- A 80
- B 443
- C 3306
- D 8080
Database Management System - Quiz
- A To enforce data integrity rules
- B To define the primary key of a table
- C To create an index for faster data retrieval
- D To specify default values for columns
- A MySQL uses a single storage engine, while SQL supports multiple storage engines.
- B SQL uses a single storage engine, while MySQL supports multiple storage engines.
- C MySQL and SQL use the same default storage engine.
- D Both MySQL and SQL support multiple storage engines.
- A ALTER INDEX
- B ALTER VIEW
- C ALTER SELECT
- D ALTER DELETE
- A ALTER TYPE
- B MODIFY COLUMN
- C UPDATE TYPE
- D CHANGE COLUMN
- A LIKE
- B MATCH
- C COMPARE
- D CASE
- A UPDATE CONDITIONAL
- B ALTER UPDATE
- C MODIFY UPDATE
- D UPDATE WHERE
- A UPDATE INCREMENT
- B INCREMENT COLUMN
- C ALTER INCREMENT
- D UPDATE SET
- A Atomicity, Consistency, Isolation, Durability
- B Accessibility, Completeness, Isolation, Durability
- C Atomicity, Completeness, Integrity, Durability
- D Accessibility, Consistency, Isolation, Durability
- A Atomicity
- B Consistency
- C Isolation
- D Durability
Results:
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🟢 Correct Answers: 🔴 Wrong Answers:
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Quiz Information
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Quiz Analytics
Database Management System - Quiz
Guest User
Time Taken: Questions: Answered: Not Answered:
Correct Answer:
Wrong Answer:
Percentage: %
- A. 80
- B. 443
- C. 3306
- D. 8080
Remarks:
Explanation:
The default port number for MySQL is 3306. It is the port where the MySQL server listens for incoming connections from clients.
- A. To enforce data integrity rules
- B. To define the primary key of a table
- C. To create an index for faster data retrieval
- D. To specify default values for columns
Remarks:
Explanation:
The FOREIGN KEY constraint in MySQL is used to establish a relationship between two tables based on a column or a combination of columns. It ensures that the values in the foreign key column(s) match the values in the referenced table's primary key column(s).
- A. MySQL uses a single storage engine, while SQL supports multiple storage engines.
- B. SQL uses a single storage engine, while MySQL supports multiple storage engines.
- C. MySQL and SQL use the same default storage engine.
- D. Both MySQL and SQL support multiple storage engines.
Remarks:
Explanation:
SQL, as a language, does not dictate the specific storage engine to be used. MySQL, on the other hand, is a DBMS that supports multiple storage engines, such as InnoDB, MyISAM, and more. Each storage engine has its own strengths and features.
- A. ALTER INDEX
- B. ALTER VIEW
- C. ALTER SELECT
- D. ALTER DELETE
Remarks:
Explanation:
The ALTER VIEW statement in MySQL is used to modify the definition of a view, such as changing the columns displayed or the underlying SELECT statement.
- A. ALTER TYPE
- B. MODIFY COLUMN
- C. UPDATE TYPE
- D. CHANGE COLUMN
Remarks:
Explanation:
The MODIFY COLUMN statement in MySQL is used to modify the data type of an existing column in a table. It allows you to change the data type while preserving the column's name and other attributes.
- A. LIKE
- B. MATCH
- C. COMPARE
- D. CASE
Remarks:
Explanation:
The LIKE statement in MySQL is used to perform case-sensitive pattern matching. It allows you to search for patterns within strings with optional wildcard characters.
- A. UPDATE CONDITIONAL
- B. ALTER UPDATE
- C. MODIFY UPDATE
- D. UPDATE WHERE
Remarks:
Explanation:
The UPDATE WHERE statement in MySQL is used to perform conditional updates. It allows you to update specific columns in a table based on specified conditions.
- A. UPDATE INCREMENT
- B. INCREMENT COLUMN
- C. ALTER INCREMENT
- D. UPDATE SET
Remarks:
Explanation:
The UPDATE SET statement in MySQL is used to update a column by incrementing its value. It allows you to specify the column to be updated and the new value using mathematical expressions.
- A. Atomicity, Consistency, Isolation, Durability
- B. Accessibility, Completeness, Isolation, Durability
- C. Atomicity, Completeness, Integrity, Durability
- D. Accessibility, Consistency, Isolation, Durability
Remarks:
Explanation:
ACID stands for Atomicity, Consistency, Isolation, and Durability. These are the four properties that ensure the reliability and integrity of database transactions.
- A. Atomicity
- B. Consistency
- C. Isolation
- D. Durability
Remarks:
Explanation:
Consistency is the ACID property that ensures that a transaction's execution does not violate the defined rules and constraints of the database. It guarantees that the database remains in a valid and consistent state before and after the transaction.