What is CICS BIF DEEDIT command used for?

CICS BIF DEEDIT is used to edit and validate data fields, providing data cleaning, formatting, and validation capabilities for CICS applications.

What types of data editing are available?

Editing types include numeric editing (validation, decimal, integer, format), text editing (validation, character, string, alphanumeric), date editing (validation, formatting, time, timestamp), and special editing (currency, percentage, phone, email).

How do I handle errors with CICS BIF DEEDIT?

Always check the response code and implement appropriate error handling, including validation of edit requests, retry mechanisms for failed operations, and fallback procedures for edit errors.

What is the purpose of data editing?

Data editing enables field validation, data formatting, data cleaning, standardization, and quality improvement by processing and validating data fields in CICS applications.

When should I use CICS BIF DEEDIT?

Use this command when you need to validate input data, format data fields, clean data, standardize data formats, or ensure data quality in CICS applications.

CICS BIF DEEDIT - Data Editing and Validation

CICS BIF DEEDIT provides data editing and validation capabilities for programs and transactions. It enables programs to edit data fields, validate input, and handle data editing operations in CICS environments.

What is CICS BIF DEEDIT?

CICS BIF DEEDIT is a Built-In Function (BIF) that allows programs to edit and validate data fields. It provides data editing capabilities, field validation, and data formatting for CICS applications.

Command Syntax

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EXEC CICS BIF DEEDIT
    FIELD(field-name)
    [LENGTH(field-length)]
    [RESP(response-code)]
END-EXEC

Parameters

Required Parameters

FIELD(field-name) - Name of the field to edit

Optional Parameters

LENGTH(field-length) - Length of the field to edit
RESP(response-code) - Response code variable

Data Editing Types

Numeric Editing

Editing numeric data fields

• NUMERIC VALIDATION - Validate numeric fields
• DECIMAL EDITING - Edit decimal numbers
• INTEGER EDITING - Edit integer values
• FORMAT EDITING - Format numeric data

Text Editing

Editing text data fields

• TEXT VALIDATION - Validate text fields
• CHARACTER EDITING - Edit character data
• STRING EDITING - Edit string values
• ALPHANUMERIC EDITING - Edit alphanumeric data

Date Editing

Editing date data fields

• DATE VALIDATION - Validate date fields
• DATE FORMATTING - Format date values
• TIME EDITING - Edit time values
• TIMESTAMP EDITING - Edit timestamp values

Special Editing

Editing special data types

• CURRENCY EDITING - Edit currency values
• PERCENTAGE EDITING - Edit percentage values
• PHONE EDITING - Edit phone numbers
• EMAIL EDITING - Edit email addresses

Programming Examples

Basic Data Editing

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       IDENTIFICATION DIVISION.
       PROGRAM-ID. DEEDIT01.
       DATA DIVISION.
       WORKING-STORAGE SECTION.
       01  INPUT-FIELD     PIC X(20) VALUE '  123.45  '.
       01  FIELD-LENGTH    PIC S9(8) COMP VALUE 20.
       01  RESPONSE-CODE   PIC S9(8) COMP.
       01  EDIT-NEEDED     PIC X(1) VALUE 'Y'.
       
       PROCEDURE DIVISION.
           IF EDIT-NEEDED = 'Y'
               DISPLAY 'Editing field data...'
               
               EXEC CICS BIF DEEDIT
                   FIELD(INPUT-FIELD)
                   LENGTH(FIELD-LENGTH)
                   RESP(RESPONSE-CODE)
               END-EXEC
               
               IF RESPONSE-CODE = DFHRESP(NORMAL)
                   DISPLAY 'Field edited successfully'
                   DISPLAY 'Edited field: ' INPUT-FIELD(1:FIELD-LENGTH)
               ELSE
                   DISPLAY 'Failed to edit field'
               END-IF
           ELSE
               DISPLAY 'No editing needed'
           END-IF
           
           EXEC CICS RETURN END-EXEC.

Advanced Data Editing

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       IDENTIFICATION DIVISION.
       PROGRAM-ID. DEEDIT02.
       DATA DIVISION.
       WORKING-STORAGE SECTION.
       01  NUMERIC-FIELD   PIC X(15) VALUE '  1,234.56  '.
       01  TEXT-FIELD      PIC X(20) VALUE '  Hello World  '.
       01  DATE-FIELD      PIC X(10) VALUE '  12/25/2023  '.
       01  FIELD-LENGTH    PIC S9(8) COMP VALUE 15.
       01  RESPONSE-CODE   PIC S9(8) COMP.
       01  EDIT-TYPE       PIC X(1).
       01  EDIT-COUNT      PIC S9(2) COMP VALUE 0.
       
       PROCEDURE DIVISION.
           PERFORM EDIT-NUMERIC-FIELD
           PERFORM EDIT-TEXT-FIELD
           PERFORM EDIT-DATE-FIELD
           
           EXEC CICS RETURN END-EXEC.
       
       EDIT-NUMERIC-FIELD.
           MOVE 'N' TO EDIT-TYPE
           MOVE 15 TO FIELD-LENGTH
           
           EXEC CICS BIF DEEDIT
               FIELD(NUMERIC-FIELD)
               LENGTH(FIELD-LENGTH)
               RESP(RESPONSE-CODE)
           END-EXEC
           
           IF RESPONSE-CODE = DFHRESP(NORMAL)
               ADD 1 TO EDIT-COUNT
               DISPLAY 'Numeric field edited: ' NUMERIC-FIELD(1:FIELD-LENGTH)
           END-IF.
       
       EDIT-TEXT-FIELD.
           MOVE 'T' TO EDIT-TYPE
           MOVE 20 TO FIELD-LENGTH
           
           EXEC CICS BIF DEEDIT
               FIELD(TEXT-FIELD)
               LENGTH(FIELD-LENGTH)
               RESP(RESPONSE-CODE)
           END-EXEC
           
           IF RESPONSE-CODE = DFHRESP(NORMAL)
               ADD 1 TO EDIT-COUNT
               DISPLAY 'Text field edited: ' TEXT-FIELD(1:FIELD-LENGTH)
           END-IF.
       
       EDIT-DATE-FIELD.
           MOVE 'D' TO EDIT-TYPE
           MOVE 10 TO FIELD-LENGTH
           
           EXEC CICS BIF DEEDIT
               FIELD(DATE-FIELD)
               LENGTH(FIELD-LENGTH)
               RESP(RESPONSE-CODE)
           END-EXEC
           
           IF RESPONSE-CODE = DFHRESP(NORMAL)
               ADD 1 TO EDIT-COUNT
               DISPLAY 'Date field edited: ' DATE-FIELD(1:FIELD-LENGTH)
           END-IF.
       
       DISPLAY-RESULTS.
           DISPLAY 'Total fields edited: ' EDIT-COUNT.

Error Handling with Data Editing

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       IDENTIFICATION DIVISION.
       PROGRAM-ID. DEEDIT03.
       DATA DIVISION.
       WORKING-STORAGE SECTION.
       01  INPUT-FIELD     PIC X(20) VALUE 'Invalid Data'.
       01  FIELD-LENGTH    PIC S9(8) COMP VALUE 20.
       01  RESPONSE-CODE   PIC S9(8) COMP.
       01  RETRY-COUNT    PIC S9(2) COMP VALUE 0.
       01  MAX-RETRIES    PIC S9(2) COMP VALUE 3.
       
       PROCEDURE DIVISION.
           PERFORM EDIT-WITH-ERROR-HANDLING
           
           EXEC CICS RETURN END-EXEC.
       
       EDIT-WITH-ERROR-HANDLING.
           PERFORM EDIT-FIELD
           
           IF RESPONSE-CODE NOT = DFHRESP(NORMAL)
               AND RETRY-COUNT < MAX-RETRIES
               ADD 1 TO RETRY-COUNT
               DISPLAY 'Retry ' RETRY-COUNT ' editing field'
               PERFORM EDIT-WITH-ERROR-HANDLING
           END-IF.
       
