Cascade Library
  • Introduction
    • Welcome to Cascade
    • Workspaces
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    • Build Your First Workflow
    • Build Your First Data App
  • Workflows
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      • Navigating the Canvas
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    • Dynamic Workflows
    • Global Variables
    • Data Locker
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    • Workflow Deployment
  • Integrations
    • Connecting Cascade to your database
    • Amazon S3
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    • BigQuery
    • Google Sheets
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  • Tools
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      • Embed
  • Functions & Expressions
    • Functions
      • Aggregate Functions
        • AVERAGE
        • CORR
        • COUNT
        • COUNTD
        • COUNTBY
        • COUNTIF
        • COUNTIFS
        • COVAR
        • COVARP
        • COVARS
        • MAX
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        • STDEVS
        • SUM
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        • SUMIF
        • VAR
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        • VARS
        • RUNNINGTOTALBY
          • SIGN
          • SIN
          • SQRT
          • SQUARE
          • TAN
          • ZN
      • Conversion Functions
        • TIMESTAMPTODATE
        • TODATE
        • TODECIMAL
        • TOINT
      • Date/Time Functions
        • DATEADD
        • DATEDIF
        • DATENAME
        • DATENORMALIZE
        • DATEPART
        • DATETRUNC
        • DAY
        • DAYS
        • HOUR
        • ISDATE
        • ISOWEEKDAY
        • ISOWEEK
        • ISOQUARTER
        • ISOYEAR
        • MAKEDATE
        • MAKEDATETIME
        • MINUTE
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        • QUARTER
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      • Logical Functions
        • AND
        • BETWEEN
        • CASE
        • CHOOSE
        • CONTAINSWITHIN
        • IF
        • IFS
        • IIF
        • IN
        • IFNULL
        • ISBOOLEAN
        • ISDECIMAL
        • ISDURATION
        • ISINTEGER
        • ISNULL
        • ISNUMBER
        • ISSTRING
        • ISUNIQUE
        • NOT
        • NULL
        • OR
        • SWITCH
        • ALL
          • TOSTRING
        • ANY
      • Math Functions
        • ABS
        • ACOS
        • ASIN
        • ATAN
        • ATAN2
        • CEILING
        • COS
        • COT
        • COSEC
        • DEGREES
        • DIV
        • EVEN
        • EXPONENTIAL
        • FILLINFINITY
        • FLOOR
        • HAVERSINE
        • LOG
        • LN
        • ODD
        • MODULO
        • PERCENTILEOFVALUE
        • PERCENTILEVALUE
        • PI
        • POWER
        • RADIANS
        • RANDOM
        • ROUND
        • SEC
      • Table Functions
        • ENCODE
        • INDEX
        • INDEXBY
        • FILLNULL
        • FIRSTBY
        • GENERATEUNIQUEID
        • LASTBY
        • LOOKUP
        • MATCH
        • NTH
        • OFFSET
        • OFFSETBY
        • PREVIOUSVALUE
        • RANK
        • RANKBY
        • RECORDID
        • ROLLINGAVERAGE
        • ROW
        • RUNNINGAVERAGE
        • RUNNINGMAX
        • RUNNINGMIN
        • RUNNINGSTDEV
        • RUNNINGTOTAL
        • WINDOWAVERAGE
        • WINDOWMAX
        • WINDOWMIN
        • WINDOWCOUNT
        • WINDOWSUM
        • SEQUENCE
        • WINDOWMEDIAN
        • WINDOWSTDEV
        • WINDOWSTDEVP
        • WINDOWSTDEVS
        • WINDOWVAR
        • WINDOWVARP
        • WINDOWVARS
        • WINDOWCORR
        • WINDOWCOVAR
        • WINDOWCOVARP
        • WINDOWCOVARS
        • SMOOTHEDAVERAGE
      • Text Functions
        • ASCII
        • CHAR
        • CONCAT
        • CONTAINS
        • ENDSWITH
        • FIND
        • FINDNTH
        • ISEMPTY
        • JSONPARSE
        • LEFT
        • LENGTH
        • LOWER
        • LTRIM
        • MID
        • PROPER
        • RIGHT
        • RTRIM
        • SPACE
        • SPLIT
        • STARTSWITH
        • TRIM
        • SUBSTITUTE
        • UPPER
    • Building Expressions
      • Expression Operators
      • Guide to Window Functions
  • Cascade FAQs
    • Best Practices
      • 💬How to add a total row to a table
      • 💬How to leave comments on a workflow
      • 💬How to add new columns in the Edit Columns tool
      • 💬Setting up a New Table tool
      • 💬How to rename a tool
    • Knowledge Based
      • 💬How to change Data Types in Cascade
      • 💬How to remove columns from a table in Cascade
      • 💬How to rename columns in Cascade
      • 💬Understanding the Join options in the Cascade Join tool
      • 💬How to connect tools to each other
    • Import
      • 💬How to Import an Excel File into Cascade
      • 💬How to Import a CSV File into Cascade
      • 💬How to import a CSV file into the Data Locker
    • Functions and Expressions
      • 💬How to write an IN() statement with multiple variables
      • 💬How to Remove null Records with a Filter tool
      • 💬How to write an IF Statement in Cascade
      • 💬How to replace null values with 0
    • Troubleshooting
      • ⚠️What does it mean if my workflow won’t load?
      • ⚠️Why can’t I connect my tool to other tools?
      • ⚠️Why are there duplicate records after my Join tool?
  • Change Log
On this page
  • Arguments
  • Output
  • Example

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  1. Functions & Expressions
  2. Functions
  3. Logical Functions

ISNULL

Returns true for null values and false otherwise

PreviousISINTEGERNextISNUMBER

Last updated 3 years ago

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ISNULL( value )

Returns true if a value is null, returns false otherwise

Arguments

Argument

Description

value

Value or column

Output

Outputs true if value is null

Example