# How to analyze Undo statistics to proactively avoid undo space issues

**URL:** <https://forums.toadworld.com/t/how-to-analyze-undo-statistics-to-proactively-avoid-undo-space-issues/45111>\
**Category:** Blog Posts\
**Created:** [January 3, 2019, 5:56am UTC](https://forums.toadworld.com/t/how-to-analyze-undo-statistics-to-proactively-avoid-undo-space-issues/45111 "2019-01-03T05:56:03Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![system](https://sea1.discourse-cdn.com/quest/user_avatar/forums.toadworld.com/system/32/2_2.png) [@system](https://forums.toadworld.com/u/system)\
**Post date:** [January 3, 2019, 5:56am UTC](https://forums.toadworld.com/t/how-to-analyze-undo-statistics-to-proactively-avoid-undo-space-issues/45111/1 "2019-01-03T05:56:04Z")

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Jul 25, 2017 12:38:00 PM by [Deiby Gomez](https://blog.toadworld.com/author/deiby-gomez)

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This is a companion discussion topic for the original entry at [https://blog.toadworld.com/blog/2017/07/25/how-to-analyze-undo-statistics-to-proactively-avoid-undo-space-issues](https://blog.toadworld.com/blog/2017/07/25/how-to-analyze-undo-statistics-to-proactively-avoid-undo-space-issues)

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**Author:** ![anil.panda](https://sea1.discourse-cdn.com/quest/user_avatar/forums.toadworld.com/anil.panda/32/13622_2.png) [@anil.panda](https://forums.toadworld.com/u/anil.panda)\
**Post date:** [May 30, 2021, 2:13am UTC](https://forums.toadworld.com/t/how-to-analyze-undo-statistics-to-proactively-avoid-undo-space-issues/45111/2 "2021-05-30T02:13:02Z")

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Very nice 3 blogs related to undo. I need the queries to prepare the graph of active, unused undo. Can you please help.