Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
I have a SQLite table with 6 million rows.
Doing a DELETE FROM TABLE is quite slow;
Dropping the table and then re-creating it seems quicker.
I’m using this for a database import.
Would dropping the table be a better approach or is there a way to delete all data quickly?
One big difference is that
DELETE FROM TABLEis DML andDROP TABLEis DDL. This is very important when it comes to db transactions. The result at the end may be the same, but these operations are very different.If it’s just performance you’ve to be aware of then it may be ok to drop and recreate the table. If you need transactions in your imports then you’ve to be aware that DDL is not covered and cannot be rollbacked for example.