Database has more than 30000 vehicle data, more than 1700 kinds of vehicle types, The question now is: will the more than 1700 kinds of modified into a variety of vehicle types of fixed several vehicle types, have what good way
CodePudding user response:
First of all to have a more than 1700 kinds of a variety of vehicle types, and finally you need, fixed several vehicle types, tidy up corresponding relation, with this, it's not hard to,
CodePudding user response:
Tidy up first to modify the contents of the corresponding relation, there are two ways to Partial batch change 1.2. Write a stored procedure, iterate through each data change