FDLocalSQL
http://docwiki.embarcadero.com/Libraries/Berlin/en/FireDAC.Phys.SQLiteVDataSet.TFDLocalSQL
http://docs.embarcadero.com/products/rad_studio/firedac/frames.html?frmname=topic&frmfile=Local_SQL.html
FDConnection1.DriverName := ‘SQLite‘; FDLocalSQL1.Connection := FDConnection1; FDLocalSQL1.SchemaName := ‘orders‘; FDLocalSQL1.DataSets.Add.DataSet := adoQOrders; FDLocalSQL1.DataSets.Add.DataSet := qDetails; FDQuery1.Connection := FDConnection1; FDQuery1.Open(‘select * from orders.adoQOrders o left join orders.qDetails d on o.OrderID = d.OrderID‘);
原文：http://www.cnblogs.com/cb168/p/5645284.html