ZN

    Syntax

    ZN( expression )
    

    Description

    Returns expression if it's not NULL. Otherwise returns 0.

    Argument types:

    • expressionFractional number | Integer

    Return type: Same type as (expression)

    Example

    [sales] ZN([sales])
    432.40 432.40
    77.00 77.00
    12000.00 12000.00
    NULL 0.00
    34.25 34.25
    128.00 128.00
    0.00 0.00
    NULL 0.00

    Data source support

    ClickHouse 19.13, Microsoft SQL Server 2017 (14.0), MySQL 5.6, PostgreSQL 9.3.