MYSQL - in use limit, rank ranking

Check their own (in can not use limit)

 

 

rank ordering, acquiring ranking

set @ rank = 0; define a variable

: Identity value =

= Determining whether the same

    Is equal to a condition before performing

    After performing an unequal condition

 

 

 

 

 

 

 

 

 

 

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Origin www.cnblogs.com/Equilibrium/p/12108270.html