# Data query

There are several types of data queries

  • Raw data query
  • Aggregate query
  • Downsampling query
  • Single point supplementary null query
  • Latest data query
  • Align by device query
  • Group by fill query

In order to achieve the above kinds of queries, a basic query component for a single time series is designed in the IoTDB query engine, and on this basis, various query functions are implemented.

Copyright © 2021 The Apache Software Foundation.
Apache and the Apache feather logo are trademarks of The Apache Software Foundation

Contact us: Join QQ Group 659990460 | Add friend tietouqiao and be invited to Wechat Group
see Join the community for more