admin Oct, Wed, 2024 EXAM MYSQL 123456789101112131415161718192021222324252627282930313233343536373839404142434445 Exam Instructions: Total Number of Questions: 45 You will be required to answer a total of 45 multiple-choice questions. Time Limit: 15 minutes for the entire exam Once the time is up, the exam will automatically submit. Passing Criteria: A minimum score of 50% is required to pass the exam Multiple Attempts: You are allowed to take the exam multiple times. Only your highest score will be considered for certification. Additional Instructions: The exam timer cannot be paused once it begins. Good luck, and feel free to retake the exam to improve your score! MYSQL Test your MYSQL skills with a challenging exam designed to evaluate your knowledge in programming, data structures, and algorithms The certificate will be generated based on the information you provide in the form, so please ensure that all details are entered correctly. NameEmailPhone NumberUniversityCollegeDegreeDepartmentPass Out YearPass Out Year2014201520162017201820192020202120222023202420252026202720282029 1 / 45 1) What is the purpose of the GROUP_CONCAT() function in MySQL? A) Joins multiple tables B) Counts unique values C) Combines multiple row values D) Sorts data 2 / 45 2) How do you implement a self-join in MySQL? A) Joins tables B) Deletes records C) Alters data structure D) Compares records in the same table 3 / 45 3) What is the purpose of the RENAME TABLE statement in MySQL? A) Updates data B) Renames a table C) Joins multiple tables D) Deletes the table 4 / 45 4) How do you set the default value for a column in MySQL? A) Sets default value B) Removes column C) Modifies data type D) Alters column 5 / 45 5) What is the purpose of the DEFAULT keyword in MySQL? A) Sets default value B) Deletes value C) Clears value D) Alters value 6 / 45 6) How do you use the SUBSTRING function in MySQL? A) Deletes records B) Joins tables C) Retrieves part of a string D) Alters data structure 7 / 45 7) How do you find the second highest salary from a salary table in MySQL? A) ORDER BY B) Subquery C) COUNT D) JOIN 8 / 45 8) How do you create a view in MySQL? A) ADD VIEW B) MODIFY VIEW C) DROP VIEW D) CREATE VIEW 9 / 45 9) What does the REPLACE() function do in MySQL? A) Replaces substring B) Filters values C) Joins strings D) Counts characters 10 / 45 10) How do you use the REPLACE() function in MySQL? A) Replaces substring B) Joins strings C) Counts occurrences D) Filters values 11 / 45 11) Which MySQL function is used to find the smallest value in a column? A) MIN() B) MAX() C) AVG() D) COUNT() 12 / 45 12) Which MySQL function is used to return the current date? A) NOW() B) CURDATE() C) CURRENT_DATE D) DATE() 13 / 45 13) What does the RAND() function do in MySQL? A) Returns integer B) Returns string C) Returns date D) Returns random number 14 / 45 14) What is the purpose of the DELETE statement in MySQL? A) Updates records B) Joins tables C) Inserts records D) Removes records 15 / 45 15) What does the SUBSTRING function do in MySQL? A) Replaces substring B) Counts characters C) Joins strings D) Extracts substring 16 / 45 16) What does the term “data migration” refer to in MySQL? A) Alters data structure B) Joins tables C) Transfers data between databases D) Deletes records 17 / 45 17) What is the purpose of the BETWEEN operator in MySQL? A) Groups records B) Joins tables C) Sorts results D) Filters range 18 / 45 18) What is the purpose of the ROLLBACK statement in MySQL? A) Restores previous state B) Alters data structure C) Joins tables D) Deletes records 19 / 45 19) What is the purpose of the EXPLAIN statement in MySQL? A) Analyzes query performance B) Deletes records C) Joins tables D) Modifies queries 20 / 45 20) How do you implement a stored procedure in MySQL? A) Joins tables B) Encapsulates business logic C) Alters data structure D) Deletes records 21 / 45 21) What is the purpose of the ORDER BY clause in MySQL? A) Filters data