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kgaughan/first_day.sql

Created November 13, 2012 13:34
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Function to get the first day of the month. Why doesn't this already exist in MySQL?!
Raw
first_day.sql
CREATE FUNCTION FIRST_DAY(dt DATE)
RETURNS DATE DETERMINISTIC
RETURN LAST_DAY(dt - INTERVAL 1 MONTH) + INTERVAL 1 DAY;
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