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27 Questions

Views Newest Activity Votes

votes

answer

433

views

How to get cross apply to operate row by row on a view?

Jan 26 '19 at 10:12 ypercubeᵀᴹ 83.8k

votes

answers

192

views

What cases benefit from the Reduce, Replicate, and Redistribute join hints?

sql-server join hints azure-sql-data-warehouse sql-server-pdw

Jan 24 '19 at 20:59 Max Vernon 60.2k

vote

answers

119

views

Workaround to implement Minimum Degree of Parallelism

sql-server maxdop

Dec 11 '18 at 14:17 John aka hot2use 10.5k

votes

answers

views

Where is Newid(), Rand(), and Sysutcdatetime() new value per query vs. row behavior documented? [duplicate]

sql-server update insert

Aug 23 '18 at 11:27 ypercubeᵀᴹ 83.8k

votes

answer

views

Read system_health event_file instead of ring_buffer for deadlocks extended events

sql-server sql-server-2012 deadlock xml extended-events

Aug 18 '17 at 17:39 crokusek 1,743

vote

answers

views

Schema transfer of SP does not update information_schema.routines.routine_definition / object_definition?

information-schema

Nov 8 '16 at 23:21 crokusek 1,743

votes

answer

views

Querying True Physical Database File Sizes

sql-server database-size

Aug 14 at 13:22 Aaron Bertrand♦ 164k

votes

answers

338

views

How to improve estimate of 1 row in a View constrained by DateAdd() against an index

sql-server sql-server-2012 optimization view

May 18 '17 at 15:34 Paul White Reinstate Monica♦ 50.8k

votes

answer

315

views

Is it possible to get seek based parallel plan for distinct/group by?

sql-server index optimization group-by distinct

Sep 7 '15 at 12:45 Community♦ 1

vote

answers

652

views

What are recommended (working) permissions for a user to view all SQL Agent jobs

sql-server-2012 permissions sql-server-agent

Aug 23 '14 at 3:46 Community♦ 1

votes

answer

642

views

Why does Recursive CTE estimate just 1 row?

sql-server sql-server-2012 cte recursive cardinality-estimates

Sep 28 '15 at 12:01 Community♦ 1

votes

answers

views

Is support for Parallel Scalar UDF a reasonable feature request?

sql-server parallelism functions

Nov 24 at 15:07 Paul White Reinstate Monica♦ 50.8k

votes

answer

947

views

Is is possible to handle a UserAbort or ClientTimeOut within a Stored Procedure?

sql-server transaction timeout

Jul 23 '14 at 19:40 Community♦ 1

votes

answer

423

views

Why is an additional filtered statistic being ignored (EAV schema)?

sql-server statistics eav cardinality-estimates

Aug 19 '15 at 1:33 Paul White Reinstate Monica♦ 50.8k

votes

answers

views

How to improve row estimate of 1 row in join for newly inserted data

sql-server statistics optimization cardinality-estimates

May 7 '14 at 18:31 Community♦ 1

votes

answer

views

Is it possible to raiserror within a For Delete Trigger that rolls back the deletes

sql-server trigger delete exception raiserror

Jan 30 '14 at 21:52 Community♦ 1

votes

answer

views

Why does implicit conversion from sql_variant (basetype decimal) not work well with float

sql-server type-conversion cast sql-variant-property

Jan 14 '14 at 10:38 Martin Smith 71.8k

votes

answer

533

views

How to use proper hints for Upsert involving a top 1 subquery

sql-server locking deadlock upsert

Jan 10 '14 at 0:39 Community♦ 1

votes

answers

15k

views

How to clear an Error 15404 after a DB restart (besides rebooting)

sql-server sql-server-agent active-directory jobs

Nov 21 '17 at 14:11 Federico 1

vote

answer

719

views

How is parallelism threshold (seconds) used if query CPU cost is actually unitless

sql-server parallelism

Nov 20 '13 at 1:29 Community♦ 1

votes

answers

227

views

Why does removing a RID by creating a clustered index lose parallelism and slow down execution by 2X

sql-server performance clustered-index parallelism nonclustered-index

Oct 25 '13 at 19:25 crokusek 1,743

-4

votes

answers

views

How to improve TempDb on RAMDisk showing performance on par with physical hard drive [closed]

sql-server optimization tempdb

Aug 5 '13 at 5:08 crokusek 1,743

votes

answers

10k

views

How can row estimates be improved in order to reduce chances of spills to tempdb

sql-server optimization join

Nov 7 '13 at 17:59 crokusek 1,743

votes

answer

880

views

How to determine cause of runtime increase given two query plans with SpillToTempDb warning

sql-server execution-plan tempdb

Apr 27 '13 at 12:13 Paul White Reinstate Monica♦ 50.8k

votes

answer

views

Unable to run union in parallel on SQL Server

sql-server union

Mar 25 '13 at 4:48 Community♦ 1

votes

answers

19k

views

How to log error details when using using try/catch for dynamic SQL backup commands

sql-server backup error-handling

Feb 8 '17 at 19:01 Aaron Bertrand♦ 164k

votes

answers

902

views

How to use merge hints to isolate complex queries in SQL Server

sql-server optimization join hints merge

Feb 10 '13 at 19:12 Community♦ 1

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27 Questions

How to get cross apply to operate row by row on a view?

What cases benefit from the Reduce, Replicate, and Redistribute join hints?

Workaround to implement Minimum Degree of Parallelism

Where is Newid(), Rand(), and Sysutcdatetime() new value per query vs. row behavior documented? [duplicate]

Read system_health event_file instead of ring_buffer for deadlocks extended events

Schema transfer of SP does not update information_schema.routines.routine_definition / object_definition?

Querying True Physical Database File Sizes

How to improve estimate of 1 row in a View constrained by DateAdd() against an index

Is it possible to get seek based parallel plan for distinct/group by?

What are recommended (working) permissions for a user to view all SQL Agent jobs

Why does Recursive CTE estimate just 1 row?

Is support for Parallel Scalar UDF a reasonable feature request?

Is is possible to handle a UserAbort or ClientTimeOut within a Stored Procedure?

Why is an additional filtered statistic being ignored (EAV schema)?

How to improve row estimate of 1 row in join for newly inserted data

Is it possible to raiserror within a For Delete Trigger that rolls back the deletes

Why does implicit conversion from sql_variant (basetype decimal) not work well with float

How to use proper hints for Upsert involving a top 1 subquery

How to clear an Error 15404 after a DB restart (besides rebooting)

How is parallelism threshold (seconds) used if query CPU cost is actually unitless

Why does removing a RID by creating a clustered index lose parallelism and slow down execution by 2X

How to improve TempDb on RAMDisk showing performance on par with physical hard drive [closed]

How can row estimates be improved in order to reduce chances of spills to tempdb

How to determine cause of runtime increase given two query plans with SpillToTempDb warning

Unable to run union in parallel on SQL Server

How to log error details when using using try/catch for dynamic SQL backup commands

How to use merge hints to isolate complex queries in SQL Server