# Pattern validation scenarios

* [Checking the data in multiple columns against patterns](https://help.qlik.com/talend/r/en-US/7.3/components/pattern-validation/tmultipatterncheck-tlogrow-tmysqlinput-tmysqlinput-checking-data-in-multiple-columns-against-patterns-standard-component-enterprise-this)
* [Connecting to a web service and returning a list of regular expressions](https://help.qlik.com/talend/r/en-US/7.3/components/pattern-validation/tfindregexlibexpressions-tmap-tfileoutputdelimited-tfileoutputdelimited-connecting-to-web-service-and-returning-list-of-regular-expressions-standard-component-enterprise-this)