- 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.
- 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 compile the SQL Queries developed.
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