9 Jul 2024 Maria Durkin SQL vs. MySQL: What’s the Difference? Are SQL and MySQL the same thing? In this beginner-friendly guide, we'll explain the ddifferences of SQL and MySQL – and how they fit into the larger picture of relational database management systems. When you’re getting started with databases, it’s easy to feel overwhelmed by the terminology. SQL, MySQL, other acronyms… It can be a lot. And sometimes – like SQL and MySQL – the terminology can seem more similar than different. Read more 4 Jun 2024 Maria Durkin The SQL BETWEEN Operator SQL comparison operators are essential tools for filtering data in database queries. Among these operators, the BETWEEN operator stands out as an important tool for specifying ranges inside datasets. SQL comparison operators, such as BETWEEN, are useful for filtering data in database queries. The BETWEEN operator allows you to select rows within a given range, making it ideal for tasks like segmenting an audience by age ranges, identifying thresholds for items between certain quantities, or categorizing performance based on exam scores. Read more 2 May 2024 Maria Durkin The Data Analysis Lifecycle: From Dataset to Presentation In today's fast-paced decision-making climate, data is an invaluable resource. Raw data is like a rough diamond: it has great potential, but it must be processed to reveal its true brilliance. Achieving this brilliance is where the data analysis lifecycle comes in. The data analysis lifecycle maps out a structured journey of five steps: Collection Cleaning Analysis Interpretation Presentation Mastering the right tools for each step is key, and that's where SQL proves indispensable. Read more 16 Apr 2024 Maria Durkin 25 SQL Interview Questions for Data Analysts You have an upcoming interview for a data analyst position and SQL is one of the skills that will be tested. Well, these SQL questions for data analysts are specifically tailored for you! SQL is a must-have skill in every data analyst's toolkit. It simplifies data extraction and manipulation, allowing analysts to convert raw data into actionable insights. It enables analysts to perform ad hoc analyses, accelerating organizational decision-making processes. Read more 2 Apr 2024 Maria Durkin Building a Data Analyst Portfolio: All You Need to Know In a competitive job market, it is not enough to simply have the necessary skills; you must also demonstrate them. This is where a well-crafted data analyst portfolio comes into play. In data analytics, a portfolio is more than just a collection of projects; it serves as proof of an analyst's abilities and is critical to standing out. It demonstrates concrete capabilities in data cleaning, analysis, and visualization as well as the ability to effectively communicate insights. Read more 5 Mar 2024 Maria Durkin What Is CROSS JOIN in SQL? What is a CROSS JOIN in SQL, and when should you use it? We answer those questions – and give you some examples of CROSS JOIN you can practice for yourself – in this article. Imagine you're looking through your wardrobe for outfit ideas, wondering which top to wear with which bottom. When you think of the perfect outfit, you envision all of the tops and bottoms in your closet combined. Read more 15 Feb 2024 Maria Durkin SQL HAVING Clause: A Tutorial for Beginners So, you're new to SQL and have just stumbled upon the HAVING clause. But what does it do? Why is it essential? In this article, we'll delve into the basics of the HAVING clause in SQL. And we’ll walk through practical exercises to enhance your understanding of its functionality. Let's start by defining Structured Query Language (SQL). SQL is a powerful and standardized programming language designed specifically for managing and manipulating relational databases; simply put, it is how we communicate with the databases that hold all of our important data. Read more 31 Jan 2024 Maria Durkin This Advanced SQL Course Will Boost Your Career! Can you already create pretty good SQL reports? Do you want to take it a step further? In this article, I'll explain how an advanced SQL course can propel you (and your career) to the next level. Since you are looking for information about SQL, you probably already know how important data is nowadays. Very few companies can stay on the market without using the power of data or basing their strategic decisions on it. Read more 23 Jan 2024 Maria Durkin Business Analyst vs Data Analyst: Roles & Career Paths Are you interested in working as a data analyst or business analyst? What’s the difference between these two roles? We explain the data analyst vs. business analyst debate in this article – and give you a pathway for success in either job. The demand for individuals skilled in decoding complex data has reached new heights in the ever-changing business landscape. Among the many roles available, business analysts and data analysts each have their own responsibilities, skill sets, and career paths. Read more 16 Jan 2024 Maria Durkin SQL CASE WHEN Explained: 10 Easy Examples for Beginners The CASE WHEN statement lets us make decisions on our data, categorizing and manipulating records based on specified conditions. Find out how to use CASE WHEN in this article. Imagine you're deciding what to wear for the day. You take out your umbrella if it's raining; if not, you leave it at home. This decision-making procedure is essentially the same as a SQL CASE WHEN statement. In the realm of SQL, the CASE WHEN statement functions much like an if-then-else expression, allowing us to create custom classifications within a query. Read more «« « 1 2 3 » »»