Oracle Nihileswaran No Comment 10Feb Share 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 default sorting order in an ORDER BY clause in Oracle? Descending Ascending Random Alphabetical2. Which data type is used to store variable-length character strings in Oracle? CHAR VARCHAR CLOB BLOB3. Which keyword is used to create an alias for a table or a column in Oracle? AS ALIAS NAME RENAME4. What is the purpose of the NVL function in Oracle? To convert a value to uppercase To replace NULL with a specified value To concatenate two strings To find the length of a string5. Which statement is used to add a new column to an existing table in Oracle? ADD COLUMN CREATE COLUMN ALTER TABLE ADD COLUMN INSERT COLUMN6. Which function is used to find the minimum value in a column in Oracle? MIN AVG MAX SUM7. In Oracle, what is the purpose of the SAVEPOINT statement? To undo changes made by the current transaction To create a checkpoint within a transaction To commit the current transaction To create a subquery8. In Oracle, which operator is used to combine the result sets of two or more SELECT statements? UNION JOIN CONCAT MERGE9. What is the purpose of the HAVING clause in Oracle? To filter rows in a query To filter columns in a query To filter groups in a query To filter results based on a condition10. Which function is used to convert a character string to uppercase in Oracle? UPPER LOWER INITCAP UCASE11. Which statement is used to update data in a table in Oracle? CHANGE MODIFY UPDATE ALTER12. 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 condition13. What is the purpose of the WHERE clause in a SQL query? To specify the order of the result set To filter the rows returned by a query To join tables To group rows based on a column14. 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 point15. Which statement is used to delete data from a table in Oracle? DELETE REMOVE DROP TRUNCATE16. Which SQL function is used to find the highest value in a column in Oracle? SUM MIN AVG MAX17. What does SQL stand for? Structured Language Standard Query Language System Query Language Sequential Query Language18. In Oracle, what does the term "DDL" stand for? Data Definition Language Data Description Language Database Definition Language Database Description Language19. 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 key20. Which statement is used to remove a table from the database in Oracle? REMOVE TABLE DELETE TABLE DROP TABLE ERASE TABLE5 out of 4PreviousNextTime is Up! Previous Postgre SQL February 10, 2024 Next Bootstrap February 10, 2024 You Might Also Like Hello world CHOOLS No Comment How to Disable Avast Antivirus CHOOLS No Comment AVG Review — Is the Absolutely free Version As effective as the Premium Version? CHOOLS No Comment Understanding the Limitations of Models of Managing CHOOLS No Comment Careers Similar To Teaching CHOOLS No Comment
