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Clone size increased a lot

I have created a database image which is 134GB. Then I created a clone of that image which was 100MB, which is a great disk saver. However I ran a SELECT statement to pull out 1000 rows then the database was left and no one else has interacted with it at all. I then check this morning and the clone now weighs in at 42GB!!! I thought SQL Clone was supposed to save disk space? 

Any idea why a clone would jump from 100MB to 42GB with no data being changed?

Thank you.


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    OrionUKOrionUK Posts: 26 Bronze 1
    Thanks praveen_d that could be it. The clone was on a server which runs a daily index optimise job for all databases so I will update it to exclude any clone databases.

    Thank you.
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