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The architecture of Db2 SQL Performance Analyzer consists of several key components designed to facilitate SQL query optimization. The SQL Parser is responsible for parsing the SQL statements and validating their syntax. The Optimizer Simulator uses the parsed SQL and database statistics to simulate the query execution plan.
The Report Generator creates detailed performance reports based on the simulation results. The Configuration Manager handles the tool's settings, including database connection details and report output formats. These components communicate through a defined internal interface.
The tool interacts with the Db2 database on z/OS, using the Db2 catalog and system tables to gather information about database objects and query execution plans. The primary interface is the command-line interface (CLI). The tool does not expose external APIs.
The tool integrates with Db2's auditing and logging features. The tool's design emphasizes efficiency and ease of use, providing a comprehensive solution for SQL query optimization.
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