How to get Last 3 hours data from SQLite

Question

I am inserting data in table with current system time like System.currentTimeMillis(). So, while getting data I need to take last 3 hours data only.

Answer 1

there could be other methods. but I think this will work for you.

 SELECT * FROM Table1 where timestamp >= (System.currentTimeMillis()-108000000)

subtract 3 hours from current time and and search for time grater than that.

Answer 2

Try this:

 SELECT * FROM Table1 where julianday(timestamp) >=  (julianday('now')-108000000)

Answer 3

You can get TimeStamp of Time 3 Hours back using following

Calendar cal = Calendar.getInstance();
cal.add(Calendar.HOUR, -3);
Date threeHourBack = cal.getTime();

Then you can pass threeHourBack.getTime() to the query.

Or You can do this in SQLite

SELECT * FROM Table1 where datetime(timestamp) >=datetime('now', '-3 Hour')