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Databases / SQL

SQL

1.5K+ posts

SQL Database Tuning

Last Updated: 21 January 2025

SQL Database Tuning involves a set of techniques and best practices designed to optimize database performance. By tuning a database, we can prevent it from becoming a bott...read more

Regular Expressions in SQL

Last Updated: 21 January 2025

Regular expressions (regex) are incredibly powerful tools that simplify complex data processing tasks. They enable users to identify, replace, or extract data based on spe...read more

Last Updated: 31 January 2025

Structured Query Language (SQL) is a powerful language used to manage and manipulate relational databases. One of the essential features of SQL is its clauses, which allow...read more

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Library Management Data Analysis using SQL

Last Updated: 10 February 2025

Managing a library efficiently requires a structured approach to organizing books, tracking borrowings, and analyzing user behavior. A well-designed Library Management Sys...read more

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Healthcare Data Analysis using SQL

Last Updated: 05 February 2025

Healthcare data analysis plays a vital role in enhancing patient care, improving hospital efficiency and managing financial operations. By utilizing Power BI, healthcare p...read more

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Music Store Data Analysis using SQL

Last Updated: 10 February 2025

Have you ever wondered how a music store keeps track of all its songs and artists? By exploring the store’s dataset, we can uncover useful information, such as the total n...read more

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SQL Exercises for Data Analyst

Last Updated: 27 February 2025

Structured Query Language (SQL) is an essential skill for data analysts which enables them to extract, manipulate and analyze data efficiently. Regular practice with SQL e...read more

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How Do Financial Analysts Use SQL?

Last Updated: 19 February 2025

In the world of finance, data plays a crucial role in making informed decisions. Financial analysts rely on various tools to extract, manipulate, and analyze data efficien...read more

Customer Behavior Analysis in SQL

Last Updated: 14 February 2025

Customer churn is a key indicator of business health, as it directly affects revenue and long-term sustainability. Identifying inactive customers early enables companies t...read more

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SQL for Business Analysts

Last Updated: 10 February 2025

In today’s fast-changing business world, data plays an important role in making decisions. SQL (Structured Query Language) helps business analysts get, study and manage da...read more

How to Create a Customer Segmentation Model in SQL

Last Updated: 15 April 2025

Customer segmentation is a powerful marketing strategy that enables businesses to categorize their customers into distinct groups based on shared characteristics and purch...read more

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30 SQL Interview Questions For Business Analyst in 2025

Last Updated: 14 February 2025

SQL is an essential skill for Business Analysts which helps them to retrieve and analyze data from databases. It enables them to generate reports, find trends, and support...read more

Time-Series Data Analysis Using SQL

Last Updated: 24 February 2025

Time-series data analysis is essential for businesses to monitor trends, forecast demand, and make strategic decisions. One effective method is calculating a 7-day moving ...read more

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Market Basket Analysis with SQL

Last Updated: 12 March 2025

Market Basket Analysis (MBA) is a powerful data mining technique used in retail and e-commerce to identify relationships between products frequently purchased together. By...read more

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Machine Learning

Calculate Moving Averages in SQL

Last Updated: 11 February 2025

In data analysis, smoothing out short-term fluctuations in time-series data is essential for identifying long-term trends. One effective method for achieving this is throu...read more

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