Which SQL operation is used to update the structure of an existing database table?
A). ALTER
B). UPDATE
C). MODIFY
D). CHANGE
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 remove all records from a database table?
A). TRUNCATE
B). CLEAR
C). DELETE
D). REMOVE
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
Which PHP function is used to execute an SQL query in MySQLi extension?
A). mysqli_execute()
B). mysqli_query()
C). mysqli_fetch()
D). mysqli_prepare()
What is the purpose of the PDO::exec() method in PHP PDO extension?
A). Executing SQL queries
B). Fetching data from the database
C). Inserting records into the database
D). Closing the database connection
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 PHP function is used to execute an SQL query in PDO extension?
A). pdo_query()
B). pdo_execute()
C). pdo_fetch()
D). pdo_insert()
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
Which statement is used to update existing records in a database table using SQL?
A). INSERT
B). SELECT
C). UPDATE
D). MODIFY