A query analyzer is a tool or component of a database management system (DBMS) or data analysis platform that examines and interprets database queries (typically written in SQL or a similar query language). It analyzes the query's syntax, semantics, and structure to understand what data is being requested and how to retrieve it efficiently. Query analyzers often perform tasks such as syntax validation, query optimization (finding the most efficient execution plan), security checks, and data lineage tracking. They are crucial for ensuring query correctness, performance, and security in database environments.
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