# DAML database integration

**URL:** <https://forum.canton.network/t/daml-database-integration/4669>\
**Category:** App Development\
**Tags:** postgresql, ledger-api\
**Created:** [June 3, 2022, 11:35am UTC](https://forum.canton.network/t/daml-database-integration/4669 "2022-06-03T11:35:50Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![Stephen](https://yyz2.discourse-cdn.com/flex034/user_avatar/forum.canton.network/stephen/32/102_2.png) [@Stephen](https://forum.canton.network/u/Stephen)\
**Post date:** [June 3, 2022, 1:48pm UTC](https://forum.canton.network/t/daml-database-integration/4669/6 "2022-06-03T13:48:14Z")

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Since you are using SDK 2.1.1, I recommend that you move away from Daml-on-SQL, to a Canton setup with Postgres as backend, as soon as possible. Daml-on-SQL is no longer supported. See this previous thread:

> [@What became of \`daml-on-sql.jar\` in 2.x.x?](https://discuss.daml.com/t/what-became-of-daml-on-sql-jar-in-2-x-x/4402):
>
> To run Daml apps built with the SDK 1.x.x with database backing, there used to be a ledger implementation daml-on-sql.jar (cf. e.g., [Release 1.18.0 · digital-asset/daml · GitHub](https://github.com/digital-asset/daml/releases/tag/v1.18.0)) This doesn’t exist in the 2.x.x releases anymore (cf. e.g. [Release 2.1.0 · digital-asset/daml · GitHub](https://github.com/digital-asset/daml/releases/tag/v2.1.0)). What would I use instead to run a Daml 2.x app in a ledger with database backing?

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