Forum Replies Created
Viewing 15 posts - 421 through 435 (of 59,063 total)
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Reply To: How to calculate potential IO benefits of changes
frederico_fonseca wrote:I know you are after how to estimate X - that is not really a good way to go as there are way to many unknowns, and without looking...
--Jeff Moden
RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.Change is inevitable... Change for the better is not.
Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally) -
Reply To: SQL Server 2022 Memory Consumption
I have nothing good to say about SQL Server 2022. Any benefits have been outweighed by things like you describe and some seriously slow running code. MS broke things starting...
--Jeff Moden
RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.Change is inevitable... Change for the better is not.
Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally) -
Reply To: How to calculate potential IO benefits of changes
Jez-448386 wrote:This is the query with the plan (names have been changed):
DECLARE @DateColumn DATE = '2024-07-01';
DELETE s
FROM [Schema].TableName s
INNER JOIN #WorkingTable q
ON q.Column1 =...--Jeff Moden
RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.Change is inevitable... Change for the better is not.
Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally) -
Reply To: Index Update Reports - Scans/Seeks
This won't tell you if a table is "empty" or not but it will tell you if it has been used by users since the last restart or not. I...
--Jeff Moden
RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.Change is inevitable... Change for the better is not.
Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally) -
Reply To: How to calculate potential IO benefits of changes
Please post the Actual Execution plan for the DELETE of just ONE row. Attach the ACTUAL execution plan so we can take a look at it. A graphic of the...
--Jeff Moden
RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.Change is inevitable... Change for the better is not.
Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally) -
Reply To: 64KB and 32KB cluster size for log drives and tempdb
Before you mess with those things...
... try setting the following...
- Make sure Compressed backups are enabled (UNLESS your database is encrypted https://learn.microsoft.com/en-us/sql/relational-databases/backup-restore/backup-compression-sql-server ).
- Set the "buffercount" to 17 as a...
--Jeff Moden
RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.Change is inevitable... Change for the better is not.
Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally) -
Reply To: Why am I getting a "Incorrect syntax near '@tblName' error message?
Also, put the variable name in a QUOTENAME() function... just to be safe two ways.
--Jeff Moden
RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.Change is inevitable... Change for the better is not.
Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally) -
Reply To: How to improve index rebuild for very large table.
Lordy. My apologies. I just noticed that the table you posted has no Clustered Index.
I have to assume that you're not rebuilding the HEAP with Ola's Code, correct?
Also, you said...
--Jeff Moden
RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.Change is inevitable... Change for the better is not.
Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally) -
Reply To: Query timeout question
Older but definitive article...
https://www.sommarskog.se/query-plan-mysteries.html
--Jeff Moden
RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.Change is inevitable... Change for the better is not.
Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally) -
Reply To: Windows 11 & sudden SSMS sorting nuisance
TBH, I'd call MS Support on this one.
--Jeff Moden
RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.Change is inevitable... Change for the better is not.
Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally) -
Reply To: CrossTabs & Pre-Aggregations: Reporting on Steroids - Friday, 09 Aug 2024
SwePeso wrote:Preaggregation sounds familiar 🙂
Heh... it sure does. Here's page 44 from that presentation.
Every time I use the term, I try to...
--Jeff Moden
RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.Change is inevitable... Change for the better is not.
Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally) -
Reply To: CrossTabs & Pre-Aggregations: Reporting on Steroids - Friday, 09 Aug 2024
SoCal_DBD wrote:Awww man!! Keep coming west Jeff! Would love to see you make it to Orange County, CA one of these days.
Thank you kindly for the encouraging words but the...
--Jeff Moden
RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.Change is inevitable... Change for the better is not.
Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally) -
Reply To: what have people done for ssrs params needing very precise start and end times
stan wrote:Hi we run 2019 standard. one of our mfg locations requires somewhat precise start and end param times along with the start and end dates controlling how an ssrs...
--Jeff Moden
RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.Change is inevitable... Change for the better is not.
Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally) -
Reply To: Returning the Top X row for each group
Steve Collins wrote:Jeff Moden wrote:I did? I don't remember... I've gotten old enough where I think my harddrive is full and, every time I learn something new, either something else in...
--Jeff Moden
RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.Change is inevitable... Change for the better is not.
Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally) -
Reply To: Relationally Divided over EAV
webrunner wrote:I'm a little late to the party due to the repost. But I look forward to reading more on this topic. We had a really terrible EAV implementation, so...
--Jeff Moden
RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.Change is inevitable... Change for the better is not.
Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally)
Viewing 15 posts - 421 through 435 (of 59,063 total)