Advanced SQL and PL / SQL

  Advanced SQL and PL / SQL Relational Set Operators" respond to the following: 0 A relational Database Model allows database users to analyze data thoroughly. To accomplish this, advanced commands such as UNION and INTERSECT may be used. Describe a business scenario where a UNION relational set operator may be used to merge two similar data sets. Within the context of your business scenario, analyze the analysis and data consistency advantages of using a UNION operator rather than simply merging two data sets into one result table. 0 Suppose you are tasked with finding common data elements amongst various data sets. Specify how an INTERSECT operator may assist you in accomplishing this task Construct a query that can perform the same function as the INTERSECT operator without using the “INTERSECT” syntax within the query. Note: The Strayer Oracle Server may be used to test and com pile the SOL Queries developed. Advanced SOL and PL / SOL" Please respond to the following: 0 Extracting and interpreting data can be very valuable to an organization. Describe the importance of using sub queries in a database system. Provide at least two business case scenarios to support your response. 0 A good IT professional is able to be versatile in SQL programming styles. Identify at least two possible advantages of utilizing PL / SOL instead of standard SOL Syntax Explain whether either syntax provides enhanced code processing capabilities with examples. Note: The Strayer Oracle Server may be used to test and com pile the SQL Queries developed