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Oracle Introduction to Oracle9i: SQL Sample Questions:

1. A subquery can be used to _________.

A) Convert data to a different format
B) Retrieve data based on an unknown condition
C) Sort data in a specific order
D) Create groups of data

2. In which case would you use a FULL OUTER JOIN?

A) You want all matched and unmatched data from only one table.
B) You want all matched data from both tables.
C) You want all unmatched data from both tables.
D) Both tables have NULL values.
E) You want all unmatched data from one table.
F) One of the tables has more data than the other.

3. What does the FORCE option for creating a view do?

A) creates a view even if the underlying parent table has constraints
B) creates a view with constraints
C) creates a view in another schema even if you don't have privileges
D) creates a view regardless of whether or not the base tables exist

4. Examine the statement:
Create synonym emp for hr.employees;
What happens when you issue the statement?

A) You will have two identical tables in the HR schema with different names.
B) You create an alternative name for the employees table in the HR schema in your own schema.
C) You create a table called employees in the HR schema based on you EMP table.
D) An error is generated.

5. Which two are attributes of iSQL*Plus? (Choose two)

A) /SQL*Plus commands are accessed from a browser.
B) /SQL*Plus commands cannot be abbreviated.
C) /SQL*Plus commands manipulate table definitions in the database.
D) /SQL*Plus commands are used to manipulate data in tables.
E) /SQL*Plus is the Oracle proprietary interface for executing SQL statements.

Solutions: