SQL Profiler在未知的TextData上显示持续时间很长

Question

我一直在分析我的web应用程序在过去24小时内与sql server的连接。 在1.226.709批量生成中，我有36个，持续时间超过0.1秒。

在36我有4个未知的陈述。在这里，我希望你们中的一些人能帮我说出这些是什么以及他们来自哪里？ :)

第一个关注我有点，因为它有一个持续时间超过1秒。

（跟踪是在数据库中保存到一个表，这就是为什么所有的持续时间是微秒）

TextData:  SELECT 'Server[@Name=' + quotename(CAST(   serverproperty(N'Servername')   AS sysname),'''') + ']' + '/Collation[@Name=' + quotename(cl.name,'''') + ']' AS [Urn], cl.name AS [Name], CAST(COLLATIONPROPERTY(name, 'CodePage') AS int) AS [CodePage], CAST(COLLATIONPROPERTY(name, 'LCID') AS int) AS [LocaleID], CAST(COLLATIONPROPERTY(name, 'ComparisonStyle') AS int) AS [ComparisonStyle], cl.description AS [Description], CAST(COLLATIONPROPERTY(name, 'Version') AS int) AS [CollationVersion] FROM sys.fn_helpcollations() cl ORDER BY [Name] ASC 
CPU:   93 
Reads:   0 
Writes:   0 
Duration:  1013301 
ApplicationName Microsoft SQL Server Management Studio - Transact-SQL IntelliSense 

TextData:  select IndA.name, IndA.index_id, IndA.fill_factor, IndA.is_padded, IndA.is_disabled,IndA.is_hypothetical, IndA.allow_row_locks, IndA.allow_page_locks,IndA.spatial_index_type, IndB.bounding_box_xmin, IndB.bounding_box_ymin, IndB.bounding_box_xmax, IndB.bounding_box_ymax, IndB.level_1_grid, IndB.level_2_grid, IndB.level_3_grid, IndB.level_4_grid, IndB.cells_per_object, ind_col.index_column_id, col.name as column_nName, ind_col.key_ordinal, ind_col.is_descending_key, ind_col.column_id, st.no_recompute from (sys.spatial_indexes IndA left outer join sys.spatial_index_tessellations IndB on IndB.object_id = IndA.object_id and IndB.index_id = IndA.index_id) inner join(sys.internal_tables IntT inner join sys.stats st on st.object_id = IntT.object_id and st.stats_id = 1) on IntT.parent_id = IndA.object_id and IntT.parent_minor_id = IndA.index_id inner join sys.index_columns ind_col on ind_col.object_id = IndA.object_id and ind_col.index_id = IndA.index_id inner join sys.columns col on col.object_id = ind_col.object_id and col.column_id = ind_col.column_id where IndA.object_id = object_id(N'dbo.rapports') order by IndA.index_id, ind_col.key_ordinal 
CPU:   109 
Reads:   216 
Writes:   0 
Duration:  148322 
ApplicationName Microsoft SQL Server Management Studio 

