# Defining Context Groups scenarios

* [Reading data from databases through context-based dynamic connections](https://help.qlik.com/talend/r/en-US/7.3/components/defining-context-groups/reading-data-from-databases-through-context-based-dynamic-connections)
* [Using context parameters when reading a table from a database](https://help.qlik.com/talend/r/en-US/7.3/components/defining-context-groups/using-context-parameters-when-reading-table-from-database)