This aspect and its parent, tracing, contain all the tracing implementation logic, but no information about what should be traced.
这个方面以及它的根源，追踪，包含所有的追踪执行逻辑，但是却没有包含应该追踪什么的信息。
In previous articles, I have described how to find performance using the SQL PL Profiler and logic problems using SQL Procedure Tracing.
在前面的文章中，我曾描述了分别利用SQL PL Profiler和SQL过程跟踪来发现性能和逻辑问题。
Tracing the logic flow through the program, you see that the first time through the loop, the value of the variable I becomes 5.
通过跟踪程序的逻辑流可以看到，第一次通过循环后，变量i的值变为5。
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