Drop Table doesnot result on deleting data in the sqlite file

问题

I have a Sqlite database file that i modify it by dropping a huge database table that contains thousands of records but the file size remains as it before dropping the table. it seems that it disconnect pointers to data . any ideas how to drop table and make a deep deletion of it in the underlying sqlite file .??

回答1:

To reclaim space, use the vacuum statement.

From a sqlite prompt

sqlite> VACUUM;

From a shell prompt.

$ sqlite3 filename 'VACUUM;'

来源：https://stackoverflow.com/questions/11926178/drop-table-doesnot-result-on-deleting-data-in-the-sqlite-file