Bind Analyzer for Db2 Modernization Guide

Bind Analyzer for Db2 analyzes program source code to identify SQL statement changes that would necessitate a Db2 bind. It compares the SQL in the recompiled program with the SQL in the previously bound version. If no significant SQL changes are detected, the bind process can be skipped, saving time and resources.

Bind Analyzer identifies changes to SQL statements, including modifications to table names, column names, predicates, and join conditions. It also detects changes in SQL syntax or the addition/removal of SQL statements.

The tool integrates with the Db2 precompile process. It analyzes the output of the precompiler to identify SQL statements. It then compares these statements with the SQL in the previously bound program, typically stored in Db2 catalog tables.

The core logic is implemented in COBOL or Assembler, leveraging Db2 call interfaces for catalog access. The user interface might be implemented using ISPF panels or a web-based interface.

The primary command is typically a batch job or TSO command that invokes the Bind Analyzer program. The syntax involves specifying the program name, Db2 subsystem ID, and options for controlling the analysis.

Configuration files specify Db2 connection parameters, catalog table names, and rules for determining significant SQL changes. These files are typically in a standard format like sequential datasets or PDS members.

Bind Analyzer accesses the Db2 catalog tables (e.g., SYSIBM.SYSPACKAGE, SYSIBM.SYSPACKSTMT) to retrieve information about previously bound SQL statements. It uses standard Db2 SQL queries to extract this information.

The tool generates reports that indicate whether a bind is required. These reports typically include details about the SQL changes detected, allowing users to assess the impact of the changes.

By reducing unnecessary Db2 binds, Bind Analyzer saves CPU resources, reduces elapsed time for application deployments, and minimizes disruption to Db2 systems.

The tool helps to streamline the application development lifecycle by automating the decision of whether a bind is required. This reduces manual effort and minimizes the risk of errors.

The tool provides detailed reports on SQL changes, enabling developers to understand the impact of their code changes on Db2 performance. This helps to optimize SQL and improve application performance.

Bind Analyzer leverages the existing Db2 security infrastructure. It uses the user ID under which it is running to access Db2 catalog tables. Access to the configuration files should be restricted to authorized personnel.

The tool does not typically handle sensitive data directly. However, the reports generated by the tool may contain SQL statements that include sensitive data. Access to these reports should be controlled.

The tool generates audit logs that record the analysis performed, including the program name, Db2 subsystem ID, and the decision of whether a bind is required. These logs can be used for auditing and compliance purposes.

Bind Analyzer is typically installed as part of the application development environment. The installation process involves copying the executable modules and configuration files to appropriate locations on z/OS.

The tool requires access to Db2 catalog tables. Ensure that the user ID under which the tool is running has the necessary privileges to access these tables. Also, ensure that the configuration files are properly configured.

The tool generates reports and audit logs. These outputs should be monitored to ensure that the tool is functioning correctly and that the bind decisions are appropriate. Any errors or warnings should be investigated promptly.