How can I use a pointer in Python for updating the database?
There is a scenario in which I am working on a project that includes database management of records of employees. In the database, I have a list of dictionaries and each dictionary contains about name, age, and department of the employee. How can I create such a function that can update the department of a particular employee based on his name by using a pointer in Python?
In the context of Python programming language, there is no explicit pointer in Python as in languages such as C programming language or C++ programming language. However, you can still use a pointer-like behavior for using references to achieve a similar function. Here is the approach given by using references:
Def update_department(employees, name, new_department):
For an employee in employees:
If employee[‘name’] == name: Employee[‘department’] = new_department
Break
Else:
Print(f”Employee ‘{name}’ not found in the records.”)
# Example usage:
Employee_records = [
{‘name’: ‘Alice’, ‘age’: 30, ‘department’: ‘HR’},
{‘name’: ‘Bob’, ‘age’: 28, ‘department’: ‘Engineering’},
{‘name’: ‘Charlie’, ‘age’: 35, ‘department’: ‘Marketing’}
]
Update_department(employee_records, ‘Bob’, ‘Sales’)
# Check updated records
Print(employee_records)This above code tries to define the “upadte_department” function that usually takes a list of records of employees' names and a new department.