他打开一个命令行窗口，连接到SAMPLE数据库，并尝试更新employee表中的雇员工资(当然这样的尝试会遭到失败)。

He opens a command line window, connects to the SAMPLE database and unsuccessfully tries to update the employee salaries in the employee table. He issues the following SQL statements.

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如要看对实体e JB Category Be an下的数据库表进行更新的效果，请登录到数据库的命令行界面，并输入以下sql语句。

To see the effect of updating the database table underlying the CategoryBean entity EJB, sign on to the database's command-line interface and enter the following SQL statement.

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