Question

I have a table in mysql db which contains a list of TV Programs of this week. It is something like this.

----------------------------------------------
start_time,        tv_program_name    isLive
2013-01-19 17:00   sports news
2013-01-19 18:30   NBA....

......

------------------------------------------------

I want to use SQL to find out the current tv program by compare the start_time with now(), and mark the current tv program in db with isLive = 1

I try to use the sql

-------------
SELECT * 
FROM tv_programs
ORDER BY ABS( TIMESTAMPDIFF( 
MINUTE , start_time, NOW( ) ) ) ASC 
-------------

But it is not the right solution because it only return the tv_program which is nearest to the current, not the live tv program that it is playing now.

Can anyone show me some light on this problem?

Answer 1

SELECT * FROM tv_programs
WHERE start_time <= NOW()
ORDER BY start_time DESC
LIMIT 1;