SQL

Top 5 Ways to Improve SQL Queries

What is Performance tuning Performance tuning in SQL is the practice of ensuring SQL queries run as fast as possible. SQL Performance tuning can be difficult, especially when working with large amount of data. SQL performance tuning is handled by Database Administrators (DBA’s) in large corporations. However, to improve the speed of data retrieval with …

SQL For Data Science

The understanding of data trends, patterns, attributes and its relationship to human behavior and business is a result of data-driven cycle in analytics. Data Science revolves around data. We associate quarterly and annual growth of businesses based on data received which are facts to help make business decisions. Most improved business methodologies are data-driven. So, …

SQL Query to Reduce Redundancy of Data

What is Data Data is a collection of words, images, sound, letters and observations for analysis, reference and research purpose. What is Redundancy in Data Data redundancy is the duplication of data in a table or database. When data is duplicated we consume more memory space in storage devices . Back-up storage devices can be …