When the repository files are present , the package migration wizard can migrate dts packages that were saved to meta data services 如果存在存储库文件，则包迁移向导可以迁移被保存到meta data services的dts包。
For example , if the date is in the current month , the package performs one set of tasks ; if not , the package performs an alternative set of tasks 例如，如果日期在当月，则包执行某一组任务；如果不在，则包执行另一组任务。
If the password is not provided , the package opens without the sensitive data and the current user must provide new values for sensitive data 如果不提供该密码，则包虽然可以打开但其中不包含敏感数据，当前用户必须为敏感数据提供新值。
If the checkpoint file exists , the package restarts from the point of the previous execution failure ; otherwise , it runs from the start of the package workflow 如果检查点文件存在，则包从上一次执行失败的点重新启动；如果检查点文件不存在，则包从包工作流的起点开始运行。
For example , in a package that uses a protection level that encrypts sensitive information with a password , the values of all properties that have been identified as sensitive are encrypted 例如，如果包所使用的是利用密码加密敏感信息的保护级别，则包中标识为敏感的所有属性的值都是加密的。
System variable , which has the string data type and contains a string that represents the guid of the executing instance of a package , is used in a parameter binding with the guid data type , the guid of the package instance will be translated incorrectly 系统变量，而该变量具有字符串数据类型，并包含表示包的执行实例的guid的字符串，则包实例的guid将被错误转换。
When debugging a package that includes both breakpoints on package events that you set in ssis designer , and breakpoints on lines of script code in a script task that you set in vsa , the package can run to and from breakpoints in the package and the script 如果调试的包中同时含有两种断点，一种是在ssis设计器中设置的包事件上的断点，一种是在vsa中设置的脚本代码行上的断点，则包可以运行到包和脚本中的断点，也可以从这些断点运行。
