Aggregate Functions
Aggregate functions perform a calculation on a set of values and return a single value. These functions are particularly useful when dealing with large datasets or when summarizing data across multiple rows. Common aggregate functions include:
Filtering Rows Using Aggregate Functions in PostgreSQL
PostgreSQL is an advanced relational database system that supports both relational (SQL) and non-relational (JSON) queries. It is free and open-source. Filtering rows based on conditions is a regular operation in database administration.
Although filtering rows by each column value is easily done, more advanced filtering needs which may require aggregate functions usage occur more often. In this article, we will go into detail about filtering rows using aggregate functions in PostgreSQL, and see some example queries of filtering rows using aggregate functions.
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