# Preparing data tables for queries in AWS Clean Rooms
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If your use case doesn't require you to bring your own data, you can skip this procedure. 

If your use case involves querying identity data, see [AWS Entity Resolution in AWS Clean Rooms](working-with-entity-resolution.md).

For more information about the data formats that you can use, see [Data formats for AWS Clean Rooms](data-formats.md).

**Topics**
+ [Preparing data tables in Amazon S3](prepare-data-S3.md)
+ [Preparing data tables in Amazon Athena](prepare-data-athena.md)
+ [Preparing data tables in Snowflake](prepare-data-snowflake.md)