Resources for learning about databases

A data scientist spends a lot of time dealing with the data and getting it in and out of databases. There are some good resources for learning SQL and MapReduce. On Coursera there is the course Introduction to Databases which mainly deals with relational databases and SQL (queries, normal forms, constraints & triggers, views, etc.). Coursera also offers a Data Science course where, among the many interesting topics, they spend some time discussing MapReduce. If you want to practice with the ideas of MapReduce there is JSMapReduce where you can play around with python or Javascript code.

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