SQLite SELECT with Limit performance

Question

I have an android app that performs a SELECT * statement over a DB with ~5M records. The query takes about 1 minute to complete and I was wondering whether it can be speed up by using indexes or something else.

SELECT * FROM [TABLE] where timestamp > [TIMESTAMP] ORDER by timestamp ASC LIMIT 0,500

Answer 1

此查询中的查找和排序都可以通过timestamp列上的索引来加速：

CREATE INDEX table_timestamp_index ON [TABLE](timestamp);