Easytrieve Modernization Guide

Easytrieve is a programming language designed for report generation and data management. It simplifies data access, manipulation, and reporting tasks, making it accessible to users with varying levels of technical expertise.

Easytrieve supports various data sources, including sequential files, VSAM files, and databases such as Adabas, DB2, CA Datacom/DB, IMS, and IDMS. This allows users to generate reports from diverse data environments.

Easytrieve can be used in TSO/E and CICS environments to generate and view reports online. This provides users with real-time access to data and reporting capabilities.

The Easytrieve Plus version enhances the original Easytrieve Classic by adding features and capabilities for more advanced data processing and reporting.

Common Easytrieve commands include FILE for defining input files, JOB for defining a job, REPORT for specifying report layouts, SORT for sorting data, and IF/THEN/ELSE for conditional logic.

A basic FILE definition syntax is: FILE filename, ORGANIZATION = type, DDNAME = ddname. A basic REPORT definition is: REPORT reportname, TITLE = 'Report Title', DETAIL field1, field2.

Easytrieve uses configuration files such as PARMLIB members to define system options and parameters. JCL (Job Control Language) is used to execute Easytrieve jobs.

Easytrieve can invoke other programs using the SYSTEM command. For example: SYSTEM 'PGM=program_name,PARM=parameters'.

Easytrieve simplifies report generation, reducing the time and effort required to create reports from various data sources. This allows businesses to quickly access and analyze data for decision-making.

By providing an easy-to-use language, Easytrieve enables users with limited programming experience to generate reports, reducing the reliance on specialized IT staff.

Easytrieve supports integration with various databases and file systems, allowing businesses to leverage existing data infrastructure for reporting purposes.

Easytrieve leverages the security features of the underlying z/OS, z/VM, and zVSE/VSEn platforms. Access to data and system resources is controlled through these platform-level security mechanisms.

User management is handled through the security systems of the host operating system (e.g., RACF on z/OS). Easytrieve uses these systems for authentication and authorization.

Auditing and logging are performed through the host operating system's facilities. Easytrieve jobs and activities can be tracked using these logs.

Easytrieve jobs are typically submitted through JCL (Job Control Language) on z/OS. Monitoring can be performed using standard z/OS monitoring tools and logs.

Configuration parameters are set in PARMLIB members and JCL. These parameters control various aspects of Easytrieve's behavior, such as memory allocation and data access methods.

Easytrieve leverages the operational capabilities of the host operating system, such as scheduling, resource management, and security. This ensures that Easytrieve jobs are executed efficiently and securely.