SQL
SQL stands for structured query language. It uses commands such as “select”, “insert”, “update”, “delete”. Some common relational database management systems that use SQL are: Oracle, MySQL, Microsoft SQL Server, PostgreSQL, etc.
- GitHub: https://github.com/topics/sql
- Wikipedia: https://en.wikipedia.org/wiki/SQL
- Created by: Donald D. Chamberlin, Raymond F. Boyce
- Released: 1986
- Related Topics: database,
- Last updated: 2026-07-10 00:26:02 UTC
- JSON Representation
https://github.com/miroslaw-zieba/secure-query-handler
Secure Query Handler by Mirosław Zięba is a PHP class for secure, efficient SQL query management. Designed for robust database security, dynamic parameter validation, and transaction handling, it leverages parameterized queries to protect against SQL injection and maintain data integrity.
data-validation database-abstraction database-security error-logging miroslaw-zieba mssql multi-database-support mysql object-oriented-programming parameter-validation pdo php php-class postgresql query-builder secure-query-handler security sql sql-injection-prevention transaction-management
Last synced: 14 Apr 2026
https://github.com/jpcadena/tweets-classification-backend
FastAPI Backend for NLP Project on Tweets classification about national insecurity at Ecuador.
aiofiles aioredis async asyncpg backend classification-model fastapi gunicorn jwt-authentication postgresql pydantic python python-jose redis restapi sql sqlalchemy starlette tweets uvicorn
Last synced: 13 Apr 2026
https://github.com/iammshahbaz/destechnico
Simple ecommerce website Backened
Last synced: 04 Jan 2026
https://github.com/melvinernestosg/tarea-4-hacertutorialdesqlserveren2semanas
Developed by a person who knows very little about the database.
microsoft-sql-server sql sql-server
Last synced: 26 Oct 2025
https://github.com/b-abdrahman-code/teacher-salary-system-javafx
a JavaFX desktop app that calculates teacher salaries using inputs like base pay, time, and workload. It connects to a MySQL database, supports login, configuration saving, and offers a clean UI with real-time results, making payroll management efficient and user-friendly
css html java javafx management-system mysql mysql-database sql
Last synced: 29 Apr 2026
https://github.com/lilmorzz/sistema-lpsmart
Sistema Java de Vendas com Controle de Estoque para LPSmart.
Last synced: 31 Mar 2025
https://github.com/fvucemilo/recipe-app-api
Recipe API project
api-development continuous-deployment continuous-integration database devops django django-rest-framework docker docker-compose python python3 rest-api software-engineering sql tdd test-driven-development web-development
Last synced: 13 Apr 2026
https://github.com/fbarffmann/sql-challenge
Designed and queried a PostgreSQL employee database to analyze salary trends and organizational structure. Built ERD, created tables, and developed business-focused SQL queries.
data-cleaning data-modeling database-analysis employee-database erd postgresql salary-analysis sql
Last synced: 24 Apr 2025
https://github.com/arsalanazadkhah/nashville-housing
Nashville Housing Analysis Using SQL
Last synced: 23 Jan 2026
https://github.com/billgewrgoulas/sql-operators
Algorithms for UNION , MERGE-JOIN , INTERSECTION , SET-DIFFERENCE , GROUP-BY SQL operators
Last synced: 26 Oct 2025
https://github.com/suganyarajes/sql-react33
SQL (Structured Query Language) is a domain-specific language used for managing and manipulating relational databases.
Last synced: 01 Jun 2026
https://github.com/ndomah1/data-cleaning-in-mysql
This project cleans and standardizes a global dataset of tech layoffs using MySQL, transforming raw data into an analysis-ready format.
data-cleaning data-preparation layoffs mysql sql
Last synced: 25 Mar 2025
https://github.com/aabbtree77/imdb-sqlite-queries
Actor-director collab analysis based on imdb-sqlite.
analytics chatgpt counting film-directors h-index imdb imdb-sqlite queries relational-database sql sqlite3
Last synced: 23 Jan 2026
https://github.com/guilhermersouza34/sql_pt2
Projeto Criação de um banco de dados relacional com três tabelas principais: Produto, Cliente e Vendas. Foram estabelecidas relações entre essas tabelas para modelar cenários de vendas, onde produtos são vendidos para clientes registrados. Além disso, foram realizadas inserções de dados simulando registros de vendas e consultas
Last synced: 04 Jul 2025
https://github.com/nambukeerthi/youtube_dataproject
Build a Streamlit App – A user-friendly interface. Use Google API – Fetch YouTube channel data. Store in SQL Database – Save channel details for easy access. Search & Join Tables – Allow users to query and view data
api numpy pandas python sql streamlit
Last synced: 09 Apr 2026
https://gitlab.com/buckeye/bs-mysql2-relude
A wrapper for the MySQL2 interface using the Relude.IO monad.
