DA Delphi XE Template Wizard - Schema loading failed

Data Abstract
1

Hello everybody,

i’m just right new with DataAbstract doing some tests with the trial at the moment,
but now i stumble building a client app connecting to the Relativity server.
i always(i tried several configurations) hanging on the error message:
“Schema loading failed” (see. attached file)

Involved products/configuration

  • MySQL Server Version (5.1 / 5.5 tried both)
  • Relativity Server (local / remote tried both)
  • DB-Access via UniDAC or MyDAC (tried both)

At this point, not knowing the exact problem, i need some help.

Many thanks in advance,

Regards Data

2

Hello,
For Relativity you should use only NET drivers. In your case use MySql.NET driver.

3

If that doesn’t work… We ran into this, we had to re-build the DAD file for the database using delphi 2007 to use it in delphi 2009/2010, issues with ansi and unicode.

4

Hello,
Relativity doesn’t use DAD drivers.
But in some cases you should rebuild DAD file for SchemaModeler, issues with ansi and unicode.

5

Hello,

first of all, thank you for the replies so far.
But unfortunately my problem isn’t solved yet.

I haven’t D2007 installed, just using XE and XE2.
@DevFlexe:
Perhaps you can post the rebuild DAD file(s) for MySQL/UniDAC here ?
That would be very helpfull for me

Perhaps my handling of Relativity Server or Data Abstract Template Wizard is wrong?!
I’m using the Relativity Server Admin to:

  • added a new domain to the Relativity Server
  • adding a new Schema to the new Domain, using the *.daSchema file generated with the Schema Modeler
  • adding a new connection to the new domain using the connection string from the schema Modeler
  • Starting Delphi DataAbstract Template Wizard following the step by step running up into the error above(see first post)

Meanwhile i tried ^^the same^^ with a SQLLite database ending up in the same error?!
Surprisingly, if i added exactly the schema under the “PCTrade Sample” everything is working fine. WTF ?

Any ideas are welcome :wink:

Regards Data

6

Hello,
Can you send us your schema and connection files? We will retest them.

7
Hello, Relativity doesn't use DAD drivers.

Yes, correct… but the wizard does!.. if not resolved I can rebuild the files required for you. cheers.

8

It’s resolved with the latest release(Spring 2012), sorry for the late response.

Regards Data