> I've been using the SQLiteSpy sql browser tool from Ralf > Junker at The Delphi Inspiration to test and time sql. > Unfortunately for my assumptions, it appears that SQLiteSpy > runs queries about 2.5x faster than using the SQLite dll in my code. > Does anyone know how to speed up SQLite running as a dll? > I contacted Ralf who informed me that he knew of this speed > advantage and mentioned that he compiled his dll separately > using Borland. > An additional mystery is why using the 'optimize for speed' > compiler option actually slows down the result set processing. > > I am using VC 6 C++ and SQLite 3.34. > My timing test uses the time reported my SQLite as reported > on the status bar, and for my code, I time only the sql_exec > stmt completion callbacks: > 'rc = sqlite3_exec(db, pSQL, callback1, 0, &zErrMsg);'. > My callback merely stuffs 5 columns into a char array with no > processing. > > Thanks for your help. > Michael > >
Michael I would suggest that SQLiteSpy is using sqlite3_prepare, sqlite3_step and sqlite3_reset rather than sqlite3_exec and this accounts for the difference. Daniel. ============================================================================== Please access the attached hyperlink for an important electronic communications disclaimer: http://www.credit-suisse.com/legal/en/disclaimer_email_ib.html ==============================================================================
