Welcome to the SQL Queries,Constraints and Triggers MCQs Page
Dive deep into the fascinating world of SQL Queries,Constraints and Triggers with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of SQL Queries,Constraints and Triggers, a crucial aspect of DBMS. In this section, you will encounter a diverse range of MCQs that cover various aspects of SQL Queries,Constraints and Triggers, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within DBMS.
Check out the MCQs below to embark on an enriching journey through SQL Queries,Constraints and Triggers. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of DBMS.
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SQL Queries,Constraints and Triggers MCQs | Page 10 of 17
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TRANSACTION.....
Commit;
ROLLBACK;
What does Rollback do?
CREATE TABLE Employee(Emp_id NUMERIC NOT NULL, Name VARCHAR(20) , dept_name VARCHAR(20), Salary NUMERIC UNIQUE(Emp_id,Name));
INSERT INTO Employee VALUES(1002, Ross, CSE, 10000)
INSERT INTO Employee VALUES(1006,Ted,Finance, );
INSERT INTO Employee VALUES(1002,Rita,Sales,20000);CREATE TABLE Manager(ID NUMERIC,Name VARCHAR(20),budget NUMERIC,Details VARCHAR(30));Which of the following is used to delete the entries in the referenced table when the tuple is deleted in course table?
CREATE TABLE course
( . . .
FOREIGN KEY (dept name) REFERENCES department
. . . );Suggested Topics
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