Questions from Database Management

Q: Match the following terms to the appropriate definitions: - referential

Match the following terms to the appropriate definitions: - referential integrity constraint - SQL: 2016 - Null value - scalar aggregate - vector aggregate - catalog - schema - host language a. list o...

Q: How is the HAVING clause different from the WHERE clause?

How is the HAVING clause different from the WHERE clause?

Q: In what clause of a SELECT statement is an IN operator used

In what clause of a SELECT statement is an IN operator used? What follows the IN operator? What other SQL operator can sometimes be used to perform the same operation as the IN operator? Under what ci...

Q: How do you determine the order in which the rows in a

How do you determine the order in which the rows in a response to an SQL query appear? What options do you have when specifying this order?

Q: Contrast transactional and analytical data management approaches.

Contrast transactional and analytical data management approaches.

Q: Investigate whether the organization follows more of a traditional file processing approach

Investigate whether the organization follows more of a traditional file processing approach or the database approach to organizing data. How many different databases does the organization have? Try to...

Q: Explain why SQL is called a set-oriented language.

Explain why SQL is called a set-oriented language.

Q: What considerations should be kept in mind when using indexing?

What considerations should be kept in mind when using indexing?

Q: What is an identity column? Explain the benefits of using the

What is an identity column? Explain the benefits of using the identity column capability in SQL.

Q: SQL:2006 and SQL:2008 introduced a new key word

SQL:2006 and SQL:2008 introduced a new key word, MERGE. Explain how using this key word allows one to accomplish updating and merging data into a table using one command rather than two.