The question mark execution time is too long, how to do?

CodePudding user response:

Urgent for optimization solution!

CodePudding user response:

Take out the SQL, explain it and see if in the index

CodePudding user response:

With the index

CodePudding user response:

Analyze the execution plan

CodePudding user response:

Analyze the execution plan

CodePudding user response:

Only through the execution plan slowly debugging