From the course: Twelve Myths About Data Science

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Big data will replace my relational databases

Big data will replace my relational databases

From the course: Twelve Myths About Data Science

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Big data will replace my relational databases

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- One myth about big data is that it will replace your need for relational databases. Those are the traditional databases that have been around for 30 or more years. To understand this, we need to understand the CAP theorem and the CAP theorem starts with a C, which stands for consistency. This means that whenever we read data from the system, we'll get a consistent answer. If we issued two queries at the exact same time, they would return the exact same result. If we move up our triangle here to the A in the CAP theorem, this stands for availability. Now, availability in this context means that the system is always available and we can query it constantly. At times, certain assets in our platform may become locked or inaccessible, but overall the system continues to run. We denote these systems here with a CA and we see our traditional database system here, such as SQL Serve, Oracle, and MySQL. This is a quote, unquote regular database that we've been used to working with for over 30…

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