How do you use CICS RUN?

Use CICS RUN with RESP parameters to check response codes and handle any errors appropriately.

What are the different types of runs?

Run types include basic runs (standard, mapped, unmapped, custom), advanced runs (advanced, secure, encrypted, compressed), and specialized runs (specialized, high-performance, low-latency, high-throughput).

When should you use CICS RUN?

Use CICS RUN when building applications that need run management capabilities, when implementing run processing, when managing runs, when building run systems, or when implementing run functionality.

CICS RUN - Run

CICS RUN provides run management capabilities, enabling run processing and output processing in CICS environments. It provides efficient run capabilities for CICS applications.

What is CICS RUN?

CICS RUN provides run management capabilities, enabling run processing and output processing. It provides efficient run capabilities, allowing applications to manage run operations.

Command Syntax

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EXEC CICS RUN
    [RESP(response-code)]
    [RESP2(response-code-2)]
END-EXEC.

Parameters Explained

RESP Parameters

Response codes returned by the command:

RESP: Primary response code - indicates the success or failure of the run operation
RESP2: Secondary response code - provides additional error information when RESP indicates failure
Always check these codes for command success before proceeding with data processing
Handle command failures appropriately to prevent application errors

Run Types

1. Basic Runs

Basic runs: Standard run operations that handle simple running without special formatting
Mapped runs: Run operations that use predefined field mappings to structure run data
Unmapped runs: Raw run operations that handle unstructured running without predefined field mappings
Custom runs: Specialized run operations designed for specific application requirements

2. Advanced Runs

Advanced runs: Complex run operations that handle sophisticated running processing and validation
Secure runs: Run operations that include encryption and security features for sensitive running
Encrypted runs: Run operations that automatically encrypt run data
Compressed runs: Run operations that handle compressed running streams and automatically compress run data

3. Specialized Runs

Specialized runs: Run operations tailored for specific protocols or communication methods
High-performance runs: Optimized run operations designed for maximum throughput and efficiency
Low-latency runs: Run operations optimized for minimal delay and real-time processing requirements
High-throughput runs: Run operations designed to handle large volumes of running efficiently

Implementation Example

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WORKING-STORAGE SECTION.
01 WS-RESPONSE            PIC S9(8) COMP.
01 WS-RESPONSE2           PIC S9(8) COMP.
 
PROCEDURE DIVISION.
    * Run operation
    EXEC CICS RUN
        RESP(WS-RESPONSE)
        RESP2(WS-RESPONSE2)
    END-EXEC.
    
    IF WS-RESPONSE NOT EQUAL DFHRESP(NORMAL)
        EXEC CICS WRITE OPERATOR
            TEXT('RUN command failed')
        END-EXEC
        EXEC CICS RETURN END-EXEC
    END-IF.
    
    * Run operation completed successfully
    * Continue processing

Run Processing

1. Run Preparation

Run preparation includes:

Run validation - ensuring the run operation is properly configured and authorized
Run formatting - preparing data structures and buffers for run data
Run encoding - setting up proper character encoding and data transformation
Run processing - initializing the run operation and preparing for running

2. Run Transmission

Run transmission includes:

Run routing - directing run data to the appropriate processing location
Run delivery - ensuring run data reaches the correct destination within the application
Transmission confirmation - verifying that run was completed successfully
Error handling - managing transmission failures and implementing retry mechanisms

3. Output Management

Output management includes:

User management - handling user sessions and maintaining connection state
Output formatting - structuring run data for presentation or further processing
User experience - ensuring smooth data flow and responsive application behavior
Performance optimization - maximizing run efficiency and minimizing resource usage

Common Response Codes

Success Response Codes

NORMAL (0): Run operation completed successfully - running was completed without errors
RUN (4): Run operation completed - operation completed with run-specific status

Error Response Codes

INVREQ (16): Invalid request - the run operation parameters are incorrect or unauthorized
NOTFND (20): Resource not found - the specified run resource does not exist
LENGERR (22): Length error - the run data length exceeds expected limits
RUN (24): Run error - a run-specific error occurred during the operation

Best Practices

1. Run Preparation

Prepare run appropriately - ensure all necessary resources and configurations are in place
Validate run content - verify that run data meets expected format and quality standards
Handle different run types - implement flexible processing to accommodate various running formats
Ensure run integrity - maintain data consistency and prevent corruption during running

2. Error Handling

Check all response codes - always examine both RESP and RESP2 for complete error information
Handle run failures - implement appropriate recovery mechanisms for failed run operations
Implement retry logic - provide automatic retry capabilities for transient failures
Log error conditions - maintain detailed logs for troubleshooting and monitoring purposes

3. Performance Optimization

Minimize run operations - reduce unnecessary run calls to improve overall performance
Use efficient run formats - choose appropriate data formats to minimize processing overhead
Optimize user updates - streamline user interface updates to reduce response time
Manage user resources - efficiently allocate and manage system resources for run operations

Explain It Like I'm 5 Years Old

Imagine you're starting to run:

When you want to start running, you start moving your legs and running. If you start running, you move fast. If you don't start running, you stay still.

CICS RUN is like starting to run. The computer program starts moving data and running. If it starts running, it moves data fast. If it doesn't start running, it stays still.

Just like you start running, the computer program starts running!

Exercises

Exercise 1: Run Operation

Write a CICS RUN command to perform a run operation.

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EXEC CICS RUN
    RESP(WS-RESPONSE)
    RESP2(WS-RESPONSE2)
END-EXEC.

Exercise 2: Run Processing

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

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

Quiz

Question 1

What is the primary purpose of CICS RUN?

A) To format runsB) To provide run management capabilitiesC) To validate runsD) To edit runs

Answer: B) To provide run management capabilities

Question 2

Which parameter specifies the response code?

A) RESPB) RESPONSEC) CODED) RUN

Answer: A) RESP

CICS RUN - Run

What is CICS RUN?

Command Syntax

Parameters Explained

RESP Parameters

Run Types

1. Basic Runs

2. Advanced Runs

3. Specialized Runs

Implementation Example

Run Processing

1. Run Preparation

2. Run Transmission

3. Output Management

Common Response Codes

Success Response Codes

Error Response Codes

Best Practices

1. Run Preparation

2. Error Handling

3. Performance Optimization

Explain It Like I'm 5 Years Old

Exercises

Exercise 1: Run Operation

Exercise 2: Run Processing

Quiz

Question 1

Question 2

Related Concepts

CICS Run Processing

CICS User Management

CICS Output Processing

Related Pages