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Mark Williams

FireDAC clearDetails or EmptyDataSet

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I have been using ClearDetails to remove all records from TFDQuery components.


However, I have experienced a problem today where a call to ClearDetails for a reusable query that is designed to return a single record is not removing that record. The description for this function states:



Clears all the content in the dataset.

ClearDetails iterates along rows and columns in order to clear the content.

Pretty much what I was expecting it to do, but (in this one case at least) it is not. I have switched to EmptyDataSet which does the job, but should I be updating all places where I use ClearDetails to update to EmptyDataSet?

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