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Create file UserDoc.md and add an entry about resetting password.

SIMPLICITY_Bug-189_Course_Delete_btn
Hui Lan 2020-05-30 23:14:57 +08:00
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Resetting password
-------------------
We can reset a user's password by directly modifying the MySQL database table called `users_table`. More specifically, we delete that user's information from `users_table` so that the user could sign up again. Suppose the user's student number is 201131129138.
To do so, LRR administrator logs in to MySQL using the following command: `mysql -u username -p`. Type the correct password to access the MySQL database.
After that, issue the following commands in the mysql prompt.
- `use lrr;`
- `delete from users_table where Student_ID="201131129138";`
The first one uses a database called lrr in MySQL. The second one deletes a record from `users_table` where the student number is 201131129138.