Saya membuat sesi Acara yang diperluas di SQL Server 2008 R2. Sesi berjalan, dan mengumpulkan acara saat itu terjadi, persis seperti yang Anda harapkan.
Jika saya merobek xml ketika ada beberapa peristiwa yang relatif, kinerja dapat diterima. Ketika saya memiliki ribuan acara, perlu untuk menghancurkan xml.
Saya tahu saya melakukan sesuatu yang salah, saya hanya tidak memiliki pengetahuan yang cukup tentang internal mesin XML untuk memahami apa.
Ini adalah definisi dari sesi Peristiwa Saya:
IF EXISTS
(
SELECT 1
FROM sys.server_event_sessions dxs
WHERE dxs.name = 'queries'
)
BEGIN
IF EXISTS (
SELECT 1
FROM sys.dm_xe_sessions dxs
WHERE dxs.name = 'queries'
)
BEGIN
ALTER EVENT SESSION queries ON SERVER STATE = STOP;
END
DROP EVENT SESSION queries ON SERVER;
END
CREATE EVENT SESSION queries ON SERVER
ADD EVENT sqlserver.sql_statement_starting
(
ACTION
(
package0.collect_system_time
--, package0.event_sequence
, sqlserver.client_app_name
, sqlserver.client_hostname
--, sqlserver.database_name
, sqlserver.plan_handle
, sqlserver.sql_text
, sqlserver.username
)
WHERE sqlserver.username = N'<some username>'
AND sqlserver.database_id = 6 /* specific database */
AND sqlserver.client_hostname <> '<my machine>'
)
, ADD EVENT sqlserver.error_reported
(
ACTION
(
package0.collect_system_time
, sqlserver.client_app_name
, sqlserver.client_hostname
, sqlserver.plan_handle
, sqlserver.sql_text
, sqlserver.username
)
WHERE sqlserver.username <> N'<some username>'
/* fluff errors below */
AND error <> 5703 /* Changed language setting to %.*ls. */
AND error <> 5701 /* Changed database context to '%.*ls'. */
AND error <> 2528 /* DBCC execution completed. If DBCC printed error messages, contact your system administrator. */
AND error <> 7969 /* No active open transactions. */
--AND error <> 14205/* (unknown) */
AND error <> 4035 /* Processed %I64d pages for database '%ls', file '%ls' on file %d. */
AND error <> 18265/* Log was backed up. Database: %s, creation date(time): %s(%s), first LSN: %s, last LSN: %s, number of dump devices: %d, device information: (%s). This is an informational message only. No user action is required. */
AND error <> 3014 /* %hs successfully processed %I64d pages in %d.%03d seconds (%d.%03d MB/sec). */
AND error <> 14570/* (Job outcome) */
AND error <> 8153 /* Warning: Null value is eliminated by an aggregate or other SET operation. */
)
ADD TARGET package0.ring_buffer
(
SET max_memory = 102400
)
WITH
(
STARTUP_STATE=OFF
, TRACK_CAUSALITY = ON
);
GO
IF EXISTS
(
SELECT 1
FROM sys.server_event_sessions dxs
WHERE dxs.name = 'queries'
)
BEGIN
ALTER EVENT SESSION queries ON SERVER STATE = START;
END
Beginilah cara saya merobek-robek hasilnya:
/***************************
shred the Event Data into readable form
***************************/
DECLARE @xml XML;
SELECT TOP(1) @xml = CONVERT(xml, xet.target_data)
FROM sys.dm_xe_session_targets AS xet
INNER JOIN sys.dm_xe_sessions AS xe ON (xe.address = xet.event_session_address)
WHERE xe.name = 'queries';
SELECT t.EventName
, DateStamp = DATEADD(HOUR, -6, t.EventDateStamp)
, DatabaseName = d.name
, t.ErrorNumber
, t.ErrorSeverity
, t.ErrorState
, t.ErrorMessage
, t.CollectSystemTime
, t.ClientAppName
, t.ClientHostName
, t.PlanHandle
, t.SqlText
, t.UserName
FROM (
SELECT EventName = s.value('(@name)[1]','varchar(500)')
, EventDateStamp = s.value('(@timestamp)[1]','datetime')
, DatabaseID = s.value('(data[(@name)[1] eq "source_database_id"]/value/text())[1]','varchar(255)')
, ErrorNumber = s.value('(data[(@name)[1] eq "error"]/value/text())[1]','int')
, ErrorSeverity = s.value('(data[(@name)[1] eq "severity"]/value/text())[1]','int')
, ErrorState = s.value('(data[(@name)[1] eq "state"]/value/text())[1]','int')
, ErrorMessage = s.value('(data[(@name)[1] eq "message"]/value/text())[1]','varchar(255)')
, CollectSystemTime = s.value('(action[(@name)[1] eq "collect_system_time"]/text/text())[1]','varchar(255)')
, ClientAppName = s.value('(action[(@name)[1] eq "client_app_name"]/value/text())[1]','varchar(255)')
, ClientHostName = s.value('(action[(@name)[1] eq "client_hostname"]/value/text())[1]','varchar(255)')
, PlanHandle = CONVERT(xml, s.value('(action[(@name)[1] eq "plan_handle"]/value/text())[1]','varchar(255)')).value('(plan/@handle)[1]', 'varchar(255)')
, SqlText = s.value('(action[(@name)[1] eq "sql_text"]/value/text())[1]','nvarchar(max)')
, UserName = s.value('(action[(@name)[1] eq "username"]/value/text())[1]','varchar(128)')
FROM @xml.nodes('/RingBufferTarget/event') AS xm(s)
) t
LEFT JOIN sys.databases d ON t.DatabaseID = d.database_id
ORDER BY t.UserName
, t.EventDateStamp;
sql-server
sql-server-2008-r2
xml
extended-events
Max Vernon
sumber
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OPTION (Optimize FOR (@xml = Null))
Anda juga dapat menggunakanOPTION (QUERYTRACEON 4130
stackoverflow.com/a/3979266/73226Jawaban:
Terima kasih kepada @Tom V untuk mengidentifikasi posting blog ini yang mengidentifikasi perlunya tabel sementara.
Mengadaptasi gagasan dalam posting blog, ini sekarang bekerja sangat cepat:
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