Big Data and AI

Scenario You are a BI analyst for a grocery store chain monitoring dietary trends that influence in‑store purchases. Your company wants you to analyze which types of Hass avocados are purchased most often. Avocados are categorized into four sizes—small, medium, large, and extra large—and each sale includes the average price, total volume, and date. Using this dataset, you will create a historical table to demonstrate how partitions and clusters work in BigQuery. Your goal is to answer the question: What is the distribution of avocado sales from 2015 to 2021? Create a Baseline Table (No Partition, No Cluster) Start by creating a new table without partitions or clustering. This baseline will help you compare performance later. Name the table avocados . After running the SQL, your table should look like this: Create a Partitioned Table Next, create a table partitioned by an integer range representing the years 2015–2022. Name this table avocados_partitio...

Experiential learning is a form of education that involves learning by doing. It is based on the idea that people learn best when they are actively engaged in a meaningful task that reflects real-world situations and challenges. Experiential learning can take many forms, such as internships, projects, simulations, games, field trips, service-learning, and more. One of the benefits of experiential learning is that it can help you develop transferable skills. These are skills that can be applied from one job to another, regardless of the industry or sector. Transferable skills are highly valued by employers because they demonstrate your ability to adapt, learn, and solve problems in different contexts. Some examples of transferable skills are: • Communication : The ability to express yourself clearly and effectively in oral and written forms, as well as listen and respond to others. • Collaboration : The ability to work well with others, respect diverse perspecti...

If you are a business intelligence (BI) professional, you know how important it is to understand the needs and expectations of your clients and stakeholders, and to plan your project accordingly. In this post, you will learn how to create two essential documents for any BI project: a Stakeholder Requirements Document and a Project Requirements Document. A Stakeholder Requirements Document is a document that summarizes the information you gather from your client and other stakeholders about the business problem they want to solve, the goals they want to achieve, the data they have available, and the constraints they face. It helps you to define the scope and objectives of your project, identify the key stakeholders and their roles and responsibilities, and ask relevant questions to clarify their requirements and expectations. A Project Requirements Document is a document that outlines the details of your project, such as its purpose, audience, features, dependencies, success c...

If you are a business intelligence (BI) professional, you know how important it is to have a strong set of skills and experience that can help you deliver data-driven insights and solutions to businesses. But how can you prove your value and stand out from the crowd in this competitive field? The answer is simple: you need a portfolio of projects . A portfolio of projects is a collection of work samples that showcase your BI skills and achievements. It can include reports, dashboards, visualizations, code snippets, case studies, blog posts, videos or any other format that demonstrates your BI capabilities. A portfolio of projects can benefit you in many ways: • It can help you land your dream job or project. A portfolio of projects can show your potential employers or clients what you can do for them, how you approach BI problems, what tools and techniques you use, and what results you have achieved. It can also help you highlight your stren...