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Oracle Introduction to Oracle9i: SQL Sample Questions:

1. Which SQL statement displays the date March 19, 2001 in a format that appears as "Nineteenth of March 2001 12:00:00 AM"?

A) SELECT TO_CHAR(TO_DATE('19-Mar-2001', 'DD-Mon-YYYY), 'fmDdspth "of" Month YYYYfmtHH:HI:SS AM') NEW_DATE FROM dual;
B) SELECT TO_CHAR(TO_DATE('19-Mar-2001', 'DD-Mon-YYYY'), 'Ddspth "of" Month YYYY fmHH:MI:SS AM') NEW_DATE FROM dual;
C) SELECT TO_CHAR(TO_DATE('19-Mar-2001', 'DD-Mon-YYYY'), 'fmDdspth "of" Month YYYY HH:MI:SS AM') NEW_DATE FROM dual;
D) SELECT TO_CHAR(TO_DATE('19-Mar-2001', 'DD-Mon-YYYY'), 'fmDdspth "of" Month YYYY fmHH:MI:SS AM') NEW_DATE FROM dual;

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

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

3. Examine the structures of the EMPLOYEES and TAX tables.

You need to find the percentage tax applicable for each employee. Which SQL statement would you use?

A) SELECT employee_id, salary, tax_percent FROM employees e, tax t WHERE e.salary BETWEEN t.min_salary AND t.max_salary;
B) SELECT employee_id, salary, tax_percent FROM employees e, tax t WHERE MIN(e.salary) = t.min_salary AND MAX(e.salary) = t.max_salary
C) You cannot find the information because there is no common column between the two tables.
D) SELECT employee_id, salary, tax_percent FROM employees e, tax t WHERE e.salary > t.min_salary, tax_percent

4. Which statement correctly describes SQL and /SQL*Plus?

A) SQL manipulates data and table definitions in the database; /SQL*Plus does not allow manipulation of values in the database.
B) /SQL*Plus recognizes SQL statements and sends them to the server; SQL is the Oracle proprietary interface for executing SQL statements.
C) Both SQL and /SQL*plus allow manipulation of values in the database.
D) /SQL*Plus is a language for communicating with the Oracle server to access data; SQL recognizes SQL statements and sends them to the server.

5. SELECT *
From orders;
You use this statement to retrieve data from a data table for __________. (Choose all that apply)

A) Inserting
B) Deleting
C) Updating
D) Viewing
E) Truncating

Solutions: