> For the complete documentation index, see [llms.txt](https://docs.pentaho.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.pentaho.com/pdia-data-integration/9.3-data-integration/advanced-topics-pentaho-data-integration-overview/pentaho-data-services/share-a-pentaho-data-service-with-others/query-a-pentaho-data-service/example.md).

# Example

The following example of a SQL query shows how to include a parameter. The example queries the **employeeList** data service for records, and when the data service transformation is executed, any use of the parameter **employeeRegion** in it will be substituted with the value *USA EAST*. This parameter can be in any transformation step that allows variable or parameter substitution.

You can also assign a value to the parameter in the Connection Properties window.

Using the following sample syntax:

```sql
SELECT * FROM '<*data service name*>' WHERE PARAMETER('<*parameter\_name*>') = '<*parameter\_value*>'
```

The following query would be used for our example:

```sql
view sourceprint
   SELECT * FROM '*employeeList*' WHERE PARAMETER('*employeeRegion*')='*USA EAST*'
```


---

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