Exam 15: Control-Break Processing

Given the following pseudocode: Start FINAL-ACCUM $= 0$ NAME-ACCUM $= 0$ Read NAME, AMT SAVE-NAME = NAME DOWHILE not EOF IF NAME $\neq$ SAVE-NAME THEN Write NAME-ACCUM FINAL-ACCUM = FINAL-ACCUM + NAME-ACCUM NAME-ACCUM $= 0$ (ELSE) ENDIF Write NAME, AMT NAME-ACCUM $=$ NAME-ACCUM + AMT Read NAME, AMT ENDDO Write FINAL-ACCUM Stop How many lines will be output if the following records are input? John     20.00 John     30.00 Mary     10.00 Mary     6.00 Sue       8.00 Sue       5.00

In control-break processing,the input records must be in some type of sequence.

What type of report outputs one line of information for each input record processed?

An intermediate total and a final total can be computed using the same accumulator.

Given the following pseudocode: Start FINAL-ACCUM $= 0$ NAME-ACCUM $= 0$ Read NAME, AMT SAVE-NAME $=$ NAME DOWHILE not EOF IF NAME $\neq$ SAVE-NAME THEN Write NAME-ACCUM FINAL-ACCUM = FINAL-ACCUM + NAME-ACCUM NAME-ACCUM $= 0$ ELSE Write NAME, AMT NAME-ACCUM $=$ NAME-ACCUM $+ \mathrm { AMT }$ ENDIF Read NAME, AMT ENDDO Write FINAL-ACCUM Stop How many lines will be output if the following records are input? John     20.00 John     30.00 Mary     10.00 Mary      6.00 Sue      8.00 Sue      5.00

We know that a control break has occurred when the last detail record in a group is processed.

An intermediate total reflects accumulated data about all the input records.

The detail-processing module is called each time the main processing loop is executed.

It is always better to output a detail-printed report since this type of report contains the most information.

A detail-printed report only outputs detail lines.