The ROW_NUMBER() function in SQL is a window function that assigns a unique sequential integer to rows within a partition of a result set. It's commonly used for tasks like numbering rows, ranking ...

It is a SQL practice repository covering basics to advanced topics. It includes exercises on SELECT statements, WHERE clauses, GROUP BY, JOINS, window functions (OVER(), PARTITION BY), ROW_NUMBER(), ...

In 2016, the SQL standard introduced MATCH_RECOGNIZE for row pattern recognition. Many relational systems support it with Non-Deterministic Finite Automaton (NFA). However, for historical data ...

In 2016, the SQL standard introduced MATCH_RECOGNIZE for row pattern recognition. Many relational systems support it with Non-Deterministic Finite Automaton (NFA). However, for historical data ...