23 Best SQL Projects For Beginners to Advanced Learners

Data is the lifeblood of the digital world, and databases are the vessels that store, organise, and manage this invaluable resource. Together as a unit, they form the backbone of modern technology, powering everything from simple apps to intricate AI systems. This makes database-centric computer languages like Structured Query Language (SQL) and the various SQL Projects vital for expanding the horizons of developers.

MySQL and Microsoft SQL servers are among the world's top three most popular Database Management Systems (DBMS), garnering ranking scores of 1061.34 and 821.56, respectively. Such stats outline SQL's importance, and this blog is here to affirm the same. Read on and learn about some of the best SQL Projects to dive into to expand your skills in the realm of Database Management.

Table of Contents 

1) Defining SQL   

2) The Importance of SQL 

3) SQL Projects for Beginners 

4) SQL Projects for Intermediate Learners 

5) SQL Projects for Advanced Learners 

6) Conclusion 

Defining SQL   

SQL, or Structured Query Language, is a powerful and standardised programming language used for managing, manipulating, and retrieving data from relational database systems. Developed in the early 1970s, SQL serves as a bridge between users and databases, enabling efficient communication with databases by executing queries and commands. 

SQL operates on relational databases, which store data in structured tables with rows and columns. Users can interact with these databases through Basic Structure of SQL Queries to perform various tasks, such as creating, modifying, and deleting tables, as well as inserting, updating, and querying data.

SQL commands include SELECT (used to retrieve data), INSERT (for adding new data), UPDATE (for modifying existing data), and DELETE (for removing data). SQL also provides capabilities for defining and managing database structures, like indexes, constraints, and views. SQL has become essential for businesses, developers, and data professionals to effectively work with relational databases, ensuring data integrity and facilitating data-driven decision-making.
 

 

The importance of SQL  

SQL helps Database Administrators and Engineers to interface with Information Systems seamlessly. The integration services offered by SQL Server are beneficial for large-scale companies holding a massive volume of data. These companies can reduce their workload by efficiently storing and collecting data from their departments.  

The services of SQL can significantly simplify these operations. The consistent practice of SQL operations on databases for different real-world applications benefits users of all competency levels. SQL practices span multiple industries like healthcare, finance, e-commerce and so on. Beginners will improve their logical and analytical thinking skills in real-world scenarios and improve their employability in the job market for SQL-based designations. 

SQL Projects for Beginners

Below is a curated list of SQL Projects that Beginners can practice to improve their Database Management skillset:

1) Library Management System 

A Library Management System can issue books and provide users with a system to browse various book titles categorically. The system tracks details of all books in the library and other important information such as their status, book count and cost. The system's users will benefit from its automated format compared to the manual writing format. 

The C# language utilised for this system simplifies its design and development. This kind of system is called a Management Information System (MIS). Furthermore, administrators can quickly retrieve the required information by running SQL commands in the database.   

Important characteristics required for the system: 

a) The system must be user-friendly. 

b) The system can be seamlessly developed using ASP.Net and the C# programming language.  

c) The SQL language can be utilised for performing queries to retrieve the necessary information. 

d) The management system for the library must include the entries for every book together with their details.  

Here are some recommended operations to query on the database: 

a) The most expensive book in the library 

b) The most popular books in each city 

c) The most purchased book in the library 

d) The least chosen book in the library 

2) Student Database Management System 

The student database system can be developed and successfully operated using SQL. This system aims to help the administrator maintain proper accountability for students' records. Most student records must keep the latest details about the students. The information stored can be general details such as names, addresses, attendance, performance, etc. The student database can also contain information specifically related to various departments.   

Important characteristics required for the system:  

a) The student database must contain general information related to the students, which could be their names, contact details, admission year, course details, address, and so on.  

b) Other important information like the student's attendance, test results, university fees, academic scholarships and other essentials must be incorporated into the system.  

c) The student database should considerably simplify the educational institution's administrative procedures.

