Alex Freberg carried out a survey in 2022 on data professionals to find out their job titles, current annual salary, the industry they work in, their favorite programming language, and lots more. I worked on the project following his guidance in the data analyst boot camp for beginners on YouTube and the following were the key findings from the analysis:
- The top favorite programming language was Python
- More than half of the respondents were happy with their work/life balance
- Most people were not happy with their salary
- About 7% found it very difficult to get their first data role
- The top three earners were data scientists, data engineers, and data architects
In this second project, I explored the data from BusinessFinancing.co.uk on the world's oldest businesses: when were they founded, and which industries do they belong to?
Like many business problems, the data is in several different datasets. I used joins to merge the data. From there, I used manipulation tools such as grouping and filtering to answer questions about these historic businesses.
For visualization purposes, I connected the data on SQL Server to PowerBI and used the DAX function to create new columns: category count and count of businesses.
Key Findings
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The oldest business in the world was founded back in 578. That's pretty incredible that a business has survived for more than a millennium.
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Six businesses were founded before 1000.
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The top 6 oldest companies belong to the following categories: construction, cafe, winery, bar, and two belong to the manufacturing and production of currencies.
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The oldest businesses are in 6 continents: Asia, Europe, North America, South America, Africa, and Oceania.
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The category with the highest number of businesses is Banking & Finance, with 17 in Africa.
