The given code is for a simple GUI-based Student Management System using MySQL database and Python's tkinter library for UI. It performs CRUD operations (Create, Read, Update, Delete) on a table named 'stu_pro' in the MySQL database 'project10'. Here is a brief explanation of the code:
First, it imports the required libraries, i.e., mysql.connector and tkinter.
It creates a database connection using the credentials 'user', 'password', 'host', and 'database'.
Then, it creates a table named 'student_manage' using a SQL query.
After that, it creates a GUI window using the tkinter library and adds labels, buttons, and entry fields to it.
It defines the functions 'add', 'result', 'show', 'delete', 'select', and 'update' to perform various operations.
The 'add' function adds a new student record to the database. It first fetches the values from the entry fields and checks if any of them are empty. If all the fields have values, it creates a SQL query to insert the record into the table.
The 'result' function shows the marks of a student.
It creates a new window, takes the student's name as input, and fetches the marks of the corresponding student using a SQL query.
The 'show' function displays all the student records in a table.
It first deletes any existing data in the table and then fetches all the records from the database using a SQL query.
The 'delete' function deletes a student record from the database.
It takes the student's name as input and creates a SQL query to delete the corresponding record from the table.
The 'select' function selects a student record for updating.
It takes the student's name as input, fetches the corresponding record from the database using a SQL query and fills the entry fields with the fetched data.
The 'update' function updates a student record in the database.
It first fetches the values from the entry fields and checks if any of them are empty.
If all the fields have values, it creates a SQL query to update the corresponding record in the table.