# TDM Generate Change Script Function Suddenly Stopped Working - Produces Empty Alter Script

**URL:** <https://forums.toadworld.com/t/tdm-generate-change-script-function-suddenly-stopped-working-produces-empty-alter-script/35049>\
**Category:** Toad Data Modeler\
**Created:** [February 9, 2016, 1:57am UTC](https://forums.toadworld.com/t/tdm-generate-change-script-function-suddenly-stopped-working-produces-empty-alter-script/35049 "2016-02-09T01:57:11Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![dan.anselm](https://avatars.discourse-cdn.com/v4/letter/d/a9a28c/32.png) [@dan.anselm](https://forums.toadworld.com/u/dan.anselm)\
**Post date:** [February 9, 2016, 1:57am UTC](https://forums.toadworld.com/t/tdm-generate-change-script-function-suddenly-stopped-working-produces-empty-alter-script/35049/1 "2016-02-09T01:57:11Z")

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Hi,

I have upgraded to the latest version and the Generate Change Script has worked fine a couple of times (and has always worked in previous versions), but I have just run it today and it has found the changes between model and db that I was expecting - however, when completing the wizard to create the alter sql script, an empty file is generated.

I have never seen it do this before and as there is no error, I have no idea where to start looking!

I thought maybe there might be something in an error log, but although I did find a log folder there was only one log in it from a couple of years ago.

Is this a known bug and is there anything I can do?

Thanks

Dan

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**Author:** ![Lukas.Knapek](https://sea1.discourse-cdn.com/quest/user_avatar/forums.toadworld.com/lukas.knapek/32/269_2.png) [@Lukas.Knapek](https://forums.toadworld.com/u/Lukas.Knapek)\
**Post date:** [February 9, 2016, 4:18am UTC](https://forums.toadworld.com/t/tdm-generate-change-script-function-suddenly-stopped-working-produces-empty-alter-script/35049/2 "2016-02-09T04:18:38Z")

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Hi Dan,

Are you still working with SQL Server 2008 model/database or are you using another database platform/version? And are you still using TDM 5.5, or have you updated to the latest Beta version?

Could you please take a screenshot of each section of the **Generate Change Script** wizard so we can see your configuration?

We have seen no such problem before, it’s also a bit difficult to pinpoint since there is no log available. But you could try checking the **Log Progress to File** option in **Comparison Settings** of the wizard and then sending us the file (e.g. _“C:\Users\*username\*\Documents\Toad Data Modeler\Logs\ConvertorSync.log”_).

Regards,

Lukas

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<div class="post-metadata">

**Author:** ![dan.anselm](https://avatars.discourse-cdn.com/v4/letter/d/a9a28c/32.png) [@dan.anselm](https://forums.toadworld.com/u/dan.anselm)\
**Post date:** [March 22, 2016, 3:19am UTC](https://forums.toadworld.com/t/tdm-generate-change-script-function-suddenly-stopped-working-produces-empty-alter-script/35049/3 "2016-03-22T03:19:33Z")

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Hi Lukas, Apologies for taking so long to reply to this!

I am using v5.5.3.20 - I don’t tend to use the betas other than to test fixes as I do not want to risk messing up my model file. It is still SQL Server 2008 that I am working with.

The screenshots and the log file are going to be a few MBs - should I try to send them zipped to you by email?

Cheers

Dan

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**Author:** ![Lukas.Knapek](https://sea1.discourse-cdn.com/quest/user_avatar/forums.toadworld.com/lukas.knapek/32/269_2.png) [@Lukas.Knapek](https://forums.toadworld.com/u/Lukas.Knapek)\
**Post date:** [March 22, 2016, 4:23am UTC](https://forums.toadworld.com/t/tdm-generate-change-script-function-suddenly-stopped-working-produces-empty-alter-script/35049/4 "2016-03-22T04:23:24Z")

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Hi again Dan,

Yes please, send me an email with the zipped screenshots and log ([lukas.knapek@quest.com](mailto:lukas.knapek@quest.com)) and we’ll see what we can find out.

Regards,

Lukas