Natural language queries on Oracle Database 26ai: Getting started with Select AI on Amazon RDS for Oracle with Amazon Bedrock

Oracle Database 26ai is now available on Amazon RDS, and this guide walks through setting up Select AI — a feature that lets users query relational data using plain English powered by Amazon Bedrock foundation models. The tutorial covers creating a VPC interface endpoint for private Bedrock access, storing IAM credentials in Oracle via DBMS_CLOUD.CREATE_CREDENTIAL, configuring DBMS_CLOUD_AI profiles pointing to models like Claude Sonnet 4.6 or Amazon Nova, generating synthetic test data, and running natural language queries using SELECT AI syntax. Key actions include showsql (preview generated SQL), runsql (execute and return results), narrate (plain-English summary), and explainsql (explain existing SQL). A troubleshooting table covers common ORA errors with root causes and fixes. This is Part 1 of a three-part series; Parts 2 and 3 cover RAG with Oracle AI Vector Search and GraphRAG with SQL property graphs respectively.

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