How to obtain records in a certain period of time in mysql database

This article mainly explains "how to obtain records in a certain period of time in mysql database". Interested friends may wish to have a look. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn "how the mysql database can obtain records within a certain period of time".

Generally speaking, when we record the data time in the mysql database, we will choose the datatime type, so that the time can be accurate to seconds. But one of the problems that comes with it is that when we want to get the data content over a certain period of time, there will be some trouble in time conversion. For example, if we want to get the content from March 2, 2002 to July 8, 2003, our first intuition is that we should write sql in the following form:

Select * from yourdb where sj > = '2002-3-2' and sj=to_days ('2002-3-2') and sj= TO_DAYS (a.beginDate)

And TO_DAYS (NOW ()) < TO_DAYS (a.endDate)

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