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Hope this article will help you to take a quick practice whenever you are going to attend any interview and not have much time to go into the deep of each query, but if you have good time to prepare then I suggest you to read and solve SQL queries from Joe Celko' s SQL Puzzles and Answers, Second edition, one of the best book for SQL query lovers and this article, we' re covering some basic 15 MySQL Interview Questions that might be very useful to you in terms of database administration. SQL is a database computer language designed for the retrieval and management of data in a relational database.