Data Analytics

Do you need coding to learn data analytics?

You can start learning data analytics before you know how to code. Spreadsheets let you organise information, calculate totals, and investigate a question. Coding becomes useful as your work grows, but the first skill to develop is knowing what you want to find out.

Start with a question you can answer

Imagine a small shop has a spreadsheet of orders. A useful starting question is: which products brought in the most revenue this month? Before making a chart, check what each row represents, whether dates are consistent, and whether returned orders should be included.

A chart can look convincing even when its source data is wrong. Learn to spot missing values, duplicate rows, inconsistent product names, and numbers stored as text. Write down the assumptions you make while cleaning the data.

Learn spreadsheets before adding more tools

Practise filtering, sorting, formulas, and PivotTables in Excel. Build a small summary that compares sales by product or week. Then explain the result in plain language: what changed, what might explain it, and what the data cannot tell you.

Power Query helps turn repeated cleaning steps into a process you can refresh. Power BI brings data models, measures, and interactive reports into the workflow. A useful dashboard answers a defined question; adding more charts does not automatically make it better.

Where SQL and Python fit

SQL helps you retrieve and combine information stored in databases. For example, you might join an orders table to a products table, group revenue by category, and check the result against the source totals.

Python is useful for tasks such as repeatable data preparation, exploration, and analysis across many files. You do not need to master every programming topic before beginning. Learn a small concept, use it on a dataset, and check that you can explain the output.

Try a first project

  1. Create a sample orders table with dates, products, quantities, and prices. Use invented data rather than private customer records.
  2. Clean the column formats and calculate revenue for each order.
  3. Summarise revenue by product and by week, then choose a chart that makes the comparison clear.
  4. Write three findings and one limitation. Include the cleaned data and your method with the report.

Keep the project small enough to finish. Being able to explain how you checked the numbers is more useful than showing a dashboard you cannot reproduce.

Choose a course by its learning sequence

Look for a curriculum that connects the tools to business questions and practical projects. Check the learning format, feedback arrangements, and time you can set aside for practice. A course should help you build understanding, not simply collect tool names.

OVTech's Data Analytics curriculum covers data fundamentals, Excel, Power Query, Power BI, SQL, and Python over 12 weeks. The course page explains the current cohort, projects, available formats, and regional fees.