3) Online Retail Application Database 

With the rising prevalence of online shopping, digital retail giants like Flipkart, Amazon, and eBay have made creating an online retail application an ideal introductory SQL project. These platforms rely on extensive databases to handle their vast data needs, primarily focusing on customer and sales data. This data is crucial for evaluating product performance, customer satisfaction, and managing both in-house staff and external vendors. 

A few key features of this database would be as follows: 

a) The system must store comprehensive records of internal employees and external partners, such as packaging and delivery services. 

b) Customer information gathered during sign-ups and orders should be systematically stored for email marketing purposes. 

c) The system should manage order and payment data to enable tracking, refunds, returns, and replacements. 

d) A dedicated data repository is needed for delivery information to facilitate product tracking. 

e) The system should maintain a product database with essential details like pricing, discounts, stock levels, descriptions, and ratings. 

f) Lastly, a separate table should record customer reviews and feedback to enhance product quality based on user input. 

4) Inventory Control Management System 

A product-based business entails the critical measure of keeping track of all its inventory items. Data Analysts can utilise SQL to develop a system for managing the items and making better-informed decisions toward them. These decisions are typically related to inventory planning and maintenance.    

Individuals working with this project can use various SQL statements to tackle some key questions, such as:  

a) Which year did Walmart acquire its highest sales?  

b) Did the weather significantly impact the sales for the year?  

c) How was the weather in the year of acquiring the highest sales?  

d) Is there a regular spike in sales near the holiday season for all years?  

This project utilises predictive analysis to optimise the supply chain process. It aims to reduce overstock and maintain inventory for high-demand products, while suppliers can downscale inventory for low-selling items. This helps retailers allocate funds to high-demand products, increasing profit margins. 

Additionally, the project enhances the store checkout process using Big Data Analytics to determine the optimal checkout method—self-checkout or facilitated checkout—based on demand forecasts and staffing needs at specific times.

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5) Railway System Database Management System  

The railway management system project can help make the process of planning trips, booking tickets, reservations and last-minute cancellations more convenient. The system will streamline the process for users, which will also help retain them as users.    

The dataset for this project will contain essential details, such as:   

a) Train number   

b) Station code   

c) Station name   

d) Arrival time   

e) Departure time   

f) Distance   

g) Source station name   

h) Destination station name   

The idea of this project is for users to develop the database using My Structured Query Language (MySQL) and for them to perform the following tasks:   

a) Book their tickets or cancel booked tickets.   

b) Check their fares before booking tickets and checking their booked tickets.   

c) Check the schedule for available trains, etc.    

The repository files are written to accomplish the following purposes:   

a) Book a ticket: Users can book their tickets.   

b) Cancel a booking: Users can cancel their booked ticket.   

c) Check fares: Users can check the fares before booking their tickets.   

d) Show bookings: Users can check their booked tickets.    

e) Show available train schedules: Users can view the available train schedules.   

f) Clear screen: The terminal screen is cleared.   

g) Menu: Displays the menu   

h) About: Prints the file's contents to the screen   

i) Exit: Exits the ticket booking program  

The following is a list shows the steps for how the user can set up the program environment:   

a) The user can clone the repository to their machine.   

b) They can then create a virtual environment with the commands' virtualenv' or 'pipenv'.   

The following command can be entered to install the necessary packages automatically:   

a) pip3 install –r Requirements.txt   

b) The user can ensure the MySQL service is running and change the password in the files with a new password and the current username with the username on the local SQL server.    

c) They must then run the command python3 Main.py to check the successful run of the program and the connection with the MySQL server.  

Users must note that Step 2 is optional, although avoiding conflicting packages is recommended. Once the users have cloned the repository, they can then rename the readme file to 'README.txt' for the functions in Other.py to work.  

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6) Customer Segmentation  

This SQL Project will help users explore how organisations segment their customers based on demographics, shopping patterns and other features. The dataset should contain the transnational data of transactions in the UK.    

