Which of the following is an iSQL*Plus command?

Examine the code given below: SELECT employee_id FROM employees WHERE commission_pct=.5 OR salary > 23000 Which of the following statement is correct with regard to this code?

Examine the two SQL statements given below: SELECT last_name, salary, hire_date FROM EMPLOYEES ORDER BY salary DESC; SELECT last_name, salary, hire_date FROM EMPLOYEES ORDER BY 2 DESC; What is true about them?

What will happen if you query the emp table shown below: selectempno,DISTINCTename,Salary from emp;

How many join conditions should be there to avoid a Cartesion Join for joining three tables?

Which operator will be evaluated first in the statement: select (2+3*4/2-8) from dual:

Which data dictionary view holds information about the column in a view?

Top N analysis requires _____ and _____.

What does the TRUNCATE statement do?

Which of the following views should a user query to display the columns associated with the constraints on a table owned by the user?

Which of the following SELECT statements will get the result 'elloworld' from the string 'HelloWorld'?