       EDIT-FIELD.
           EXEC CICS BIF DEEDIT
               FIELD(INPUT-FIELD)
               LENGTH(FIELD-LENGTH)
               RESP(RESPONSE-CODE)
           END-EXEC
           
           EVALUATE RESPONSE-CODE
               WHEN DFHRESP(NORMAL)
                   DISPLAY 'Field edited successfully'
               WHEN DFHRESP(INVREQ)
                   DISPLAY 'Invalid edit request'
               WHEN DFHRESP(LENGERR)
                   DISPLAY 'Field length error'
               WHEN DFHRESP(DATAERR)
                   DISPLAY 'Data format error'
               WHEN DFHRESP(VALIDERR)
                   DISPLAY 'Validation error'
               WHEN OTHER
                   DISPLAY 'Unexpected error occurred'
           END-EVALUATE.

Data Editing Management

Field Validation

• Data Validation - Validate field data
• Format Validation - Validate data format
• Range Validation - Validate data ranges
• Type Validation - Validate data types

Data Formatting

• Format Application - Apply data formats
• Format Standardization - Standardize formats
• Format Conversion - Convert data formats
• Format Optimization - Optimize formats

Data Cleaning

• Data Cleaning - Clean field data
• Whitespace Removal - Remove whitespace
• Character Normalization - Normalize characters
• Data Standardization - Standardize data

Error Recovery

• Error Detection - Detect edit errors
• Error Recovery - Recover from edit errors
• Retry Mechanisms - Implement retry logic
• Fallback Procedures - Use fallback procedures

Error Handling

Common Response Codes

DFHRESP(NORMAL) - Field edited successfully
DFHRESP(INVREQ) - Invalid edit request
DFHRESP(LENGERR) - Field length error
DFHRESP(DATAERR) - Data format error
DFHRESP(VALIDERR) - Validation error
DFHRESP(NOTAUTH) - Not authorized to edit

Performance Considerations

Editing Efficiency

• Optimize edit operations - Use efficient edit patterns
• Minimize edit overhead - Reduce edit processing overhead
• Use appropriate edit types - Choose appropriate edit methods
• Monitor edit frequency - Track edit occurrence patterns

System Impact

• Monitor system impact - Track how edits affect the system
• Optimize edit handling - Ensure efficient edit processing
• Manage resource usage - Monitor resource consumption
• Track performance metrics - Monitor edit handling performance

Best Practices

Data Editing Best Practices

• Use appropriate edit functions for data types
• Implement proper validation before editing
• Handle edit errors gracefully
• Validate edited data after processing
• Use consistent edit patterns
• Monitor edit success rates
• Maintain edit audit trails

Explain It Like I'm 5 Years Old

Think of CICS BIF DEEDIT like cleaning up your writing:

• Messy Writing: "Your writing is messy and hard to read" - Unedited data
• Clean It Up: "Clean up your writing" - Edit the data
• Make It Pretty: "Make it look nice and neat" - Format the data
• Check It: "Make sure it's correct" - Validate the data
• All Done: "Now it looks perfect" - Edited data

Exercises

Exercise 1: Basic Data Editing

Create a program that edits numeric and text fields using BIF DEEDIT.

Exercise 2: Advanced Field Editing

Write a program that edits different types of fields with proper validation.

Exercise 3: Error Handling

Implement comprehensive error handling for data editing failures.

CICS BIF DEEDIT - Data Editing and Validation

What is CICS BIF DEEDIT?

Command Syntax

Parameters

Required Parameters

Optional Parameters

Data Editing Types

Numeric Editing

Text Editing

Date Editing

Special Editing

Programming Examples

Basic Data Editing

Advanced Data Editing

Error Handling with Data Editing

Data Editing Management

Field Validation

Data Formatting

Data Cleaning

Error Recovery

Error Handling

Common Response Codes

Performance Considerations

Editing Efficiency

System Impact

Best Practices

Data Editing Best Practices

Explain It Like I'm 5 Years Old

Exercises

Exercise 1: Basic Data Editing

Exercise 2: Advanced Field Editing

Exercise 3: Error Handling

Related Concepts

Data Validation

Field Management

Data Formatting

Built-In Functions

Error Handling

Related Pages