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I am using version 7.2.7 of MyDAC with Delphi XE2 Update4 Hotfix1, and I am having the same problem as the one that was fixed in version 6.00.0.5 and discussed at
http://forums.devart.com/viewtopic.php? ... 435#p82435


Unfortunatelly the problem re-appeared and I found out at version 7.1. And problem is still there with the current version 7.2.7 of MyDAC.

When backing up with MyDac 7.2.7, I get greek unicode text like this in my files
Αξεσουάρ (Τσάντες, Ζώνες, Καπέλα

Again, the only way to backup normally is to disable unicode.

Additional information that you might need is the following.

1) The error occured on the 32Bit version of your components (I haven't checked on 64bit).

2) The database I am backing up is EMBEDDED MySQL database (if it is related) and therefore the connection component related is EmbeddedConnection component.

Again the rest of the information as stated above is MyDAC v7.2.7 and DelphiXE2 Update4 Hotfix1.

If you need working sample to demonstrate the problem, please let me know.
Thank you

When UseUnicode is set to True, data is encoded to the UTF16 format. When backing up to a file process is performed, data is stored to the UTF8 format. These formats are incompatible with each other. That's why you should disable the UseUnicode property and set the Charset property to UTF8 before backing up data.

However this wasn't necessary before.

The system was working normally and after upgrading this occured. Should not be compatibility with the previous version of the components?

Therefore we shall expect this to be fixed on the next update?

We will investigate this question.

ioannisa is right

Any news?

I am rolling back to previous versions. Lots of my customers have lost their backups and I am in trouble.

I am expecting some comment please regarding how you address this issue.

The same issue was a bug being fixed on the past. We expect the same today. Behavior of the applications has changed. Its not - by any means - feature that needs to be addressed differently.

Its been several days without any reply regarding how you will address this problem.

Please reply!

We will fix this problem in one of the following MyDAC builds.