TextData:  select col.name, col.column_id, st.name as DT_name, schema_name(st.schema_id) as DT_schema, col.max_length, col.precision, col.scale, bt.name as BT_name, col.collation_name, col.is_nullable, col.is_ansi_padded, col.is_rowguidcol, col.is_identity, case when(idc.column_id is null) then null else CONVERT(nvarchar(40), idc.seed_value) end, case when(idc.column_id is null) then null else CONVERT(nvarchar(40), idc.increment_value) end, CONVERT(bit, case when(cmc.column_id is null) then 0 else 1 end) as is_computed, convert(bit, ColumnProperty(col.object_id, col.name, N'IsIdNotForRepl')) as IsIdNotForRepl, col.is_replicated, col.is_non_sql_subscribed, col.is_merge_published, col.is_dts_replicated, col.rule_object_id, robj.name as Rul_name, schema_name(robj.schema_id) as Rul_schema, col.default_object_id, OBJECTPROPERTY(col.default_object_id, N'IsDefaultCnst') as is_defcnst, dobj.name as def_name, schema_name(dobj.schema_id) as def_schema, CONVERT(bit, case when (ftc.column_id is null) then 0 else 1 end) as is_FullTextCol, col_name(col.object_id, ftc.type_column_id) FT_type_column, ftc.language_id as FT_language_id, case when(cmc.column_id is null) then null else cmc.definition end as formular, case when(cmc.column_id is null) then null else cmc.is_persisted end as is_persisted, defCst.definition, COLUMNPROPERTY(col.object_id, col.name, 'IsDeterministic') as IsDeterministic, xmlcoll.name as xmlSchema_name, schema_name(xmlcoll.schema_id) as xmlSchema_schema, col.is_xml_document, col.is_sparse, col.is_column_set from sys.columns col left outer join sys.types st on st.user_type_id = col.user_type_id left outer join sys.types bt on bt.user_type_id = col.system_type_id left outer join sys.objects robj on robj.object_id = col.rule_object_id and robj.type = 'R' left outer join sys.objects dobj on dobj.object_id = col.default_object_id and dobj.type = 'D' left outer join sys.default_constraints defCst on defCst.parent_object_id = col.object_id and defCst.parent_column_id = col.column_id left outer join sys.identity_columns idc on idc.object_id = col.object_id and idc.column_id = col.column_id left outer join sys.computed_columns cmc on cmc.object_id = col.object_id and cmc.column_id = col.column_id left outer join sys.fulltext_index_columns ftc on ftc.object_id = col.object_id and ftc.column_id = col.column_id left outer join sys.xml_schema_collections xmlcoll on xmlcoll.xml_Collection_id = col.xml_Collection_id where col.object_id = object_id(N'dbo.rapports') order by col.column_id 
CPU:   215 
Reads:   6895 
Writes:   0 
Duration:  142054 
ApplicationName Microsoft SQL Server Management Studio 

TextData:  SELECT dtb.name AS [Name], dtb.database_id AS [ID], CAST(case when dtb.name in ('master','model','msdb','tempdb') then 1 else dtb.is_distributor end AS bit) AS [IsSystemObject], CAST(has_dbaccess(dtb.name) AS bit) AS [IsAccessible], dtb.collation_name AS [Collation], dtb.name AS [DatabaseName2] FROM master.sys.databases AS dtb ORDER BY [Name] ASC 
CPU:   15 
Reads:   324 
Writes:   0 
Duration:  111258 
ApplicationName Microsoft SQL Server Management Studio - Transact-SQL IntelliSense 

额外的信息！

我每晚都运行脚本来备份数据库。我不知道这4条陈述与此无关。备份声明如下：

TextData: declare @DBName varchar(200) declare @Filename varchar(1000) declare @Description varchar(1000) DECLARE AllDatabases CURSOR FOR SELECT name AS Name FROM MASTER.DBO.SYSDATABASES WHERE [NAME] NOT IN('MODEL', 'tempdb') OPEN AllDatabases FETCH NEXT FROM AllDatabases INTO @DBName WHILE @@FETCH_STATUS = 0 BEGIN print '' print '' print 'Backing up database ' + @DBName -- Backup the database set @Filename = 'D:\backup\' + convert(varchar, getDate(), 112) + ' - ' + @DBName + '.bak' set @Description = 'Full backup of database ' + @Filename BACKUP DATABASE @DBName TO DISK = @Filename WITH INIT , NOUNLOAD , NAME = @Description, NOSKIP , STATS = 10, NOFORMAT  FETCH NEXT FROM AllDatabases INTO @DBName END CLOSE AllDatabases DEALLOCATE AllDatabases 
CPU:  219 
Reads:  2569 
Writes:  83 
Duration: 4478260 

噢，是啊......我不习惯分析我的SQL Server。有没有什么建议可以提供？ :)我当然一直在使用Google的主题。

Answer 1

添加ApplicationName列后，您可以看到SSMS正在运行查询以收集有关数据库的元数据。 SSMS需要各种元数据来显示数据库，对象，登录等等（你也可以看到对Intellisense的引用），所以查看服务器是完全正常的。除非你有某种可以直接链接到SSMS的这些查询的性能问题，否则我会忘记它们。

Answer 2

在对象浏览器中从一台服务器到另一台服务器时，同样的查询也负责SMSS的挂起。只要杀死运行这个查询的进程就可以了。