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Examples of these are:. All of the data generated by an event is displayed in the trace in a single row. This row is intersected by data columns that describe the event in detail. An event class is a type of event that can be traced. The event class contains all of the data that can be reported by an event. The following are examples of event classes:. For example, all lock events classes are grouped within the Locks event category.
This term doesn't reflect the way Engine events are grouped. A data column is an attribute of an event class captured in the trace. Because the event class determines the type of data that can be collected, not all data columns are applicable to all event classes.
For example, in a trace that captures the Lock: Acquired event class, the BinaryData data column contains the value of the locked page ID or row, but the Integer Data data column doesn't contain any value because it isn't applicable to the event class being captured.
A template defines the default configuration for a trace. For example, you can create a template that specifies the events, data columns, and filters to use. A template isn't executed, but rather is saved as a file with a. Once saved, the template controls the trace data that is captured when a trace based on the template is launched. Thanks in advance. He holds a Masters of Science degree and numerous database certifications.
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Once you learn my business secrets, you will fix the majority of problems in the future. Reason 1: Profiler adds too much overhead to production server. Reason 2: Profiler accumulates plethora of data making it extremely intricate to analyze them afterwards. Profiler Terminology It is important to understand profiler terminology before digging into its details and finding how it works.
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