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Write the command to list all the employees hired in 2003 and 2004. Sort the rows by the hire_date column in descending order. Show columns last_name, hire_date, phone_number, and dept_code in your results. Also, change the name of dept_code column to department_code.
Write an SQL query to get the author of the book "The Alchemist"
Indicate the changes (using the shorthand representation) that you would need to make to the original premiere products database desing to support the following requirements.
What is meant by cardinality of a relationship? Your answer requires to be thorough and specific. Be sure to include the two types of cardinality
What actions does a referential integrity constraint prevent from occurring when data is inserted in a table that contains this constraint?
our current database uses dictionary-managed tablespaces. In running various performance tuning scripts, you have discovered that one of these tablespaces seems to have run out of space long before you calculated that it would.
Implement a database of courses and students for a school.
Monitor Renal Outcomes in patients post cardiac bypass surgery?
What is lock granularity? Explain the use of BEGIN, COMMIT, and ROLLBACK TRANSACTION statements. Explain the meaning of expression ACID transaction.
Implement that entity as a database table with two subtypes, Games and Movie.
One of the tenets of database development is to never permit developers to create or own objects during development. All objects are created by application owner and stored in that schema.
Need a system that networks its 3 campuses in the US and one campus in Singapore. Transaction data for all campuses should be available to all locations. In addition, students should be able to use the Internet to view classes, enroll, register, and ..
Find the average number of books borrowed per member. Take into account that if a member does not borrow any books, then that member does not appear in the borrowed relation at all.
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