Database Log Clean Up Batch Job

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Posted on by MBates237

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Hello everyone.

My organisation's database log has become incredibly large and I'm trying to tackle it. With help from Microsoft we've deleted a lot of the data directly using SQL. However, I now want to keep on top of the maintenance. I've tried to run the database log clean up job with (DateRange(-30,-0)) to delete anything older than 30 days but it doesn't appear to work, I've only had success when explicitly specifying a date, which I don't want to do if I'm scheduling a recurring batch job.

Any tips on setting up a recurring clean up job please?

Thanks,

Michael

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André Arnaud de Cal... 303,679 Super User 2026 Season 1 on at

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Hi Michael,

Can you explain the behavior when you mention "it doesn't appear to work"? Note that the date range is now set to the last 30 days, not older than 30 days. For older than 30 days, you can use the query syntax (LessThanDate(-30)).

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Hana Xue Microsoft Employee on at

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Hi,
Please check your date range settings, you want to delete data that is more than 30 days in the past, please use the lessthan method.

Best Regards,
Hana

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Bharani Preetham Pe... 3,634 Moderator on at

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Seems you are using wrong syntax to fetch dates older than 30 days. You should use this

Less than thirty days from now – Enter (LessThanDate(30)).

For more understanding, please check the link Advanced filtering and query syntax - Finance & Operations | Dynamics 365 | Microsoft Learn

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Hana Xue Microsoft Employee on at

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Hi,

If the answer is helpful ,please mark it as verified to help more people in the forum.

Best Regards,

Hana

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MBates237 233 on at

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Just an update on this one, I've run the cleanup job to delete everything older than a year

But it seems to have just deleted everything as there are now only records from today in the DB log (this is the view sorted by oldest to newest) Should it have been (LessThanDate(-365)) i.e. anything older than 1 year ago?

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Bryan Sanderson 778 on at

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Yes, it should have been (LessThanDate(-365)). The query you ran was in essence saying anything older than 365 days from today, aka go a year from today and delete everything older than that.

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