Update weekdate1. Connect a inner join weekdate1. Connect b on a. order number=b. order number set a. regional=b. provinces;
Command as above, the contents of column to provinces to regions, but to run special slow, often break line many times, to run out, introduction to novice, provide improvement Suggestions for bosses

CodePudding user response:

Update weekdate1. Connect the set regional=province

CodePudding user response:

# 1 is right, you that since the connection no practical significance

CodePudding user response:

Weekdate1. Connect a
Inner join
Weekdate1. Connect b

Really I see along while just see...... Why the same table connection...