statements (e.g. IF) in SQL are used to perform different actions based on different conditions.

Preventing SQL injection attacks requires a combination of secure coding practices, such as input and validation, and using parameterized queries or prepared statements.

When constructing SQL queries dynamically, it's important to always sanitize and validate to prevent SQL injection attacks. Use parameterized queries or prepared statements to bind the user input to the query.

The UPDATE statement is used to existing records in a database table.

In SQL, an function (e.g. AVG,SUM) is used to perform calculations on a set of values and return a single value.

The function is used to calculate the total number of unique values in a column.

1. In SQL, a SELECT statement is used to retrieve from a database.

7. The SQL keyword used to filter rows based on a specific condition is .