Splunk® Cloud Services

SPL2 Search Reference

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where command overview

The where command uses <predicate-expressions> to filter search results. A predicate expression, when evaluated, returns either TRUE or FALSE. The where command only returns the results that evaluate to TRUE.

The where command is identical to the WHERE clause in the from command.

Syntax

The required syntax is in bold.

where <predicate-expression>

How the where command works

The where command acts as a filter on your search results. The where command takes the results from your search and removes all of the results that do not match the <predicate-expression> that you specify.

With the where command, you must specify a <predicate-expression> that evaluates to TRUE. This can include an expression such as field=value. The following table shows a few examples:

Example Description
...| where name="maria" In this example, maria is a string literal. All strings must be enclosed in double quotation marks.
...| where ipaddress="198.51.100.1" The IP address is a string value. All strings must be enclosed in double quotation marks.
...| where 'host-name'="buttercup" If the expression references a field name that contains characters other than a-z, A-Z, 0-9, or the underscore ( _ ) character, the field name must be surrounded by single quotation marks.
...| where status in("400", "401", "403", "404") The expression can include a function. This example returns in=TRUE if one of the values in the status field matches one of the values in the list.

In addition to field=value expressions, you can specify a mathematical expression, concatenation expression, comparison expression, as long as the expression evaluates to TRUE.

For more information about expressions, see Expressions and Predicate expressions in the SPL2 Search Manual.

See also

where command
where command syntax details
where command usage
where command examples
Other commands
from command overview
Functions
Overview of SPL2 eval functions
Last modified on 27 July, 2021
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This documentation applies to the following versions of Splunk® Cloud Services: current


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