idea to start the project connecting mysql database back-end report duplicate name abnormalities

Write your own sql statement runs in a MySQL database is not a problem

 

 However, when using the idea to start the project, run in the background when this line sql statement is actually being given, duplicate name: duplicate names, and finally his own reflection, this changes a bit sql statement is not being given.

 

 

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Origin www.cnblogs.com/dongyaotou/p/11874517.html