How do I get the newest time value in Android Java SQL in my database? -

i have sql database 2 columns "message" , "datetime". want know when last entry added. want highest datetime value.

what efficient way query database in android/java value?

assuming have sqlite:

if column text or real give newest item:

select * table order date(column) desc limit 1

select * table order datetime(column) desc limit 1

or simply

select * table order column desc limit 1

Today