Welcome to CHOOLS ORACLE ASSESSMENT (YOU HAVE ONLY 30 MINUTES TO COMPLETE THIS PART [20 Questions]) **** Wishing You All The Best **** Instructions : To start the quiz, please provide your name, email id and phone number. All questions are mandatory* Answering each question is required before going on to the next page of questions. Your response is subject to change at any time. After completed the quiz click the submit button. If, once the time is up, it will be automatically submitted. The report will be mailed to your email address after the quiz is finished. 1. What is the purpose of the CASE statement in Oracle? To define a loop in PL/SQL To handle exceptions To create a virtual column To perform conditional logic in a query2. What is the purpose of the ROWID in Oracle? To uniquely identify a row in a table To store the row count in a table To specify the order of the result set To create a primary key3. Which SQL operator is used for pattern matching in Oracle? LIKE IN BETWEEN EXISTS4. Which SQL function is used to find the highest value in a column in Oracle? SUM MIN AVG MAX5. What is the purpose of the ORDER BY clause in Oracle? To filter rows in a query To sort the result set To group rows based on a column To join tables6. In Oracle, what is the purpose of the COMMIT statement? To undo changes made by the current transaction To permanently delete data from a table To commit the current transaction To create a savepoint7. What is the purpose of the ROLLBACK statement in Oracle? To undo changes made by the current transaction To permanently delete data from a table To commit the current transaction To create a save point8. Which function is used to find the minimum value in a column in Oracle? MIN AVG MAX SUM9. Which keyword is used to create an alias for a table or a column in Oracle? AS ALIAS NAME RENAME10. In Oracle, what does the term "DDL" stand for? Data Definition Language Data Description Language Database Definition Language Database Description Language11. Which clause is used to sort the result set in descending order in Oracle? DESC ORDER DESC SORT DESC DESCENDING12. What is the default sorting order in an ORDER BY clause in Oracle? Descending Ascending Random Alphabetical13. What is the purpose of the OUTER JOIN in Oracle? To exclude rows that do not meet the condition To include only rows that meet the condition To include all rows from both tables, even if there is no match To filter rows based on a condition14. In Oracle, what is the purpose of the SELECT statement? To update records To retrieve data To delete records To insert records15. Which SQL function is used to find the average value in a column in Oracle? AVG SUM MIN MAX16. Which Oracle command is used to commit the current transaction? ROLLBACK SAVEPOINT COMMIT BEGIN TRANSACTION17. What is the purpose of the CONSTRAINT keyword in Oracle? To specify a default value for a column To enforce referential integrity To create a virtual column To filter rows in a query18. Which statement is used to remove a table from the database in Oracle? REMOVE TABLE DELETE TABLE DROP TABLE ERASE TABLE19. Which statement is used to grant privileges to a user in Oracle? ALLOW GRANT GIVE PERMISSION20. Which statement is used to update data in a table in Oracle? CHANGE MODIFY UPDATE ALTER5 out of 4Time is Up!
