Q
What is the purpose of the PDO::beginTransaction() method in PDO extension?

Answer & Solution

Answer: Option A
Solution:
The PDO::beginTransaction() method in PDO extension is used to initiate a database transaction. Transactions help maintain data integrity by ensuring that a series of SQL statements are executed as a single unit, either all succeeding or all failing.
Related Questions on Average

Which of the following is NOT a step in connecting to a MySQL database using PDO extension?

A). Create a PDO object

B). Set database credentials

C). Execute an SQL query

D). Handle connection errors

What is the purpose of the PDO::lastInsertId() method in PDO extension?

A). Retrieving the ID generated by the last INSERT statement

B). Executing an SQL query

C). Fetching data from the database

D). Closing the database connection

Which PHP extension provides better support for transaction management and error handling: MySQLi or PDO?

A). MySQLi

B). PDO

C). Both provide similar support

D). Neither supports transaction management

What is the purpose of the PDO::query() method in PDO extension?

A). Establishing a connection to a database

B). Executing an SQL statement

C). Fetching data from the database

D). Closing the database connection

Which of the following methods is used to execute a prepared statement with parameters in MySQLi extension?

A). mysqli_prepare()

B). mysqli_query()

C). mysqli_bind_param()

D). mysqli_execute()

What does PDO stand for in the context of PHP database access?

A). PHP Database Objects

B). PHP Data Operations

C). PHP Data Objects

D). PHP Database Extensions

Which PHP extension provides an improved interface for interacting with MySQL databases?

A). MySQL

B). PDO

C). SQLI

D). MySQLi

Which PHP function is used to establish a connection to a MySQL database server using MySQLi extension?

A). mysqli_connect()

B). mysqli_query()

C). mysqli_fetch_assoc()

D). mysqli_close()

What is the purpose of the PDO::setAttribute() method in PDO extension?

A). Setting attributes for the PDO connection

B). Executing SQL queries

C). Fetching data from the database

D). Closing the database connection

Which PHP extension is specific to MySQL databases and offers both procedural and object-oriented approaches for database operations?

A). PDO

B). MySQL

C). SQLI

D). MySQLi