The dataset contained in this project template has information about customers like their demographics, purchase history and customer interaction. It also has characteristics like Multivariate, Sequential and Time-Series. The Data Analysis techniques performed over this dataset are Clustering and Classification.    

The dataset comprises the following variables:   

a) Invoice_No: Each transaction's invoice number   

b) Stock_Code: Unique code for every product sold   

c) Description: Description for every product sold   

d) Quantity: Quantity of every product sold per transaction    

e) Invoice_Date: Date and time of every transaction   

f) Unit_Price: Price of every product sold   

g) Customer_ID: Every customer's unique identifier   

h) Country: The location of the transaction's occurrence   

The central idea of the SQL Project is to let users execute various queries to tackle the following questions:   

a) How are the order values distributed across the customers in the dataset?   

b) What is the number of products purchased by each customer?   

c) Who are the customers who made only one purchase from the company?   

d) Which products are purchased together most commonly by customers in the dataset? 

7) Blood Donation Management System  

The blood donation system is an SQL Project where the patient's particulars, blood bank and the donor's data are saved in the database with their inter-relations. The various operations of the blood bank include the collection, preservation and blood donations to patients.    

Users can create a blood donation system with the following features:   

a) Patient Data: Name, ID, Blood group and disease   

b) Donor Data: Name and Donor ID, blood group, medical reports and contact details   

c) Blood Bank Data: Name and address  

Users can design their system to help maintain the patient's blood banks, including the quality of the maintained blood records. The blood bank record must be immediately available when the patient requests it. This project is highly recommended if the users are looking for SQL Projects to practice their skills.    

Users can create a database to store and manage the blood donation details about the blood donors, such as their name, age, blood group and so on. This information is recorded with the recipients' details like their name, age, blood group, etc. This will help the many hospitals that need blood from the blood bank. Most importantly, the database should contain details about the quality of blood, such as if it is contaminated, and so on.    

Users can use the dataset to solve a few key questions, such as:   

a) Is there adequate blood available in the blood bank?   

b) Does the have any current or a history of blood-borne diseases?   

8) Payroll Management System  

The payroll system project can be utilised to handle the salary system for various enterprises. The project can also be designed to calculate monthly pay, employee taxes, and the social security of the company's workers. This project helps create a useful database system to help a company manage and maintain the payroll information of its employees.    

Users can reuse the project files to design an automated and streamlined organisational payroll process. Such a system helps organisations facilitate accurate calculations and manage their employee payroll details like salary, tax, and other deductions. The payroll process becomes efficient and error-free as a result.    

The following are the specifications of this project   

a) Overview: The payroll comprises the process by which a business pays its employees for their work within a particular period. The system also helps companies abide by a fixed series of procedures that process timely payments which comply with the government's regulations. 

b) Software Applications Used: The project utilises multiple applications such as Windows, Microsoft Visual Studio, MySQL, HTML, CSS, PHP and Xampp.   

The key operations of the project must be as follows:   

a) The user can set the employees' salaries depending on the designation.   

b) The user can add multiple department names company can add multiple department names to their database.   

c) The user can view the payslips of any employee. 

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SQL Projects for Intermediate Learners

1) Cooking Recipe Database 

This is a straightforward SQL involving a cooking recipe database which stores recipe details and their corresponding ingredients, serving various purposes, such as recipe customisation, sharing, and even potential automation through robotics. The database has the following key functionalities: 

a) Recipe Details: The database records comprehensive information about recipes, including their names, quantities, cuisine types, estimated preparation times, serving sizes, and quantities. 

b) Ingredient Details: Raw ingredient data is stored, encompassing ingredient names, types, and categories. 

c) Recipe-ingredient Relationship: A table connects recipes with their required ingredients and quantities, along with the sequence in which these ingredients should be used in cooking. 

d) Cooking Instructions: The final table provides cooking instructions for each recipe listed in the database. It serves as a step-by-step guide, utilising the recipe-ingredient table to specify required ingredients and their order of use, ensuring accurate and complete recipe execution. 

