Please tell me about the high burst operation of the same data.

Question

A table user data is as follows: idnamepassnum1aaa12345602bbb12345633ccc1234564. There is a php file. When executed, the num of id1 will be increased by 1. Now many people are accessing this php file at the same time. Will the value of the num record be incorrect or wrong?

A zy · Answer

The table is not displayed, please add

IDuserpassnum1aaa12312312bbb1231233