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COBOL Tutorial

COBOL REVERSED Phrase - Quick Reference

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Overview

The REVERSED phrase in COBOL is used in report writer to reverse the direction of line or column output. It is useful for specialized reporting requirements, such as printing from bottom to top or right to left.

Purpose and Usage

  • Report Writer - Control the direction of line or column output
  • Specialized Reports - Print data in non-standard directions
  • Language Support - Support right-to-left languages
  • Custom Formatting - Meet unique business requirements

Syntax

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* Use LINE REVERSED in report writer
01  REPORT-GROUP TYPE DETAIL LINE REVERSED.
 
* Use COLUMN REVERSED in report writer
01  REPORT-GROUP TYPE DETAIL COLUMN REVERSED.
 
* Example report group
01  SALES-REPORT TYPE DETAIL LINE REVERSED.
    03  SALES-AMOUNT    PIC 9(7)V99.
    03  SALES-REGION    PIC X(10).
 
* Note: REVERSED is not used for string manipulation; use FUNCTION REVERSE for that purpose.

Use REVERSED in report writer to control output direction. Not all compilers support this feature.

Test Your Knowledge

1. What is the primary use of the REVERSED phrase in COBOL?

  • To reverse the order of lines or columns in report output
  • To reverse the order of characters in a string
  • To reverse arithmetic operations
  • To reverse the program flow

2. Where is REVERSED most commonly used in COBOL?

  • INSPECT statement
  • Report writer LINE or COLUMN clauses
  • PERFORM statement
  • READ statement

3. Is REVERSED supported in all COBOL compilers?

  • Yes
  • No
  • Only in mainframe COBOL
  • Only in modern COBOL

4. Which of the following is a valid use of REVERSED?

  • LINE REVERSED
  • COLUMN REVERSED
  • BOTH
  • Neither

5. What is the effect of using LINE REVERSED in a report?

  • Lines are printed from bottom to top
  • Lines are printed from top to bottom
  • Columns are reversed
  • No effect

Frequently Asked Questions

Related Concepts

Report Writer

COBOL report writer concepts.

LINE Clause

How to use LINE in report writer.

COLUMN Clause

How to use COLUMN in report writer.

Custom Formatting

Formatting data for display.

FUNCTION REVERSE

Reversing strings in COBOL.

REVERSEREVERSE-VIDEO