2) Hospital Management System  

This SQL Project will help learners to develop web-based software that manages the standard operations of a hospital system. The system will guide learners to understand how to standardise the records of patients, doctors and hospital rooms. Furthermore, optimising daily activities is the top priority for most hospitals. This project example aims to let developers design a system that they can perform queries on to streamline their tasks, improve efficiency, and gain real-time access to the hospital's operation reports.  

Here are the key specifications of the system database:  

a) Database Specification: This includes business rules, design decisions, requirements, business goals, and the Enterprise Relationship Diagram (ERD), which represents relationships among people, places, objects, or concepts in an IT system. 

b) Database Purpose: The hospital management system aims to maintain a database of patients and hospital employees, store patient feedback, and generate reports for better Data Visualisation. 

c) Business Regulations: Regulations cover hospital employee login details, admin information, and patient demographic details. A register is maintained for patient visits, noting that each patient can have multiple visits. 

d) Design Requirements: The design uses Crow’s Foot Notation to represent entities and their relationships, with different shapes indicating cardinalities. Users must specify tables using notations and symbols.

3) Railway System Database Management System 

The railway management system project can help make the process of planning trips, booking tickets, reservations and last-minute cancellations more convenient. The system will streamline the process for users, which will also help retain them as users.   

The dataset for this project will contain essential details, such as:  

a) Train number  

b) Station code  

c) Station name  

d) Arrival time  

e) Departure time  

f) Distance  

g) Source station name  

h) Destination station name  

The idea of this project is for users to develop the database using My Structured Query Language (MySQL) and for them to perform the following tasks:  

a) Book their tickets or cancel booked tickets.  

b) Check their fares before booking tickets and checking their booked tickets.  

c) Check the schedule for available trains, etc.   

Learn the various SQL operations to query databases in MySQL, by signing up for the Introduction to MySQL Course now! 

4) Payroll Management System 

The payroll system project can be utilised to handle the salary system for various enterprises. The project can also be designed to calculate monthly pay, employee taxes, and the social security of the company's workers. This project helps create a useful database system to help a company manage and maintain the payroll information of its employees.   

Users can reuse the project files to design an automated and streamlined organisational payroll process. Such a system helps organisations facilitate accurate calculations and manage their employee payroll details like salary, tax, and other deductions. The payroll process becomes efficient and error-free as a result.   

The following are the specifications of this project  

a) Overview: The payroll comprises the process via which a business pays its employees for their work within a particular period. The system also helps companies to abide by a fixed series of procedures that process timely payments which comply with the government's regulations.

Furthermore, the payroll system should also include the calculated pay for the employee and the records of their payroll transactions. More importantly, the company must also install a timekeeping system which reflects the hours and number of days put in by their employees. This includes the salary payments for exempt employees.   

b) Software Applications Used: The project utilises multiple applications such as Windows, Microsoft Visual Studio, MySQL, HTML, CSS, PHP and Xampp.  

The key operations of the project must be as follows:  

a) The user can set the employees' salaries depending on the designation.  

b) The user can add multiple department names and company can add multiple department names to their database.  

c) The user can view the payslips of any employee.  

5) Blood Donation Management System 

The blood donation system is an SQL Project where the patient's particulars, blood bank and the donor's data are saved in the database with their inter-relations. The various operations of the blood bank include the collection, preservation and blood donations to patients.   

Users can create a blood donation system with the following features:  

a) Patient data: Name, ID, Blood group and disease  

b) Donor data: Name and Donor ID, blood group, medical reports and contact details  

c) Blood bank data: Name and address 

Users can design their system to help maintain the patient's blood banks, including the quality of the maintained blood records. The blood bank record must be immediately available when the patient requests it. This project is highly recommended if the users are looking for SQL Projects to practice their skills.   

