What is the primary purpose of the PDO::beginTransaction() method in PHP PDO extension?
A). Fetching data from the database
B). Inserting records into the database
C). Initiating a transaction
D). Closing the database connection
What is the purpose of the PDO::commit() method in PHP PDO extension?
A). Fetching data from the database
B). Inserting records into the database
C). Closing the database connection
D). Committing a transaction
What is the primary advantage of using prepared statements in PHP for database operations?
A). Better performance
B). Improved security against SQL injection
C). Easier syntax
D). Compatibility with older PHP versions
Which PHP function is used to execute an SQL query in MySQLi extension?
A). mysqli_query()
B). mysqli_fetch()
C). mysqli_insert()
D). mysqli_update()
Which statement is used to update existing records in a database table using SQL?
A). INSERT
B). SELECT
C). UPDATE
D). MODIFY
Which SQL operation is used to add new records to a database table?
A). CREATE
B). INSERT
C). ADD
D). APPEND
Which SQL operation is used to update the structure of an existing database table?
A). ALTER
B). UPDATE
C). MODIFY
D). CHANGE
Which PHP function is used to execute an SQL query in PDO extension?
A). pdo_query()
B). pdo_execute()
C). pdo_fetch()
D). pdo_insert()
Which SQL operation is used to remove all records from a database table?
A). TRUNCATE
B). CLEAR
C). DELETE
D). REMOVE
What is the purpose of the PDO::lastInsertId() method in PHP PDO extension?
A). Closing the database connection
B). Fetching data from the database
C). Inserting records into the database
D). Retrieving the ID generated by the last INSERT statement