Compaq COBOL AAQ2G1FTK User Manual page 8

9 Using the SORT and MERGE Statements
9.1 Sorting Data with the SORT Statement . . . . . . . . . . . . . . . . . . . . . . . . . .
9.1.1 File Organization Considerations for Sorting . . . . . . . . . . . . . . . . . . . .
9.1.2 Specifying Sort Parameters with the ASCENDING and
DESCENDING KEY Phrases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Resequencing Files with the USING and GIVING Phrases . . . . . . . . .
9.1.3
9.1.4 Manipulating Data Before and After Sorting with the INPUT
PROCEDURE and OUTPUT PROCEDURE Phrases . . . . . . . . . . . . . .
9.1.5 Maintaining the Input Order of Records Using the WITH
DUPLICATES IN ORDER Phrase . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifying Non-ASCII Collating Sequences with the COLLATING
9.1.6
SEQUENCE IS Alphabet-Name Phrase . . . . . . . . . . . . . . . . . . . . . . . .
9.1.7 Multiple Sorting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.1.8 Sorting Variable-Length Records . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.1.9 Preventing I/O Aborts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.1.10 Sorting Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sorting at the Operating System Level . . . . . . . . . . . . . . . . . . . . . . . .
9.1.11
9.2 Merging Data with the MERGE Statement . . . . . . . . . . . . . . . . . . . . . . . .
9.3 Sample Programs Using the SORT and MERGE Statements . . . . . . . . . .
10 Producing Printed Reports
Designing a Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10.1
10.2 Components of a Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10.3 Accumulating and Reporting Totals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10.4 The Logical Page and the Physical Page . . . . . . . . . . . . . . . . . . . . . . . . . .
10.5 Programming a Conventional File Report . . . . . . . . . . . . . . . . . . . . . . . . .
Defining the Logical Page in a Conventional Report . . . . . . . . . . . . . .
10.5.1
Controlling the Spacing in a Conventional Report . . . . . . . . . . . . . . . .
10.5.2
10.5.3 Advancing to the Next Logical Page in a Conventional Report . . . . . .
10.5.3.1 Programming for the Page-Overflow Condition in a Conventional
Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10.5.3.2 Using a Line Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Printing the Conventional Report . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10.5.4
A Conventional File Report Example . . . . . . . . . . . . . . . . . . . . . . . . . .
10.5.5
10.6 Programming a Linage-File Compaq COBOL Report . . . . . . . . . . . . . . . . .
10.6.1 Defining the Logical Page in a Linage-File Report . . . . . . . . . . . . . . . .
10.6.2 Controlling the Spacing in a Linage-File Report . . . . . . . . . . . . . . . . .
10.6.3 Using the LINAGE-COUNTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Advancing to the Next Logical Page in a Linage-File Report . . . . . . . .
10.6.4
Programming for the End-of-Page and Page-Overflow Condition . . . . .
10.6.5
10.6.6 Printing a Linage-File Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10.6.7 A Linage-File Report Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10.7 Modes for Printing Reports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10.7.1 Directly Allocating a Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Spooling to a Mass Storage Device . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10.7.2
Programming a Report Writer Report . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10.8
10.8.1 Using the REPORT Clause in the File Section . . . . . . . . . . . . . . . . . .
10.8.2 Defining the Report Section and the Report File . . . . . . . . . . . . . . . . .
10.8.3 Defining a Report Writer Logical Page with the PAGE Clause . . . . . .
Describing Report Group Description Entries . . . . . . . . . . . . . . . . . . .
10.8.4
Vertical Spacing for the Logical Page . . . . . . . . . . . . . . . . . . . . . . . . . .
10.8.5
10.8.6 Horizontal Spacing for the Logical Page . . . . . . . . . . . . . . . . . . . . . . .
10.8.7 Assigning a Value in a Print Line . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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