Users can create a database to store and manage the blood donation details about the blood donors, such as their name, age, blood group and so on. This information is recorded with the recipients' details like their name, age, blood group, etc. This will help the many hospitals that need blood from the blood bank. Most importantly, the database should contain details about the quality of blood, such as if it is contaminated, and so on.   

Users can use the dataset to solve a few key questions, such as:  

a) Is there adequate blood available in the blood bank?  

b) Does the have any current or a history of blood-borne diseases?  

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6) Billing System for a Departmental Store 

A billing system is an indispensable tool for every department store, providing a comprehensive overview of stock, sales, and reports. It facilitates efficient stock tracking, sales analysis, and report generation. This system streamlines store management and aids in financial reporting, tax compliance, and sales analysis. Key Functionalities: 

a) User Authentication: To ensure security, the system incorporates authorised login functionality. User details are stored in a user table to manage access. 

b) Item Management: The system enables the management of departmental items. Users can add, edit, view details, or filter items. The item table handles these operations. 

c) Sales Recording: Information about each sale, including items sold, prices, discounts, and quantities, is stored in the sales table. This data assists in tracking sales over specific periods. 

d) Billing Information: As a billing management system, it includes a billing table to store essential invoice details, such as invoice numbers, dates, total sale amounts, optional customer information, tax amounts, and more. 

7) Bus Booking System Mini Project 

The bus booking system is a user-friendly application that streamlines the process of booking bus tickets online, benefiting both travellers and bus agencies. It offers various advantages, such as easy ticket booking, efficient bus scheduling, access to bus schedules, seat availability checks, and online payment options. This enhances customer convenience and provides bus operators with improved management capabilities. Key Functionalities: 

a) Bus Information: The system maintains comprehensive details of available buses, including agency names, bus numbers, routes, source and destination locations, boarding and dropping points, seating capacity, timings, services offered, and bus types. 

b) Booking Management: It efficiently handles passenger bookings. Information about available seats in each bus is stored in a dedicated table, indicating whether they are booked or available for reservation. 

c) Halt Stations: A station table provides a comprehensive list of halt stations, ensuring that buses can decide which stations to cover along their routes. 

d) Route Information: The route table specifies dedicated stops and the sequential path from one location to another. Buses following a specific route adhere to the path outlined in this table. 

e) Boarding and Dropping Points: The system separately stores information about the boarding and dropping points for each bus, enhancing passenger convenience and clarity. 

8) Soccer Game Analysis 

This SQL Project best suits users who like to analyse sports trends and team strategies. The project structure guides users in understanding the application of the dataset.  

This repository contains various tables such as:  

a) Country: The list of countries hosting the games and their unique IDs.   

b) League: Contains the titles of the sports events or league matches.  

c) Match: Contains the performance metrics of the various players for different matches. The metrics are tagged using unique IDs from the other three tables.   

d) Player_Attributes: Contains many parameters like player ratings, possible scores, best foot and so on., for every player to provide a highlight of their performance.   

e) Player: Contains the players' names, height, birth date, weight, API and FIFA ID.  

f) Team: Contains the names of all the teams  

g) Team_Attributes: Contains the various columns that reflect the teams' performance.   

Users can perform the following operations on the databases:  

a) Create a connection to the database and check the tables already available.  

b) Execute a query for the list of countries.  

c) Execute JOIN operations to query the list of leagues and their host countries.  

d) Execute a query that retrieves the list of teams in ascending or descending order.  

e) The data can then be analysed for its dimensions and metrics using various aggregate functions like count(), sum(), avg(), min(), and max().   

Furthermore, users can utilise the 'SELECT' and 'GROUP BY' statements for performing operations like grouping the data, analysing it and aggregating the metrics. They can also use the 'HAVING' function after grouping the data, which adds an extra layer of filtering to the data.   

