Ways to find data in Hyper-Converged Database (HCD)

Finding data is one of the most common and important interactions between applications and databases.

In addition to reading data, you also find data in order to modify it, delete it, or otherwise use in subsequent operations. For example, dynamic few-shot prompting amends user-submitted questions with predefined question-response pairs to improve the LLM’s response. Vector search is used to find the most relevant predefined pairs before generating a response for the user.

There are several ways to find data in Hyper-Converged Database (HCD) databases:

  • Filters: Find data matching a specific value or a range of values, with or without ascending/descending sorting.

  • Vector search: Compare vector embeddings in your database against a query vector, and then rank the results by similarity. This is the quintessential use case for vector databases in machine learning.

Was this helpful?

Give Feedback

How can we improve the documentation?

© 2025 DataStax | Privacy policy | Terms of use | Manage Privacy Choices

Apache, Apache Cassandra, Cassandra, Apache Tomcat, Tomcat, Apache Lucene, Apache Solr, Apache Hadoop, Hadoop, Apache Pulsar, Pulsar, Apache Spark, Spark, Apache TinkerPop, TinkerPop, Apache Kafka and Kafka are either registered trademarks or trademarks of the Apache Software Foundation or its subsidiaries in Canada, the United States and/or other countries. Kubernetes is the registered trademark of the Linux Foundation.

General Inquiries: +1 (650) 389-6000, info@datastax.com