COUNT

Description

This function returns the number of items found in a group. COUNT operates like the COUNT_BIG function. These functions differ only in the data types of their return values. COUNT always returns an int data type value. COUNT_BIG always returns a bigint data type value. (COUNT in Transact-SQL).

Sample Source Pattern

Syntax

SQL Server

COUNT ( { [ [ ALL | DISTINCT ] expression ] | * } )  

Snowflake SQL

Snowflake SQL Documentation

COUNT( [ DISTINCT ] <expr1> [ , <expr2> ... ] )

Examples

SQL Server

Code:

SELECT COUNT(NATIONALIDNUMBER) FROM HUMANRESOURCES.EMPLOYEE AS TOTAL;

Result:

TOTAL|
-----+
  290|

Snowflake SQL

Code:

SELECT COUNT(NATIONALIDNUMBER) FROM HUMANRESOURCES.EMPLOYEE AS TOTAL;

Result:

TOTAL|
-----+
  290|