bucklescript database mariadb mysql reasonml relude sql
Last synced: 26 Oct 2025
https://github.com/bagaffey/sql-server-tools
Microsoft SQL Server tools and utilities
microsoft ms-sql-server ms-sql-server-managment-studio sql sql-server
Last synced: 05 Sep 2025
https://github.com/sarthakagg29/sql-share-trading-analysis
Analysis of share trading transactions using SQL. Includes table setup, sample data, and a variety of queries to answer typical business questions about stocks and trading.
data-analysis dbeaver portfolio postgresql share-market sql
Last synced: 04 Jul 2025
https://github.com/souhiloo/personalbase.sgl
Manage your personal information with this PostgreSQL database. Track courses, finances, habits, tasks, and trips efficiently. 🌟📊
courses data-modeling erd finance-tracker habit-tracker personal-database postgresql relational-database sql trips
Last synced: 04 Jul 2025
https://github.com/darrendavy12/postgressql_retail_sales_data_pipeline-analytics
Online retail data set from kaggle, I used this for a project using PostgreSQL to demonstrate my knowledge in SQL and workarounds when using the pgadmin GUI or psql tool.
analytics data-engineering datacleaning ecommerce ingestion onlineretailanalysis postgres postgresql realistic-data sql transfrom
Last synced: 04 Jul 2025
https://github.com/shubhamsinghcmr/code-diverse
Here, you'll discover a versatile collection of code snippets spanning various programming languages. These snippets are crafted to be easily integrated into your projects, empowering you to efficiently address diverse programming needs across different applications.
android cloud csv custom-server java php python sql xml
Last synced: 12 Apr 2026
https://github.com/ghokun/database-playground
Database playground to test SQL queries
Last synced: 28 Feb 2025
https://github.com/wtmcgrew/sql-credit-risk-analysis
Credit Risk Analysis using SQL & Excel – Approval trends by FICO, DTI, PTI, LTV, and delinquencies.
case-study credit-risk data-analysis financial-analysis loan-applications portfolio-project sql sqlite underwriting
Last synced: 04 Jul 2025
https://github.com/animesshhh/Brick-Mortar-Business-Sales-Insights
This repo leverages SQL & Power BI to unlock sales insights & monitor target profit for a brick-and-mortar business.
data-analytics dax mysql powerbi sql sql-server
Last synced: 11 Mar 2025
https://github.com/sour-abh-raj/beginning-to-end-software-engineering-preparations-in-general
This is an ongoing repository of placements preparations in software engineering field from beginner to advanced level.
dsa dsa-learning-series dsa-practice dsa-questions mysql sql
Last synced: 16 May 2026
https://github.com/satvikpraveen/rsvp_case_study
A comprehensive IMDB dataset analysis using SQL. Includes database setup, advanced queries, and actionable insights. Organized with files for database creation, queries, and solutions. Features an Entity-Relationship Diagram (ERD), executive summary, and SQL scripts. Perfect for SQL workflows and business intelligence in the film industry.
aggregate-functions business-intelligence common-table-expressions data-analysis data-driven-decisions data-querying database-design entity-relationship-diagram imdb-dataset relational-database sql subqueries-and-joins
Last synced: 11 Jan 2026
https://github.com/darrendavy12/noaa-storm-events-analysis-postgresql-database
This project builds a PostgreSQL database to store and analyze the NOAA Storm Events Database
datacleaning dataengineering error-handling etl etl-pipeline pgadmin4 postgresql psql python python-script query-builder sql troubleshooting
Last synced: 17 Apr 2026
https://github.com/khalekuzzamancse/smartbuybackend
java jpa mvc rest-api restful-api spring-boot sql
Last synced: 12 Apr 2026
https://github.com/robindumontchaponet/reflexivequery
[WIP] Somewhat effective SQL query builder
database pdo php8 queries sql work-in-progress
Last synced: 27 Oct 2025
https://github.com/nihalsheikh/google_data-analytics
Google Data Analytics Specialization
dataanalytics datavirtualization rprogramming sql tableau
Last synced: 28 Jan 2026
https://github.com/binakot/timescaledb-error-distinct-on-single-object-array-and-second-order-by
Bug report to TimescaleDB about broken 'distinct on'
bug error planner postgres postgresql sql timescaledb
Last synced: 11 Apr 2026
https://github.com/muzamilofficial/ai-inventory-management-django-python
Looking for a complete inventory solution that not only simplifies stock management but also keeps you and your stakeholders informed? Look no further!
