CodePudding user response:
The name of the table, the table structure and SQL posted up,CodePudding user response:
Take a test data into two tables, and see whether the associated conditions are the same,CodePudding user response:
Too many possibilities, rather than doubt the problem of database, question your operation went wrongCodePudding user response:
The query is shown in figure
CodePudding user response:
Has two tables for the second time appear this kind of situation is not created at the same time, create can query at the same time, the other two different tables in addition to the name of the table are the sameCodePudding user response: