# Liquibase changeset as target/source for diffs and edits

**URL:** <https://forum.liquibase.org/t/liquibase-changeset-as-target-source-for-diffs-and-edits/2010>\
**Category:** General Discussion\
**Created:** [June 15, 2012, 2:10pm UTC](https://forum.liquibase.org/t/liquibase-changeset-as-target-source-for-diffs-and-edits/2010 "2012-06-15T14:10:00Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![ricosrealm](https://avatars.discourse-cdn.com/v4/letter/r/0ea827/32.png) [@ricosrealm](https://forum.liquibase.org/u/ricosrealm)\
**Post date:** [June 15, 2012, 2:10pm UTC](https://forum.liquibase.org/t/liquibase-changeset-as-target-source-for-diffs-and-edits/2010/1 "2012-06-15T14:10:00Z")

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I’m looking at liquibase as means to transform my sql schema/data during a migration.&nbsp;

It would be handy if liquibase allowed the database change set to be a database itself, performing changeset operations on the changesets 🙂 &nbsp;This would allow a changeset to be modified before application to a db migration/update.

Another useful feature that I’m looking for seems missing: the ability to only grab data from specific tables.

Is this in any way possible right now? &nbsp;Or is this some wishing thinking?