SELECT HOUR(APPLY_TIME) as Hour,count(*) as Count
FROM sesc_social_security
WHERE
APPLY_TIME like '2018-01-23%'
GROUP BY HOUR(APPLY_TIME) ORDER BY Hour(APPLY_TIME);上面是按每小時(shí)統(tǒng)計(jì)的，請(qǐng)問(wèn)如何按每2小時(shí)統(tǒng)計(jì)呢？
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