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Create a functional debugging environment to develop Structured Query Language solutions efficiently and troubleshoot SQL statements effectively. Use best practices to help perform maintenance, and to find and fix bugs when they do occur. Explore and familiarize yourself with SQL programming problems, learn to write code that's portable across databases, and realize efficiencies by expressing data in a variety of types. Develop the skills you need to debug SQL, and learn to move deftly and creatively around almost every limitation that SQL imposes on your operating environment.Write trouble-free SQL statements and procedures Optimize SQL statements and avoid problem areas Join and aggregate data and other SQL Select statements Debug and use practical regions and sequences Use and debug arrays, sets, and graphs Understand tree structures and hierarchies Secure data and protect response time Examine the appropriate use of data types Select, insert, update, and delete data using SQL syntax Recognize and mitigate fatal and logical errors Format SQL for single queries or extensive procedures using best practices