COUNT
Function COUNT is also found in the following categories: Window functions.
Syntax
Standard
Extended
COUNT( [ value ] )COUNT( [ value ] [ FIXED ... | INCLUDE ... | EXCLUDE ... ] [ BEFORE FILTER BY ... ] )More info:
Description
Returns the number of items in the group.
Argument types:
value—Any
Return type: Integer
Examples
COUNT()COUNT([OrderID])Data source support
ClickHouse 21.8, Microsoft SQL Server 2017 (14.0), MySQL 5.7, Oracle Database 12c (12.1), PostgreSQL 9.3, YDB.