datetime - All MySQL records from yesterday -

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what efficient way records datetime field falls somewhere between yesterday @ 00:00:00 , yesterday @ 23:59:59?

table:

id    created_at 1     2016-01-19 20:03:00 2     2016-01-19 11:12:05 3     2016-01-20 03:04:01

suppose yesterday 2016-01-19, in case i'd want return rows 1 , 2.

since you're looking date portion, can compare using mysql's date() function. note if have large number of records can inefficient; indexing advantages lost derived value of date().

select * table date(created_at) = date(now() - interval 1 day);

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