本文假设您了解关系数据库系统(RDBMS)的基本原理，并且用DB 2或其他RDBMS实现过应用程序。
This article assumes that you have a basic knowledge of relational database systems (RDBMS) and have previously implemented applications using either DB2 or another RDBMS.
您会发现，对话提供了一种方式，可以防止短期存储丢失，而短期存储丢失在Web应用程序中很常见，并且还是滥用数据库的根本原因。
As you'll see, conversations provide a means to prevent the short-term memory loss that is so common in Web applications and also a root cause of database abuse.
SQL Injection攻击的基本原理如下：您创建一个网页，允许用户向文本框中输入文本，用于对数据库执行查询。
The basic idea behind a SQL injection attack is this: you create a Web page that allows the user to enter text into a textbox that will be used to execute a query against a database.
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