Progress0 of 0 lessons

CICS VERIFY PHRASE - Verify Phrase

CICS VERIFY PHRASE verifies a user phrase, enabling phrase management and output processing in CICS environments. It provides efficient phrase verification capabilities for CICS applications.

What is CICS VERIFY PHRASE?

CICS VERIFY PHRASE verifies a user phrase, enabling phrase management and output processing. It provides efficient phrase verification capabilities, allowing applications to verify user phrases.

Command Syntax

cobol
1
2
3
4
5
6
EXEC CICS VERIFY PHRASE USERID(user-id) PHRASE(phrase) [RESP(response-code)] [RESP2(response-code-2)] END-EXEC.

Parameters Explained

USERID Parameter

Specifies the user ID to verify phrase for:

  • Must be a valid user ID
  • Identifies specific user
  • Required for all VERIFY PHRASE operations
  • Must be active user

PHRASE Parameter

Specifies the phrase to verify:

  • Must be a valid phrase
  • Contains phrase to verify
  • Required for all VERIFY PHRASE operations
  • Must match user phrase

RESP Parameters

Response codes returned by the command:

  • RESP: Primary response code
  • RESP2: Secondary response code
  • Always check these codes for command success
  • Handle command failures appropriately

Phrase Types

1. Basic Phrases

  • Basic phrases: Basic phrases
  • Mapped phrases: Mapped phrases
  • Unmapped phrases: Unmapped phrases
  • Custom phrases: Custom phrases

2. Advanced Phrases

  • Advanced phrases: Advanced phrases
  • Secure phrases: Secure phrases
  • Encrypted phrases: Encrypted phrases
  • Compressed phrases: Compressed phrases

3. Specialized Phrases

  • Specialized phrases: Specialized phrases
  • High-performance phrases: High-performance phrases
  • Low-latency phrases: Low-latency phrases
  • High-throughput phrases: High-throughput phrases

Implementation Example

cobol
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
WORKING-STORAGE SECTION. 01 WS-RESPONSE PIC S9(8) COMP. 01 WS-RESPONSE2 PIC S9(8) COMP. 01 WS-USER-ID PIC X(8) VALUE 'USER001'. 01 WS-PHRASE PIC X(16) VALUE 'PHRASE123456789'. PROCEDURE DIVISION. * Verify user phrase EXEC CICS VERIFY PHRASE USERID(WS-USER-ID) PHRASE(WS-PHRASE) RESP(WS-RESPONSE) RESP2(WS-RESPONSE2) END-EXEC. IF WS-RESPONSE NOT EQUAL DFHRESP(NORMAL) EXEC CICS WRITE OPERATOR TEXT('VERIFY PHRASE command failed') END-EXEC EXEC CICS RETURN END-EXEC END-IF. * Phrase verified successfully * Continue processing

Phrase Processing

1. Phrase Preparation

Phrase preparation includes:

  • Phrase validation
  • Phrase formatting
  • Phrase encoding
  • Phrase processing

2. Phrase Transmission

Phrase transmission includes:

  • Phrase routing
  • Phrase delivery
  • Transmission confirmation
  • Error handling

3. Output Management

Output management includes:

  • User management
  • Output formatting
  • User experience
  • Performance optimization

Common Response Codes

Success Response Codes

  • NORMAL (0): Phrase verified successfully
  • VERIFY (4): Phrase verified

Error Response Codes

  • INVREQ (16): Invalid request
  • NOTFND (20): User not found
  • LENGERR (22): Length error
  • VERIFY (24): Verify error

Best Practices

1. Phrase Preparation

  • Prepare phrase appropriately
  • Validate phrase content
  • Handle different phrase types
  • Ensure phrase integrity

2. Error Handling

  • Check all response codes
  • Handle verify failures
  • Implement retry logic
  • Log error conditions

3. Performance Optimization

  • Minimize phrase verification
  • Use efficient phrase formats
  • Optimize user updates
  • Manage user resources

Explain It Like I'm 5 Years Old

Imagine you're checking if a secret word is correct:

When you want to check if a secret word is correct, you say the secret word and see if it matches what you're supposed to say. If the secret word matches, you can get into the secret club. If the secret word doesn't match, you can't get into the secret club.

CICS VERIFY PHRASE is like checking if a secret word is correct. The computer program says the phrase and sees if it matches what the user is supposed to say. If the phrase matches, the user can get into the system. If the phrase doesn't match, the user can't get into the system.

Just like you check if a secret word is correct, the computer program checks if a phrase is correct!

Exercises

Exercise 1: Phrase Verification

Write a CICS VERIFY PHRASE command to verify a user phrase.

cobol
1
2
3
4
5
6
EXEC CICS VERIFY PHRASE USERID(WS-USER-ID) PHRASE(WS-PHRASE) RESP(WS-RESPONSE) RESP2(WS-RESPONSE2) END-EXEC.

Exercise 2: Phrase Processing

How would you implement comprehensive phrase processing that handles different phrase types and requirements?

Answer: Identify different phrase types and appropriate handling, implement phrase validation and encoding, handle different phrase types and capabilities, implement proper error handling for phrase verification failures, optimize phrase verification for performance, and maintain phrase integrity throughout the process.

Quiz

Question 1

What is the primary purpose of CICS VERIFY PHRASE?

Answer: B) To verify a user phrase

Question 2

Which parameter specifies the user ID to verify phrase for?

Answer: A) USERID