# Comparison and Logical

### In this section

* [IfThen](https://help.qlik.com/talend/en-US/data-mapper-functions-reference-guide/8.0-R2024-04-and-earlier/ifthen-function)
* [IfThenElse](https://help.qlik.com/talend/en-US/data-mapper-functions-reference-guide/8.0-R2024-04-and-earlier/ifthenelse-function)
* [Choice](https://help.qlik.com/talend/en-US/data-mapper-functions-reference-guide/8.0-R2024-04-and-earlier/choice-function)
* [ChoiceValue](https://help.qlik.com/talend/en-US/data-mapper-functions-reference-guide/8.0-R2024-04-and-earlier/choicevalue-function)
* [Equal](https://help.qlik.com/talend/en-US/data-mapper-functions-reference-guide/8.0-R2024-04-and-earlier/equal-function)
* [Lesser](https://help.qlik.com/talend/en-US/data-mapper-functions-reference-guide/8.0-R2024-04-and-earlier/lesser-function)
* [LesserOrEqual](https://help.qlik.com/talend/en-US/data-mapper-functions-reference-guide/8.0-R2024-04-and-earlier/lesserorequal-function)
* [Greater](https://help.qlik.com/talend/en-US/data-mapper-functions-reference-guide/8.0-R2024-04-and-earlier/greater-function)
* [GreaterOrEqual](https://help.qlik.com/talend/en-US/data-mapper-functions-reference-guide/8.0-R2024-04-and-earlier/greaterorequal-function)
* [And](https://help.qlik.com/talend/en-US/data-mapper-functions-reference-guide/8.0-R2024-04-and-earlier/and-function)
* [False](https://help.qlik.com/talend/en-US/data-mapper-functions-reference-guide/8.0-R2024-04-and-earlier/false-function)
* [NotEqual](https://help.qlik.com/talend/en-US/data-mapper-functions-reference-guide/8.0-R2024-04-and-earlier/notequal-function)
* [Or](https://help.qlik.com/talend/en-US/data-mapper-functions-reference-guide/8.0-R2024-04-and-earlier/or-function)
* [Not](https://help.qlik.com/talend/en-US/data-mapper-functions-reference-guide/8.0-R2024-04-and-earlier/not-function)
* [HasValue](https://help.qlik.com/talend/en-US/data-mapper-functions-reference-guide/8.0-R2024-04-and-earlier/hasvalue-function)
* [IsPresent](https://help.qlik.com/talend/en-US/data-mapper-functions-reference-guide/8.0-R2024-04-and-earlier/ispresent-function)
* [IsNull](https://help.qlik.com/talend/en-US/data-mapper-functions-reference-guide/8.0-R2024-04-and-earlier/isnull-function)
* [True](https://help.qlik.com/talend/en-US/data-mapper-functions-reference-guide/8.0-R2024-04-and-earlier/true-function)
* [Comparison and Logical functions examples](https://help.qlik.com/talend/en-US/data-mapper-functions-reference-guide/8.0-R2024-04-and-earlier/comparison-and-logical-functions-examples)