Profiler TextData 输出为空

Question

我正在对数据库进行跟踪并将跟踪实时转储到表中。

我进行跟踪的原因是我想查看对数据库执行的所有查询。

+-----------+------------+----------+------------------------------+------------+-----------+-----+-------+--------+-----------+-----------------+------+-------------------------+-------------------------+------------+
| RowNumber | EventClass | TextData |       ApplicationName        | NTUserName | LoginName | CPU | Reads | Writes | Duration  | ClientProcessID | SPID |        StartTime        |         EndTime         | BinaryData |
+-----------+------------+----------+------------------------------+------------+-----------+-----+-------+--------+-----------+-----------------+------+-------------------------+-------------------------+------------+
|     13073 |         15 | NULL     | .Net SqlClient Data Provider | NULL       | reviewer  |   0 |  2172 |      0 | 439776000 |            5096 |  104 | 2012-12-14 12:54:22.893 | 2012-12-14 13:01:42.670 | NULL       |
|     13057 |         15 | NULL     | .Net SqlClient Data Provider | NULL       | reviewer  |   0 |  3198 |      4 | 436033000 |            4424 |  158 | 2012-12-14 12:52:50.457 | 2012-12-14 13:00:06.490 | NULL       |
|     10372 |         15 | NULL     | .Net SqlClient Data Provider | NULL       | reviewer  |   0 |  2124 |      0 | 400456000 |            2664 |  200 | 2012-12-14 12:48:12.347 | 2012-12-14 12:54:52.803 | NULL       |
|      4498 |         15 | NULL     | .Net SqlClient Data Provider | NULL       | reviewer  |   0 |  2099 |      0 | 399923000 |            3432 |  128 | 2012-12-14 12:06:10.140 | 2012-12-14 12:12:50.063 | NULL       |
|      8288 |         15 | NULL     | .Net SqlClient Data Provider | NULL       | reviewer  |   0 |  2525 |      2 | 399730000 |            2664 |  194 | 2012-12-14 12:38:46.863 | 2012-12-14 12:45:26.593 | NULL       |
+-----------+------------+----------+------------------------------+------------+-----------+-----+-------+--------+-----------+-----------------+------+-------------------------+-------------------------+------------+

我正在抓取duration最高的行：

/****** Script for SelectTopNRows command from SSMS  ******/
SELECT TOP 1000 [RowNumber]
      ,[EventClass]
      ,[TextData]
      ,[ApplicationName]
      ,[NTUserName]
      ,[LoginName]
      ,[CPU]
      ,[Reads]
      ,[Writes]
      ,[Duration]
      ,[ClientProcessID]
      ,[SPID]
      ,[StartTime]
      ,[EndTime]
      ,[BinaryData]
  FROM [salesdwh_testing].[dbo].[mytrace]
  order by duration desc

为什么 TextData 为空？

请注意，并非所有 TextData 都为空，但看起来前 1000 名都是空的！

Answer 1

EventClass 15 是“审核注销”，没有与之关联的 TextData。这只是连接关闭。TextData 只会与“SQL:StmtStarting”等事件相关联......

有关更多信息，请参见此处：http : //weblogs.sqlteam.com/mladenp/archive/2007/11/09/Map-SQL-Server-Profiler-EventClass-ID-to-its-name-in.aspx

来自评论：它在日志中显示的持续时间是总连接持续时间。