spørringsplanleggeren
The Norwegian term "spørringsplanleggeren" translates to "query planner" in English. It is a fundamental component of database management systems (DBMS) responsible for determining the most efficient way to execute a given SQL query. When a user submits a query, the query planner analyzes it, considering various execution strategies.
The query planner's primary goal is to minimize the resources, such as CPU time and I/O operations,
To make these decisions, the query planner relies on statistics about the data stored in the database,
The effectiveness of the query planner significantly impacts the overall performance of a database. A well-optimized