The next step is to understand the order by which the code is executed, with specific regard to the following clauses:  

a) SELECT  

b) FROM  

c) JOIN  

d) WHERE  

e) GROUP BY  

f) HAVING  

g) ORDER BY  

h) LIMIT  

Now, using subqueries is essential in SQL because it helps users manipulate their data in complex ways without external scripts. In this project, conditional tools are essential for data manipulation.   

9) Road Safety Analysis System 

This SQL project helps users to work with open datasets provided by the UK Department of Transport. These datasets pertain to road safety and casualties and can be utilised for the analysis of roads in the UK. Here are some key specifications of this project:  

a) Dataset: This SQL Project will make use of three tables, namely 'Accident', 'Vehicle' and 'Vehicle_Type', described as follows:  

b) Accident: This table contains the required information related to each accident's location, temporal data, the number of casualties, and weather conditions at the time of the accident.  

c) Vehicle: This table contains information about the vehicle and its driver.   

d) Vehicle_Type: This table has the necessary information about the vehicle in the accident.   

The central idea of this SQL Project is to use aggregate functions in SQL and to tackle some important questions such as:  

a) To evaluate the median severity levels of accidents caused by motorbikes.  

b) To evaluate the severity of the accident and the total number of accidents per vehicle type.  

c) To calculate the average severity value by vehicle type.  

d) To calculate the average severity level and the total number of accidents by motorbikes.

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SQL Projects for Advanced Learners

1) Art Gallery Management Database Project 

The Art Gallery Management Project tops the list of Advanced SQL Projects. This database solution simplifies the organisation of art-related workshops and exhibitions, streamlining the entire process and eliminating manual interventions. The Art Gallery Management System ensures efficient mapping of arts to their respective artists through unique identification codes. It also offers users and customers various capabilities: 

a) Art Gallery Details: The system stores comprehensive information about the art gallery, including location, venue, date, the number of participating artists, the quantity of art to be displayed, user registrations, and more. 

b) Artist Details: Artist-specific information, including achievements and unique artist codes, is recorded in the artist table. 

c) Art Information: All arts, tagged with unique identifiers and linked to the respective artists via artist codes, are stored. This table also contains additional details such as art type, product, medium, and more. 

d) User Registration: Visitors to the art gallery can register through the application, allowing them to save their information for future use, such as for email campaigns. 

e) Payment and Purchase Logging: A separate table logs all payments and purchases during gallery exhibitions, ensuring accurate sales tracking. 

f) Enquiries Handling: The enquiry table captures and stores all customer enquiries received during art gallery events, facilitating follow-up and customer engagement. 

2) Electric Bill System Database 

The Electric Bill System is a highly sought-after advanced SQL database project in the present era, focusing on automating the billing process. Below is the database design for this system, which encompasses several crucial functionalities like the following:  

a) Vendor Information: The vendor table contains details of electricity providers, including electricity board names and general provider information. 

b) Customer Records: The customer's table stores individual customer information and their association with specific electricity boards. 

c) Account Mapping: The account table establishes connections between customers and vendor accounts. This linkage assists in generating electricity bills for customers. 

d) Billing Information: The billing table records comprehensive billing details and invoices for each usage cycle. These bills are subsequently generated and sent to respective customers for payment. The table also tracks payment status. 

e) Tariff Management: The tariff table allows vendors to define dynamic pricing for per-unit electricity usage, ensuring flexible and adaptable billing. 

f) Customer Feedback: While optional, the customer feedback table serves as a valuable resource for vendors aiming to assess their services and make improvements where necessary. 

