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i am from russia
in MyDac5.55 professionnal does not work "TMyQuery->Execute();"
i have an error
"Access violation at address 01000000. Read of address 01000000."
same code worked in trial version of MyDac
SQL string very simple "select * from konv"
whery is the problem

Please give a more detailed description of the problem.
Try to compose a small sample to demonstrate the problem and send it to dmitryg*devart*com.