Which statement is used to update existing records in a database table using SQL?
A). INSERT
B). SELECT
C). UPDATE
D). MODIFY
What is the primary function of the mysqli_num_rows() function in PHP?
A). Fetching data from the database
B). Inserting records into the database
C). Updating records in the database
D). Getting the number of rows in a result set
What is the primary purpose of the mysqli_close() function in PHP?
A). Establishing a database connection
B). Inserting records into the database
C). Updating records in the database
D). Closing the database connection
Which operation is used to insert new records into a database table using SQL?
A). CREATE
B). INSERT
C). UPDATE
D). DELETE
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()
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 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 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
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 SQL operation is used to update the structure of an existing database table?
A). ALTER
B). UPDATE
C). MODIFY
D). CHANGE