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3) Bank Accounts Management System 

Online SQL Projects related to a Bank Accounts Management System are essential for practical learning. Banks provide a wide range of services, many of which operate in real-time and involve a substantial number of transactions. Therefore, the database design for such a system must prioritise efficiency and speed in querying required information. Here are the key functionalities and database components: 

a) Customer Information: The system maintains a customer table to store details about individual account holders, joint account holders, merchants, businesses, and other entities associated with the bank. 

b) Account Management: The accounts table records information about bank users' accounts, including account numbers, IFSC codes, and current balances. 

c) Card Services: Information related to credit cards, debit cards, gift cards, and other card services offered by the bank is stored in the card table. 

d) Transaction Records: The transactions table logs user transactions, including transaction mode, parties involved (crediting and debiting), transaction status, and more 

e) Additional Banking Services: The system accommodates various other bank services, such as loans, insurance, and investments. Detailed information on these services is included only if a customer has acquired them from the bank. 

f) Customer Service Purchases: The customer purchases table establishes links between customers and the additional services they have acquired from the bank, providing insights into customer preferences and service usage patterns. 

4) SMS-based Remote Server Monitoring System 

There has been increasing use of Cloud servers to meet the application hosting requirements by many information technology vendors. This requirement has led to high traffic and volume of users relying on Cloud servers directly or indirectly. However, these servers are not versatile They can face challenges during operations at times.

There is provision by the vendors for backup servers, but still, we can notice some downtime during operation hours. At such times, this needs to be conveyed to the required users or vendors. To build such a robust system, design a database with the following features: 

a) A user authentication table should store valid user credentials for system login. 

b) A server table will store details of all monitored servers, continuously checked for faults or breakdowns. 

c) User details and contacts should be included to send SMS during inconveniences. 

d) The database should map users to the servers they use. 

e) Alerts and notifications should be in a separate table to trigger SMS at specified times. 

5) International Debt Statistics Analysis  

This SQL Project helps users explore the debts of various countries to the World Bank. The concept of international debt analysis is essential to understand the idea of economic growth. This includes being familiar with how the World Bank is approached by many countries for loans for their development. It is crucial to understand how a country's expense on its infrastructure is a costly investment to ensure comfort for the citizens.  

Learners keen on practising SQL Projects with datasets in the financial sector can experiment with the data in this template. Here are some key specifications for this project:  

Dataset: The dataset contained in this project template belongs to the World Bank. The information pertains to the amount of money the various countries owe to the World Bank. This dataset comprises the following columns:  

a) Country_code: The three-letter code for the country.  

b) Country_name: The full legal name of the country.  

c) Indicator_name: The indicator name specifies the country's intention or motive behind seeking the debt.   

The central idea of this SQL Project is to execute the SQL commands on the dataset to solve the following questions:  

a) How much money do the countries collectively owe to the World Bank?  

b) Which country owes the highest debt, and how much?  

c) What is the average debt owed by all nations for different indicators of their debt?  

The dataset contains several debt indicators for the countries and information revealing a possible economic issue common to all. Users can execute and play around with the program to derive more thought-provoking findings and facts.

6) Analysing the World Population 

This SQL Project helps users explore population analysis across various countries worldwide. The project contains data from the CIA World Factbook, comprising all countries' statistics. Some details from the demographic information include population growth, total land, water area, etc. Analysing the world population can be a very complex with filters between counties, continents and years.   

The dataset for this project comprises 11 columns and 262 rows, with attributes such as  

a) Id: identification of the country  

b) Area: the total area of a country  

c) Code: the first two letters that denote the country code  

d) Population: population of a country  

e) Population_growth: the ratio of population growth   

f) migration_rate: the ratio of people migrating from one country to another  

g) birth_rate: the rate of births in a country  

h) death_rate: the rate of deaths in a country  

The central idea of the SQL Project is to help users execute SQL queries in Jupiter's Python Notebook and tackle the following:  

a) The country with the highest population  

b) The country with the least number of people  

c) The country that has the highest growth in population  

d) The country with the densest population 

Conclusion 

This blog describes many SQL Project templates for users to practice and hone their skills. Users of both beginner and professional levels will benefit by experimenting with the code and datasets per their interests and competencies. The projects curated in this blog help learners actively develop their interest in the SQL language and guide them to understand data in real-world situations.  

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