> For the complete documentation index, see [llms.txt](https://docs.oneweb.tech/oneweb/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.oneweb.tech/oneweb/design-and-develop-oneweb-apps/design-and-develop-low-code-apps-using-appspace/database-tools.md). # Database Tools From version 4.0.19.09 ONEWEB provides a feature to design application schema using the ER Diagram designer tool. Users can design new tables and relationships as well as import existing schema for re-engineering. From version 5.0.21.01 we have added SQL Builder and Data Viewer tools as well to the list of Database Tools. Now ONEWEB provides \ **Data Designer** - To design application schema **SQL Builder** - To help generate SQL queries without knowing SQL syntax **Data Viewer** - To view database tables and structures --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://docs.oneweb.tech/oneweb/design-and-develop-oneweb-apps/design-and-develop-low-code-apps-using-appspace/database-tools.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.