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
What is the primary purpose of the mysqli_affected_rows() function in PHP?
A). Getting the number of rows affected by an SQL query
B). Fetching data from the database
C). Closing the database connection
D). Establishing a database connection
Which operation is used to delete specific records from a database table using SQL?
A). DELETE
B). REMOVE
C). ERASE
D). CLEAR
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 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 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 operation is used to insert new records into a database table using SQL?
A). CREATE
B). INSERT
C). UPDATE
D). DELETE
Which SQL operation is used to remove all records from a database table?
A). TRUNCATE
B). CLEAR
C). DELETE
D). REMOVE
Which SQL operation is used to update the structure of an existing database table?
A). ALTER
B). UPDATE
C). MODIFY
D). CHANGE