# Comparison and Logical

### In this section

* [IfThen](https://help.qlik.com/talend/en-US/data-mapper-functions-reference-guide/8.0-R2026-09/ifthen-function)
* [IfThenElse](https://help.qlik.com/talend/en-US/data-mapper-functions-reference-guide/8.0-R2026-09/ifthenelse-function)
* [Choice](https://help.qlik.com/talend/en-US/data-mapper-functions-reference-guide/8.0-R2026-09/choice-function)
* [ChoiceValue](https://help.qlik.com/talend/en-US/data-mapper-functions-reference-guide/8.0-R2026-09/choicevalue-function)
* [Equal](https://help.qlik.com/talend/en-US/data-mapper-functions-reference-guide/8.0-R2026-09/equal-function)
* [Lesser](https://help.qlik.com/talend/en-US/data-mapper-functions-reference-guide/8.0-R2026-09/lesser-function)
* [LesserOrEqual](https://help.qlik.com/talend/en-US/data-mapper-functions-reference-guide/8.0-R2026-09/lesserorequal-function)
* [Greater](https://help.qlik.com/talend/en-US/data-mapper-functions-reference-guide/8.0-R2026-09/greater-function)
* [GreaterOrEqual](https://help.qlik.com/talend/en-US/data-mapper-functions-reference-guide/8.0-R2026-09/greaterorequal-function)
* [And](https://help.qlik.com/talend/en-US/data-mapper-functions-reference-guide/8.0-R2026-09/and-function)
* [False](https://help.qlik.com/talend/en-US/data-mapper-functions-reference-guide/8.0-R2026-09/false-function)
* [NotEqual](https://help.qlik.com/talend/en-US/data-mapper-functions-reference-guide/8.0-R2026-09/notequal-function)
* [Or](https://help.qlik.com/talend/en-US/data-mapper-functions-reference-guide/8.0-R2026-09/or-function)
* [Not](https://help.qlik.com/talend/en-US/data-mapper-functions-reference-guide/8.0-R2026-09/not-function)
* [HasValue](https://help.qlik.com/talend/en-US/data-mapper-functions-reference-guide/8.0-R2026-09/hasvalue-function)
* [IsPresent](https://help.qlik.com/talend/en-US/data-mapper-functions-reference-guide/8.0-R2026-09/ispresent-function)
* [IsNull](https://help.qlik.com/talend/en-US/data-mapper-functions-reference-guide/8.0-R2026-09/isnull-function)
* [True](https://help.qlik.com/talend/en-US/data-mapper-functions-reference-guide/8.0-R2026-09/true-function)
* [Comparison and Logical functions examples](https://help.qlik.com/talend/en-US/data-mapper-functions-reference-guide/8.0-R2026-09/comparison-and-logical-functions-examples)