From the course: Learning Data Analytics: 1 Foundations

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Understanding source data

Understanding source data

- [Instructor] It is so important to understand source data, and it's also important to understand the source of the data you're working with. Where did it come from and how did you receive it? Systems that people use at work are often powered by databases or capture data and place it into databases. In a perfect world, we would always be working with the source of the data. Sometimes working with the source is a challenge due to data governance, or even how it's structured in a system. Source data is where data is first initiated, and the hope is that is the most accurate compared with maybe say second-hand data. In today's environment, with needing data from multiple sources, you may find you're working with data that's stored in a data warehouse or some other data system that ensures you have the datasets you might need. This may come from another person who has access to the original source data, or you may be able to export it out of a system. But in the end, it's all part of the…

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