To add a Custom Query while creating a dataset, follow the steps given below.

1. Click Custom Query on any dataset creation page. The Add Custom Query page is displayed.
2. Enter a suitable Name for your custom query.
3. Enter a suitable Description for your query.
4. Enter your query in the Add Custom Query field. (For example, select * from A where city = "Pune")
5. Click Add Query. The query is added to your Dataset.

The following figure shows Add Custom Query page.