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Yandex DataLens
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        • ISNULL
        • ZN
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  1. Calculated fields
  2. Function reference
  3. Logical functions
  4. ISNULL

ISNULL

Written by
Yandex Cloud
Improved by
amatol
Updated at November 6, 2024

SyntaxSyntax

As a function

ISNULL( expression )

As an operator

expression IS [ NOT ] NULL

DescriptionDescription

Returns TRUE if expression is NULL, otherwise returns FALSE.

expression IS NOT NULL returns the opposite result.

Argument types:

  • expression — Any

Return type: Boolean

ExampleExample

[sales] ISNULL([sales]) [sales] IS NULL [sales] IS NOT NULL
432.40 False False True
77.00 False False True
12000.00 False False True
NULL True True False
34.25 False False True
128.00 False False True
0.00 False False True
NULL True True False

Data source supportData source support

ClickHouse 21.8, Files, Google Sheets, Microsoft SQL Server 2017 (14.0), MySQL 5.7, Oracle Database 12c (12.1), PostgreSQL 9.3, Yandex Documents, YDB.

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