EDistinct with what to write?

CodePudding user response:

Stick to the optimized SQL out just fine, the key tables and fields can be used to replace any other characters

CodePudding user response:

With group by?

CodePudding user response:

Change come on? May only be able to write a plan, the implementation need to ask people to help,

CodePudding user response:

Where can use the size in not between, use less arithmetic operation, using less like, can not the exists not not in