file open the data file for each record in the data file recordNumber++ if department != prevDept and recordNumber != 1 output departmentTotal to report file add departmentTotal to grandTotal departmentTotal = 0 output record details to report file prevDept = department close data file output departmentTotal to report file add departmentTotal to grandTotal output grandTotal to report file output report footers to report file close report file