# Using Data Shaping Parameterized Expression

Data Shaping Parameterized Expression is an expression that contains placeholders whose values are supplied from the mapping context. You can use parameterized expression to create flexible and adaptable expressions that you can reuse in the DSQL map editor.

You can use parameterized expressions in a fragment like a function, or inside another parameterized expression.

### In this section

* [Creating parameterized expressions](https://help.qlik.com/talend/en-US/data-mapper-user-guide/8.0-R2026-07/creating-parameterized-expressions)
* [Using parameterized expressions](https://help.qlik.com/talend/en-US/data-mapper-user-guide/8.0-R2026-07/using-parameterized-expressions)