Devart Forums

hi

getting this error, using 4.30.1.17. any hint for me what this error means.


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Benachrichtigung über Debugger-Exception
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Im Projekt scm.exe ist eine Exception der Klasse EAssertionFailed aufgetreten. Meldung: 'Assertion failure (D:\Projects\Delphi\Dac\Source\MemData.pas, Zeile 2362)'. Prozess wurde angehalten. Mit Einzelne Anweisung oder Start fortsetzen.
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OK Hilfe
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thanks
stefan

We couldn't reproduce the problem.
Please send us (mydac*crlab*com) a complete small sample to demonstrate it, including script to create and fill table.

Also supply us following information
- Exact version of Delphi, C++ Builder or Kylix
- Exact version of MyDAC. You can see it in About sheet of TMyConnection Editor
- Exact version of MySQL server and MySQL client. You can see it in Info sheet of TMyConnection Editor

I just started receiving the same error - and it's a sporadic thing, does not always happen on the same records etc... It's quite impossible to make a small example to reproduce an error, as my project is huge -
and I still do not know what trips it over to cause that error.

Can you please have a look in your code if there's any size limitations, maybe some buffers....

This Assert snaps into action when trying to read string from a field and pointer to this string in heap equals to nil. Unfortunately we do not have enough information to determine why this problem does happen.

Assertion failure (D:\Projects\Delphi\Dac\Source\MemData.pas, line 5204)

This happens after I first assign an sql insert statement to TMyQuery object, then call insert and refresh. The failure happens at refresh, the insert is successful, however...

BR,
Kalle

koojay, please specify some things about your environment:
- Exact version of Delphi, C++ Builder or Kylix
- Exact version of MyDAC. You can see it in About sheet of TMyConnection Editor
- Exact version of MySQL server and MySQL client. You can see it in Info sheet of TMyConnection Editor

I have delphi 2005 (Borland developer studio 9.0.1761.24408)
MyDAC version 3.50.0.16 for Delphi 9
MySQL server 4.1.9-nt
MySQL client version: 4.1.3 Direct

The problem went away by calling post between insert and refresh, wich I probably should have done in the first place. Strange error message though.

regards,
Kalle

The build of MyDAC you use has similar problem. Try to download latest build of MyDAC 3 (3.55.0.26) from registered user's area of our site.