Question

i have a table named daily_mood and it has three (3) columns, looks like below:

CREATE TABLE daily_mood (moodid INTEGER PRIMARY KEY autoincrement,mood TEXT,mooddate DATETIME)

it’s data looks like that:

Now, i want to select/delete all rows except from current date to before 24 hours exactly according to mooddate column.

i tried this query like:

SELECT *from daily_mood where mooddate>=datetime('now', '-1 day');

the result should be 1 row(last one) from above data.but here comes 2.like

results should be the last row. Anyone can help me? thanks.

Answer 1

SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.US);
Calendar c = Calendar.getInstance();
c.setTimeMillis(System.currentTimeMillis());
c.add(Calendar.HOUR_OF_DAY, -24);


String query = "SELECT * from daily_mood WHERE mooddate >= " + "'" + dateFormat.format(c.getTime()) + "'";