Date in mysql select -

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i have table a:

a.date | a.price 2013-10-01 | 5000 2013-10-02 | 5000 2013-10-03 | 5000 2013-10-04 | 5000 2013-10-05 | 5000

and table b:

b.date | b.price 2013-10-01 | 3500 2013-10-03 | 1600

in output receive following information:

2013-10-01 | 3500 2013-10-02 | 5000 2013-10-03 | 1600 2013-10-04 | 5000 2013-10-05 | 5000

how it, help!

you can use left join, , can try join table table b:

select   a.date,   coalesce(b.price, a.price)   left join b on a.date=b.date

if join doesn't succeed, b.price null, otherwise have value. using coalesce() can first non null value.

please see fiddle here.


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