Instant REST + GraphQL API on the Azure SQL Database container with Data API Builder

Generate a full REST and GraphQL API over the local Azure SQL Database container (Private Preview) with no application code, using Data API Builder (DAB) - Microsoft's first-party open-source engine. You describe tables as entities in dab-config.json; DAB serves them. DAB connects over the normal TDS protocol with a plain connection string, so no change tracking or special engine feature is needed.

Verified on 2026-09-05 against the container image sqldbpreview-dpgaeqhmgphzd4bk.azurecr.io/azure-sql/db-dev:latest, reporting EngineEdition 5, Edition SQL Azure, build 12.0.2000.8. All eight executable checks behind this skill passed against Data API builder 2.0.9, including the generated dab-config.json keeping the environment-variable indirection rather than the password, the /api and /graphql prefixes and the /mcp endpoint arriving as defaults, and both REST and GraphQL returning the same rows from a table in the container.

Load-bearing facts (inlined; full engine detail in azuresql-db-container)