These functions are powerful for analytical purposes such as ranking, aggregating, and comparing rows within a defined partition or window. Window functions are categorized mainly into aggregate ...

Functions SQL server functions are sets of SQL statements that execute a specific task. Their main use is in allowing common tasks to be easily replicated. The use of SQL server functions is similar ...

Understand PostgreSQL extensions Beyond standard SQL, PostgreSQL supports several advanced features: views, foreign keys, transactions, window functions, and schema inheritance.