In modern cities, more and more people drive the vehicles, equipped with the GPS devices, which create a large scale of trajectories. Gathering and analyzing these large-scale trajectory data provide ...

Description: Currently, the any_value () aggregate function is not supported in the Postgres dialect. This function is useful when any non-deterministic non-null value from a group is acceptable.

This month’s column shows how to use the remarkably versatile AGGREGATE function in Excel.

Firstly we introduce some efficient query process and optimization methods for SQL Window Aggregate Functions in PostgreSQL. Secondly, we present how to mine the LBS (Location-Based Service) patterns, ...

An aggregate function includes values grouped together to form a single value that provides a summary of the data list.

nodejs mysql reactjs postgresql data-structures relational-databases data-modeling aggregate-functions database-tables database-normalization sub-queries Updated Mar 15, 2022 JavaScript ...

The PostgreSQL relational database management system (RDBMS) extends the standard SQL3 it implements with several conveniences for application development.