How to use PERIOD_DIFF function in MySQL
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PERIOD_DIFF (monthStart,monthEnd)
SELECT PERIOD_DIFF (1601 ~ 1603) SELECT PERIOD_DIFF (191602 ~ 191607) SELECT PERIOD_DIFF (1916-02 ~ 1916-07) SELECT PERIOD_DIFF (1602 ~ 9002)->-2->-5-> 5-> 312
This function returns the number of months between monthStart-monthEnd
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