Category Archives for "Data Analysis"

Extracting Zip Codes from Data in SQL

When dealing with large datasets, particularly those related to addresses or geographical locations, there’s a good chance you’ll need to extract or work with zip codes. SQL, as a powerful language for managing and querying databases, offers a range of tools and techniques to help you handle zip codes efficiently. 1. Basics of Zip Codes […]

SQL Union vs Union ALL

Union and Union All are two of the most important functions you will come across in SQL. There are must-to learn and easy to master. So I am going to provide you with a a few examples of using these SQL functions. Here’s what we’ll cover: What is the Difference between Union and Union All […]

3 Ways to RANK Data in SQL

What are the Ranking Functions in SQL There are 3 simple functions that you can use to rank data in SQL. If you are in a rush and want to dive right into learning how to use these ranking functions in SQL. Check out the YouTube short: Here are the ranking functions that will show […]

Analysis vs Analytics

Have you ever wondered if these two terms are different or the same? Let’s explore the details and use cases. In a nutshell, while both analysis and analytics are vital in the modern world, they serve different purposes. Analysis is about understanding and interpreting data to explain past or current phenomena. In contrast, analytics is […]

How to Pick the Right Analysis for Your Use Case

Entering the world of data analysis can be very confusing. However, the spectrum of techniques helps to address several use cases. Let’s explore all the different types of analysis that are used in data analysis. However, this list isn’t exhaustive but it will cover the fundamentals. Types of Analysis Description Comparison Prediction Time Series Categorization […]

What is an Outlier – Understanding and Detection

What is an Outlier? An outlier is a data point that differs significantly from other observations. Whether due to genuine variance or errors in data collection, outliers stand out from the rest. Why are Outliers Important? Outliers can skew results, misleading interpretations or significantly affecting statistical measures. Hence, it’s essential to detect and address them […]

What Do Data Analysts Actually Do

Contrary to popular belief, data analysts don’t spend most of their time analyzing data. This is just a portion of what you are tasked to do. Remember you are a part of a team. So there are going to be meetings, requirements conversations, presentations,s and reporting that will take a large portion of your time. […]

How to Analyze Data | Step-by-Step Guide

The hardest part of data analysis is sometimes knowing how or what to analyze. This a make or break skill for any data analyst. However, it can be challenging to know where to start and how to ensure you’re making the right conclusions. In this blog post, we will guide you through the six steps […]

SQL Queries for Data Analyst

As a data analyst or data scientist, knowing the right SQL queries can help you get the data you need from your database tables quickly and easily. Whether you’re a new user or a pro, you need to know how to use the basic SQL queries to analyze and change data. In this blog post, […]