Tag: technology

Quizzes (307) Questions (36705)

Questions Related to technology

Multiple choice technology databases

Evaluate these two SQL statements: 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

  1. The two statements produce identical results.

  2. The second statement returns a syntax error

  3. There is no need to specify DESC because the results are sorted in descending order by default

  4. The two statements can be made to produce identical results by adding a column alias for the salary column in the second SQL statement.
Reveal answer Fill a bubble to check yourself
A Correct answer
Full explanation
Multiple choice technology databases

You would like to display the system date in the format "Monday, 01 June, 2001". Which SELECT statement should you use?

  1. SELECT TO_DATE(SYSDATE, 'FMDAY, DD Month, YYYY') FROM dual;

  2. SELECT TO_CHAR(SYSDATE, 'FMDD, DY Month, 'YYYY') FROM dual;

  3. SELECT TO_CHAR(SYSDATE, 'FMDay, DD Month, YYYY') FROM dual;

  4. SELECT TO_CHAR(SYSDATE, 'FMDY, DDD Month, YYYY') FROM dual;

  5. SELECT TO_DATE(SYSDATE, 'FMDY, DDD Month, YYYY') FROM dual;
Reveal answer Fill a bubble to check yourself
C Correct answer
Full explanation