admin-dashboard artificial-intelligence django jupyter-notebook machine-learning modern-ui-ux nlp python smtp sql ui-ux-design web-application
Last synced: 25 Mar 2025
https://github.com/enyaude/integrated-project-maji-ndogo-part-2
Explore Maji Ndogo's water quality analysis project, where a detailed 60,000-record database is used to identify pollution hotspots and guide intervention strategies. Leveraging Python, MySQL, and Jupyter Notebook, this project uncovers patterns and addresses environmental issues, driven by the call for data-driven solutions by President Naledi.
jupyter-notebook mysql mysql-database python sql
Last synced: 07 Jan 2026
https://github.com/nemeslaszlo/benco-and-cramhead-study-cases
This repository contains my solutions for Benco and Cramhead study cases in hungarian language, using Oracle SQL and PL/SQL. (Oracle SQL Developer)
oracle-database oracle-sql-developer plsql sql
Last synced: 25 Feb 2026
https://github.com/rikiitokazu/dataprojects
Data analysis practice using SQL and Python
Last synced: 12 Apr 2026
https://github.com/sol-zeta/react-item-list
Item List for an Online Store
css database expressjs flex flexbox html javascript mysql node nodejs react reactjs sql styled-components styledcomponents
Last synced: 06 Feb 2026
https://github.com/jdrodas/powerrangersdb
Dominio de Problema y scripts de implementación de un modelo de datos para el curso introductorio de bases de datos relacionado con el universo de los Power Rangers
entity-relationship-diagram normalization sql
Last synced: 07 Jan 2026
https://github.com/hivesolutions/migratore
SQL based migration system with migration management
Last synced: 07 Jan 2026
https://github.com/nim579/docker-pyrseas
Pyrseas tool docker image
docker docker-image dockerfile migrations migrator postgres postgresql pyrseas sql yaml
Last synced: 12 Apr 2026
https://github.com/luis-domingues/challenge-ecommerce-schema
This project was developed as part of a challenge proposed by DIO in which the objective is to create a conceptual database for an e-commerce system
challenge dio mysql relational-databases sql sql-server
Last synced: 26 Feb 2026
https://github.com/ultrasage-danz/sql-free-to-paid-conversion-rate-project
Checkout this link for more projects
csv data-science mysql py python sql
Last synced: 07 Jan 2026
https://github.com/gowri-malla216/expense-tracker
A full-stack expense tracking application built using C# .NET Core (ASP.NET MVC) and JavaScript with CSHTML & Syncfusion Charts. It allows users to track expenses, manage categories, analyze spending trends, and visualize financial data using interactive charts.
csharp cshtml donet-core entity-framework-core restful-api sql
Last synced: 16 Mar 2025
https://github.com/karayamanemre/vet-clinic
Database example of a vet-clinic.
Last synced: 07 Apr 2025
https://github.com/shridhar1504/loan-classification-datascience-project
This project uses machine learning algorithms to predict the classification of loan status. The dataset is loaded and some transformation is done using SQL for getting a proper dataset with some valid informations.
classification data-analysis data-cleaning data-science data-visualization eda loan-prediction loan-status machine-learning predictive-modeling sql supervised-learning
Last synced: 09 Apr 2025
https://github.com/muhammed-fazal/student-success-and-early-intervention-analytics-system
To consolidate scattered student performance records into a unified Data Warehouse in SQL Server. Engineer an Interactive Power BI dashboards that visualize academic trends, identifying student performance and implement predictive analytics.
analysis analytics dashboard data data-analysis data-engineering data-science data-visualization database etl etl-pipeline power-bi powerbi python sql sql-server
Last synced: 29 May 2026
https://github.com/akshpraj/students-performance
analyze student performance data with SQL and then visualize it in Power BI. My goal is to make the data clear and actionable, helping educators and students make informed decisions.
