COUNT
Written by
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 1.1, Microsoft SQL Server 2017 (14.0), MySQL 5.6, Oracle Database 12c (12.1), PostgreSQL 9.3.