How to set and ending date value based on begining date with mySQL

Question

I have a table with two fields, date_start & date_end, both are date fields.

date_start currently is populated with various dates. I need to set date_end to 6/30 of the following year.

So if date_start = 2009-03-15 then date_end = 2010-06-30

if date_start = 2010-03-15 then date_end = 2011-06-30

if date_start = 2010-07-01 then date_end = 2011-06-30

Is there a simple way I can go about setting the ending date in a query?

Answer 1

UPDATE table SET date_end=STR_TO_DATE(CONCAT(YEAR(date_start)+1,'-06-30'),'%Y-%m-%d')

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