Last synced: 29 May 2026
https://github.com/nikunjk9/system-performance-monitoring-and-visualization
A comprehensive solution designed to monitor and visualize system performance metrics in real-time. Technologies used are Python, SQL, Power BI.
monitoring performance powerbi python sql
Last synced: 16 Mar 2025
https://github.com/sambitos23/react-sql-editor
A web-based application capable of running SQL queries and displaying the results of said query.
react-ace react-csv react-hot-toast reactjs sql tailwindcss
Last synced: 25 Jun 2025
https://github.com/idakrech/balkan-quiz
Java-based CLI quiz app using MySQL – created for OOP exam at Kristiania University College.
cli java object-oriented-programming oop quiz sql
Last synced: 12 Jun 2025
https://github.com/space-lumps/oroboro-dw-dbt
This project builds a clean, BI‑ready table user_base in BigQuery
analytics-engineering bigquery business-intelligence ci-cd data-mart data-modeling dbt elt gcp geospatial jinja metabase sql yaml
Last synced: 04 Sep 2025
https://github.com/pokhiii/wc-queries
Beautiful queries for WooCommerce.
action-scheduler sql woocommerce woocommerce-subscription
Last synced: 30 Jan 2026
https://github.com/munyabelden/vet-clinic
This a database called Vet Clinic about animals. Contains animal names, date of birth, etc. Built with SQL
Last synced: 03 Apr 2025
https://github.com/munyabelden/database_from_diagram
This is a SQL database about a hospital, containing patients data. Built with SQL , PostgreSQL
Last synced: 03 Apr 2025
https://github.com/abhishekpsonawane07/sql_digital_music_store-data
SQL based project on Digital Music store, Solved 3 Sets of questions Ranging from Easy, Medium and Advance.
Last synced: 07 Jan 2026
https://github.com/NpgsqlRest/pgmigrations
Lightweight, Zero-Dependency, PostgreSQL Tool for Node.js and NPM.
javascript migrations nodejs postgresql schema sql testing
Last synced: 27 Oct 2025
https://github.com/ifrankxue/project_sql_job_data_analyst
Project following the tutorial course created by Luke Barousse, who is an amazing data instructor.
git github postgresql sql sqlite sqlserver vscode
Last synced: 11 Mar 2026
https://github.com/aaisha-nexus/sql_excel_project
A data analysis project using MS SQL Server and Excel, focusing on database setup, querying, data cleaning, and visualization with PivotTables & Charts. Explored real-world sales data, financial KPIs, and interactive dashboards.
charts dashboard data-visualization dataanalysis dataanalytics databases excel kpi mssqlserver pivot-tables queries sql
Last synced: 15 May 2026
https://github.com/asirialwis/event-management-system
A robust Event Management System using React (Frontend) and .NET (Backend), with MS SQL as the database.
asp-net-core csharp dotnet ef-core ef-core-migrations mvc-architecture reactjs rest-api sql sql-server web-api
Last synced: 11 Apr 2026
https://github.com/mstovarh/inflacion-en-colombia-2010-2018
En este repositorio se encuentra el análisis descriptivo que le realizamos a los datos de la inflación en Colombia desde el 2010 hasta octubre de 2023.
Last synced: 23 Jan 2026
https://github.com/ite-2022-pwr/ite-is-semestr-4
Semestr 4, studia inżynierskie: AiZO, PTM1, Sieci komputerowe, OiAK, WdWK, Bazy danych 1, NiDUC2
algorithms algorithms-and-data-structures assembler assembly computer-architecture cpp database go golang microprocessor networking oracle-database programming sql university university-project
Last synced: 30 Jan 2026
https://github.com/ascentis/foreach-db
PowerShell module to execute SQL scripts in each database in a single or multiple servers
parallel-programming powershell-module sql sql-server
Last synced: 14 May 2026
https://github.com/skm0626/algorithm
Solving at least one question every day!
Last synced: 15 Apr 2026
https://github.com/lukeskywalkerii/website
data-analysis data-visualization powerbi python r sql statistics
Last synced: 12 Apr 2026
https://github.com/iantomasinicola/indici-sql-server
Estrarre informazioni sugli indici di SQL Server
database indexdb sql sql-server
Last synced: 11 Mar 2026
https://github.com/riddhi2025/fees_management_system
Web-based application using Flask, SQL
css flask-application flask-restful html js python sql
Last synced: 12 Apr 2026
https://github.com/pavansai0514/jdbc
Java Programs to perform CURD operations with MYSQL Database
Last synced: 24 Jan 2026
https://github.com/sultanbadri/sql-zoo
SQL practice with SQL zoo exercises.
