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: Number (whole)
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
.