FireDAC Components for Open Exchange Rates

Build 21.0.7930

Prepared Statements

Executing Prepared Statements with FireDAC Classes

By default, TFDQuery prepares the query to avoid recompiling the same query over and over.

FDQuery1.SQL.Text := 'SELECT * FROM Projects WHERE Id=:Id' 
FDQuery1.ParamByName('Id').AsString := 'MyId';
FDQuery1.Open;

Notes

  • If you need to execute a command only once, set ResourceOptions.DirectExecute to true.
  • The connection must be active and open while a statement is prepared.

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Build 21.0.7930