Tag: sql

How to Get SQL Percentage Calculation as Easy as Pie 

SQL Server, Work with data

Percentage calculation in SQL can be a bit like traversing an unfamiliar labyrinth. If you’re a...
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SQL Aggregate Functions: Easy Tips for Newbies

Database development, Statements

SQL Aggregate Functions are functions that perform calculations and return a summarized result. With these, it’s easy to do these...
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Tutorial Guide to Spark SQL: Great Tool for a Big Data Engineer

Frameworks, Languages & Coding

Understanding Spark SQL is extremely helpful for analyzing big data, especially when you’re working with the Spark platform. But what...
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SUBSTRING Command in SQL: A Primer

SQL Server

Similar to my article regarding the SQL Server STUFF command, today we will be examining the...
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SQL Server Primary Key

SQL Server

Across all major RDBMS products, Primary Key in SQL constraints has a vital role. They identify the records present in a table uniquely....
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NoSQL vs SQL: Which One is Better for Big Data Management?

Database administration, Work with data

Nowadays, customer behavior becomes more complex and market trends continue to shift rapidly. Thus, businesses need specialized...
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How to Use Array Functionality in SQL Server

Database administration, Work with data

Have you ever been asked how to create array in SQL Server? Or, you might be asked how to how to...
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Add Columns to an Existing Table in SQL Server Database

Database development, Tables

Introduction A table is a two-dimensional logical structure and the fundamental means of storing data in relational database management...
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Handling the NULL Values Effectively with the SQL COALESCE Function for Beginners

Database development, Statements, Tables

This article aims to help beginners understand the basics of the T-SQL COALESCE function and its application for handling NULL values....
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Using CASE Expressions in SQL Server

Database development, Statements

Introduction CASE Expressions in SQL Server are used for the column values substitution to present...
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