These archived logs can either sit in the path where the active logs are stored , or you can use a user exit to specify a directory or media where they will be stored 这些归档日志既可以位于存储活动日志的路径中，也可以使用用户出口程序来指定将保存它们的目录或媒介。
For example , let s say that the encryption decryption routine is coded as the user exit uec00 user exit names are always " u " followed by four hexadecimal digits 例如，假设加密/解密例程被编写成用户出口uec00 （用户出口的名称总是以" u "开头，后面跟上4位十六进制数字） 。
For simple applications not requiring role - based access control and implementing only a single encryption key , a single user exit could be used for all encryption and decryption functions 对于不需要基于角色的访问控制，并且只实现一个加密密钥的简单应用程序，那么可以将一个用户出口用于所有加密和解密函数。
One possible solution would be to employ a file trigger to encrypt data imposing encryption automatically , regardless of how the data were written to disk and using a user exit to decrypt data 一个可行的办法是使用一个文件触发器来加密数据（不管数据如何被写到磁盘，都自动施加加密） ，并使用一个用户出口来解密数据。
A particularly elegant means of doing this , suggested by joel yates of the ibm u2 technical support group , is to use a construct called a " user exit " to implement the encryption decryption routine Ibm u2技术支持小组的joel yates推荐了一种特别优雅的做法，那就是使用一个称作“用户出口（ user exit ） ”的结构来实现加密/解密例程。
Listing encrypted data as plaintext using uniquery , retrieve , or sql requires a dictionary record that calls the user exit as a conversion code assume ssn is field 5 in this example 为了使用uniquery 、 retrieve或sql将加密的数据显示为明文，需要一个字典记录，由字典记录将用户出口作为变换码来调用（在这个例子中，假设ssn是字段5 ） ：
