Query
A query is a request to a database or search engine. In SQL it usually starts with SELECT. Queries can be filtered (WHERE), sorted (ORDER BY) and joined (JOIN). A good query uses indexes and returns only the needed data.
A query is a request to a database or search engine. In SQL it usually starts with SELECT. Queries can be filtered (WHERE), sorted (ORDER BY) and joined (JOIN). A good query uses indexes and returns only the needed data.