B) Sorts the result set C) Groups records D) Joins tables 22 / 45 22) What is the purpose of the COUNT function in MySQL? A) Joins tables B) Counts matching rows C) Filters records D) Deletes data 23 / 45 23) What does the IF() function do in MySQL? A) Counts values B) Joins values C) Evaluates conditions D) Sums values 24 / 45 24) How do you insert data into a MySQL table? A) UPDATE ROW B) INSERT INTO C) ADD ROW D) CREATE ROW 25 / 45 25) What is the purpose of the UNION operator in MySQL? A) Filters data B) Sorts results C) Joins tables D) Combines result sets 26 / 45 26) What does the TRUNCATE TABLE command do in MySQL? A) Resets table B) Removes all rows C) Deletes table D) Empties table 27 / 45 27) How do you perform a self join in MySQL? A) Joins unique rows B) Joins table with itself C) Joins using subquery D) Joins multiple tables 28 / 45 28) What does the SUBSTRING() function do in MySQL? A) Extracts part of string B) Filters values C) Joins strings D) Counts characters 29 / 45 29) What is the purpose of the LIMIT clause in MySQL? A) Controls result set size B) Joins multiple tables C) Deletes specific records D) Updates data 30 / 45 30) How do you perform an INNER JOIN in MySQL? A) Filters data B) Joins unmatched records C) Returns matched records D) Counts records 31 / 45 31) What does the FORMAT function do in MySQL? A) Formats numbers B) Averages numbers C) Counts values D) Rounds numbers 32 / 45 32) What does the REVOKE command do in MySQL? A) Revokes access B) Changes privileges C) Grants privileges D) Removes privileges 33 / 45 33) What is the purpose of the LAST_INSERT_ID() function in MySQL? A) Retrieves last inserted ID B) Filters records C) Retrieves first ID D) Joins tables 34 / 45 34) How do you create a view in MySQL? A) Updates a table B) Inserts new data C) Deletes a table D) Creates a virtual table 35 / 45 35) What does the YEAR() function do in MySQL? A) Extracts month B) Extracts year C) Filters data D) Joins tables 36 / 45 36) What is the purpose of the UNION operator in MySQL? A) Merges multiple result sets B) Deletes records C) Joins tables D) Alters data structure 37 / 45 37) How do you implement a trigger in MySQL? A) Executes on specific events B) Alters table structure C) Creates a backup D) Deletes data 38 / 45 38) Which SQL statement is used to create a table? A) MAKE TABLE B) BUILD TABLE C) NEW TABLE D) CREATE TABLE 39 / 45 39) What does the DATE_FORMAT() function do in MySQL? A) Extracts year B) Formats date C) Filters records D) Joins tables 40 / 45 40) How do you implement row-level security in MySQL? A) Controls data visibility B) Joins tables C) Alters data structure D) Deletes records 41 / 45 41) How do you use the INSERT IGNORE statement in MySQL? A) Filters data B) Deletes records C) Ignores duplicate entries D) Joins tables 42 / 45 42) How do you create a unique index in MySQL? A) MODIFY INDEX B) Creates unique index C) ADD INDEX D) REMOVE INDEX 43 / 45 43) How do you optimize a query using an index in MySQL? A) Improves query performance B) Removes duplicate rows C) Increases data redundancy D) Sorts data alphabetically 44 / 45 44) How do you use the BETWEEN operator in MySQL? A) Filters range B) Groups records C) Sorts results D) Joins tables 45 / 45 45) What is the purpose of the LIKE operator in MySQL? A) Group matching B) Fuzzy matching C) Pattern matching D) Exact matching Your score is LinkedIn Facebook Twitter VKontakte 0% ExamWEB DEVELOPMENT EXAM...Read MoreREACT JS PROGRAMMING EXAM...Read MorePYTHON FULL STACK...Read MorePYTHON EXAMS ...Read MoreMYSQL...Read MoreMACHINE LEARNING...Read MoreJAVASCRIPT PROGRAMMING EXAM...Read MoreJAVA SPRING BOOT...Read MoreJAVA PROGRAMMING EXAM...Read MoreJAVA FULL STACK...Read MoreHTML PROGRAMMING EXAM...Read MoreDEEP LEARNING...Read MoreDATA SCIENCE...Read MoreCSS PROGRAMMING EXAM...Read MoreANGULAR JS PROGRAMMING EXAM...Read More 16Share on WhatsApp10Share on LinkedIn5Share on YouTube9Share on Facebook Comments 0
