This repository contains a simple SQL database schema along with sample queries. The database consists of three tables: Worker, Bonus, and Title. Below is a brief overview of the database structure and the purpose of each table:

• WORKER_ID: Unique identifier for workers (Primary Key).
• FIRST_NAME: First name of the worker.
• LAST_NAME: Last name of the worker.
• SALARY: Salary of the worker.
• JOINING_DATE: Date when the worker joined.
• DEPARTMENT: Department where the worker belongs.

• WORKER_REF_ID: Reference to the worker (Foreign Key to Worker table).
• BONUS_AMOUNT: Amount of the bonus.
• BONUS_DATE: Date when the bonus was given.

• WORKER_REF_ID: Reference to the worker (Foreign Key to Worker table).
• WORKER_TITLE: Title or position of the worker.
• AFFECTED_FROM: Date when the title change affected the worker.

This repository also provides sample SQL queries that can be executed against the database. These queries demonstrate common SQL operations and data retrieval tasks. The sample queries include:

• Fetching worker names with an alias.
• Fetching worker names in uppercase.
• Fetching unique department values.
• Printing the first three characters of the first name.
• Removing white spaces from the right side of the first name.
• Removing white spaces from the left side of the department name.