Last synced: 23 Jan 2026
https://github.com/harsh-arora-4114/e-commerce-data-analysis
Built and analyzed a relational database to derive insights on sales, customer behavior, and product performance. Used advanced SQL queries for data aggregation, trend analysis, and inventory monitoring. Strengthened skills in data visualization through queries and business reporting.
data-analysis-via-sql-queries relational-databases sql sql-data-visualization
Last synced: 03 Feb 2026
https://github.com/umairali254/lms_web-app_in_php
LMS site in PHP(JS/Ajax) with MIT license. Data is also included in database folder. You can use this application freely :)
api bootstrap css html javascript json mysql mysql-database php sql
Last synced: 12 Apr 2026
https://github.com/sandipmaurya2611/rail-pass-management-system-using-php-and-mysql
This repository contains a Customer Relationship Management (CRM) system generated using PHP, CSS, and MySQL. The CRM system is designed to help businesses manage their interactions with current and potential customers, track leads, and streamline sales processes.
Last synced: 12 Apr 2026
https://github.com/zainea-bogdan/data_engineer_project_wowcinema
WoWCinema is a project based on a fictional scenario where I stepped into the role of a Data Engineer, designing and building an end-to-end Data Infrastructure. A ETL pipeline ingests data from multiple sources, transforms it, and loads it into a centralized PostgreSQL data warehouse to power analytics, KPI tracking, and reporting
analytics big-data data datawarehousing etl-pipeline postgres python sql
Last synced: 19 May 2026
https://github.com/rachit1084/sql-practice-ankit-bansal
Personal SQL problem-solving practice based on Ankit Bansal's YouTube series, with logic-driven solutions for analyst prep.
analytics data-analysis data-analyst interview-preparation logical-reasoning postgresql sql sql-practice
Last synced: 04 Jul 2025
https://github.com/mraskends/poetystorage
A C# WinForms application for storing and reading poetry. Includes user login, registration, and customizable settings. Users and poems stored in a MySQL database. Built as a university coursework project.
csharp database desktop-app login-system mysql sql university windows-forms winforms
Last synced: 12 Apr 2026
https://github.com/igorconstant/sgsp
Composition of the SGSP Project - Federal Institute of Science and Technology of São Paulo.
css html java javascript php sql
Last synced: 13 Apr 2026
https://github.com/exbotanical/coalesce
Highly performant implementation of SQL `COALESCE` for JavaScript. Return the first value that is not null or undefined.
coalesce helper-functions micro-library sql validation-library
Last synced: 16 Oct 2025
https://github.com/vbalalian/littlefield
Combined web-scraping, loading, and reporting tool for Littlefield simulation, built for use with Google Cloud Run functions and Google Cloud Scheduler
bigquery cloud-functions extraction google-cloud-platform littlefield-simulation-game loading python reporting sql webscraping
Last synced: 14 May 2026
https://github.com/sayed-ashfaq/target-sql
In this project, I analyzed Target company's data using SQL in BigQuery, focusing on data extraction, manipulation, and performing various analytical queries to derive insights.
aggregation bigquery cte joins sql
Last synced: 09 Apr 2025
https://github.com/enescidem/form-db-system
A student management system on Microsoft SQL Server, managing data with basic SQL queries as well as advanced techniques like INNER JOIN, LEFT JOIN, Stored Procedures and Triggers.
csharp database database-management mssql-database sql sqlserver
Last synced: 05 May 2026
https://github.com/nikolatechie/spotify-playlist
Data pipeline that fetches recently played songs in the past 24 hours using Spotify API and saves the data in the SQLite database. Scheduled to run daily using Apache Airflow.
apache-airflow api data data-engineering python spotify sql sqlite
Last synced: 30 Apr 2026
https://github.com/andresilmor/airline-database
Introduction Project to the development of a SQL/Relational Database, using MySQL. From the Model Design till the implementation and test information insertion.
conceptual-model database first-timers mysql-database relational-databases sql sqlserver university university-project
Last synced: 22 Mar 2025
https://github.com/jurek-muszynski/bd1
Repository for lab exercises as part of Data Bases 1 class @ Warsaw University of Technology
Last synced: 24 Jan 2026
https://github.com/mina-faridi/database-project
Final project of database course, Dr Momtazi (fall 2020)
amirkabir database library-database mysql sql
Last synced: 17 May 2026
https://github.com/an4pdm/esquema-conceitual-para-banco-de-dados
Projeto feito para o bootcamp DIO "Formação SQL Database Specialist".
banco-de-dados entidade-relacionamento modelo-conceitual mysql sql sqlworkbench
Last synced: 01 Jun 2026