On 11 August 2017 11:08:02 GMT+01:00, james ni <james...@live.cn> wrote: >Maybe we are talking the different thing. > > >Background of my problem: > >1, When one table grows larger, I found the INSERT speed is becoming >slower and slower;
It seems to me that you may have chosen to view the problem from an angle which will hide the solution. I had a similar problem in a previous job. I had data arriving from a logging system with multiple events per second. This data had to be parsed and loaded into an SQLite db. At first, I retrieved log data every five minutes and ran an INSERT for each log entry. This "just worked" for a week or so. Then I noticed that elapsed time was growing. Advice from this list encouraged me to enclose multiple INSERT commands in a single transaction. The results were dramatically effective, although I should mention that this was not the only design optimization I needed. If my use case is actually similar to yours, I'ld suggest you try this too. Best regards, Niall O'Reilly -- Sent from Kaiten Mail. Please excuse my brevity. _______________________________________________ sqlite-users mailing list sqlite-users@mailinglists.sqlite.org http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users
