sqli-libs第11题
    English Answer：
    1. What is SQL injection?
    SQL injection is a web security vulnerability that allows an attacker to execute arbitrary SQL statements on a database server. This can be done by passing malicious SQL code through a web application's input validation mechanisms.
    2. What are the different types of SQL injection attacks?
    There are two main types of SQL injection attacks:
union是什么类型    In-band SQL injection attacks are executed by passing malicious SQL code through the same channel that is used to transmit legitimate data to the database server. This is the most common type of SQL injection attack.
    Out-of-band SQL injection attacks are executed by passing malicious SQL code through a
different channel than the one that is used to transmit legitimate data to the database server. This type of attack is less common, but it can be more difficult to detect and prevent.
    3. What are the risks of SQL injection attacks?
    SQL injection attacks can have a number of serious consequences, including:
    Data theft.
    Data manipulation.
    Denial of service.
    System compromise.
    4. How can SQL injection attacks be prevented?
    SQL injection attacks can be prevented by using a number of different techniques, including:
    Input validation.
    Output encoding.
    Prepared statements.
    Stored procedures.
    Web application firewalls.
    5. What are some examples of SQL injection attacks?
    Here are a few examples of SQL injection attacks:
    Classic SQL injection attack: This is the most basic type of SQL injection attack. It involves passing malicious SQL code through a web application's input validation mechanisms. For example, an attacker could enter the following code into a search box:

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