Small white for help, as shown in figure a data structure, to achieve the effect of figure 2, how to write Sql statements? Thank you

CodePudding user response:

As long as the first 2 days?

CodePudding user response:

reference 1st floor RINK_1 response:

as long as the first 2 days?

Two days is not, is any, may be 20210107 and 20210104, may be 20210109 and 20210101, arbitrary two days

CodePudding user response:

reference 1st floor RINK_1 response:

as long as the first 2 days?

No, it's need to be able to find any two days