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OLAP Aggregate Queries
JoeWinter edited this page Sep 18, 2014
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[Table of Contents](https://github.com/dell-oss/Doradus/wiki/OLAP Databases: Table-of-Contents) | Previous | Next
Doradus OLAP Databases: OLAP Aggregate Queries
Aggregate queries perform metric calculations across objects selected from the perspective table. Compared to an object query, which returns fields for selected objects, an aggregate query only returns the metric calculations. This section describes aggregate query parameters, commands, and result formats for various grouping options.
Technical Documentation
[Doradus OLAP Databases](https://github.com/dell-oss/Doradus/wiki/Doradus OLAP Databases)
- Architecture
- OLAP Database Overview
- OLAP Data Model
- Doradus Query Language (DQL)
- OLAP Object Queries
- OLAP Aggregate Queries
- OLAP REST Commands
- Architecture
- Spider Database Overview
- Spider Data Model
- Doradus Query Language (DQL)
- Spider Object Queries
- Spider Aggregate Queries
- Spider REST Commands
- [Installing and Running Doradus](https://github.com/dell-oss/Doradus/wiki/Installing and Running Doradus)
- [Deployment Guidelines](https://github.com/dell-oss/Doradus/wiki/Deployment Guidelines)
- [Doradus Configuration and Operation](https://github.com/dell-oss/Doradus/wiki/Doradus Configuration and Operation)
- [Cassandra Configuration and Operation](https://github.com/dell-oss/Doradus/wiki/Cassandra Configuration and Operation)