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they all refer to localhost.Join over 7 million developers in solving code challenges on HackerRank JUnit which reduces the 'query defining time'. Usage of simple java classes [Plain Old Java Objects ] makes this task simple instead of using entity beans / JDBC calls.Answer: Option A. Solution: SQL (Structured Query Language) is a special-purpose programming language designed for managing data held in a relational database management system (RDBMS). Originally based upon relational algebra and tuple relational calculus,

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