COUNT

Function COUNT is also available as a window function.

Syntax

COUNT(  [ value ] )

Description

Returns the number of items in the group.

Argument types:

• value — Any

Return type: Integer

Examples

COUNT()

COUNT([OrderID])

Data source support

Materialized Dataset, ClickHouse 19.13, Microsoft SQL Server 2017 (14.0), MySQL 5.6, Oracle Database 12c (12.1), PostgreSQL 9.3, YDB.