I need these SQL - SHORT ANSWER questions answered as soon a possible, please.

Thank you in advance!

QUESTION 13 What can be added to the below query to skip the first 10 records before fetching the results (mention only the missing portion of the query highlighted by underlined blank space in your answer, do not write the whole query)? SELECT * FROM departments ORDER BY dept_id FETCH NEXT 20 ROWS ONLY; QUESTION 14 An Inverse Full join can be considered as being the complement of QUESTION 15 In the below query, which line number will throw an error (mentioned only the line number in your answer, do not mention any part of the query)? 1. SELECT student id, 2. marks, 3. round(100 * marks / 20, 2) AS grade 4. FROM marks 5. WHERE grade > 50 6. AND ROWNUM JOIN

USING ( FROM JOIN ON = = 1000 ORDER BY first_name II" | last_name QUESTION 21 An employee table has the below columns employee_id-primary key column first_name- not null column - last name - not null column . phone - unique column emall-unique column office code Which of the above columns is the most suitable one to be used in the WHERE cause of the below query (mention just the name of the column in your answer)? UPDATE employees SET last name = 'Sen' WHERE QUESTION 22 Write an equivalent single SQL statement which can replace the below 2 SQL statements. DELETE FROM countries, COMMIT