timeSS BETWEEN '2012-12-12 12:12:12' AND '2015-12-12 12:12:12'
timeSS > '2012-12-12 12:12:12' AND timeSS < '2015-12-12 12:12:12'
这2个用哪个比较好呢
1
huijiewei 2015-03-24 18:07:36 +08:00
理论上 BETWEEN AND 效率更高
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