CodePudding user response:
Import, oneself update well,The definition of general database table automatically inherit the excel form definition, so there will be no conflict,
If is manual definition, it will form the set to allow null columns, guide their update again
CodePudding user response:
Suggest the guide into an intermediate table (no primary key, the default, foreign key constraints, etc.), and then check the middle table data, no problem to insert a formal table, so conservatively.CodePudding user response:
Now EXCEL set, then the import