Jeff Moden

Forum Replies Created

Viewing 15 posts - 20,206 through 20,220 (of 59,072 total)

RE: Using a Recursive CTE to Generate a List

Ok... Chris' code on the subject of logical reads gave me an idea for different code to prove it to myself (which is no easy task). Early findings support...
--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)

June 27, 2015 at 9:09 am

#1808605
RE: Using a Recursive CTE to Generate a List

ChrisM@Work (6/26/2015)
Jeff Moden (6/26/2015)
Ed Pollack (6/26/2015)
MSDB has pretty straightforward definitions for the data in question:
https://msdn.microsoft.com/en-us/library/ms184361.aspx
If their documentation is wrong, then I'd definitely like to see some sort of proof of...
--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)

June 27, 2015 at 7:57 am

#1808600
RE: Exit Lines

GilaMonster (6/26/2015)
This industry is way too small and way too polarised to intentionally make more enemies.
Best comment on this whole thread!
--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)

June 26, 2015 at 5:48 pm

#1808578
RE: Exit Lines

Steve Smith-307669 (6/26/2015)
"Have a nice life!"
For some reason, to me, that's dripping with sarcasm. I'd never say such a thing on an exit.
--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)

June 26, 2015 at 5:47 pm

#1808577
RE: Exit Lines

David.Poole (6/26/2015)
I know someone who was disappointed to get a Survey Monkey exit interview. The gist of the survey was as to whether the company was good, outstanding or...
--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)

June 26, 2015 at 5:46 pm

#1808576
RE: need help on Scalar value Function

ScottPletcher (6/26/2015)
Sean Lange (6/26/2015)
ScottPletcher (6/25/2015)
GilaMonster (6/25/2015)
Nolock hints, do you know what they do? (hint, they don't make queries faster)
Why does everyone keep repeating that?
Scott you have been around sql...
--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)

June 26, 2015 at 5:34 pm

#1808575
RE: need help on Scalar value Function

ScottPletcher (6/26/2015)
Jeff Moden (6/25/2015)
ScottPletcher (6/25/2015)
sgmunson (6/25/2015)
ScottPletcher (6/25/2015)
GilaMonster (6/25/2015)
Nolock hints, do you know what they do? (hint, they don't make queries faster)
Why does everyone keep repeating that? Of course NOLOCK...
--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)

June 26, 2015 at 5:30 pm

#1808570
RE: Using a Recursive CTE to Generate a List

Ed Pollack (6/26/2015)
MSDB has pretty straightforward definitions for the data in question:
https://msdn.microsoft.com/en-us/library/ms184361.aspx
If their documentation is wrong, then I'd definitely like to see some sort of proof of that (query/IO measurements,...
--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)

June 26, 2015 at 8:53 am

#1808430
RE: Exit Lines

Why do people insist on making any kind of an exit statement? If management is actually concerned, they'll let you know and ask to have a talk with you....
--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)

June 26, 2015 at 8:39 am

#1808421
RE: Using a Recursive CTE to Generate a List

ChrisM@Work (6/26/2015)
Ed Pollack (6/26/2015)
This is an innovative way to generate a comma-delimited list, but performance is my main concern here. If you SET STATISTICS IO ON and turn on...
--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)

June 26, 2015 at 8:11 am

#1808411
RE: need help on Scalar value Function

ScottPletcher (6/25/2015)
sgmunson (6/25/2015)
ScottPletcher (6/25/2015)
GilaMonster (6/25/2015)
Nolock hints, do you know what they do? (hint, they don't make queries faster)
Why does everyone keep repeating that? Of course NOLOCK hints make queries...
--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)

June 25, 2015 at 8:06 pm

#1808300
RE: Table with 789.6 million records taking 5 mins to execute the select stmt

And, like I said [font="Arial Black"]here[/font], it would seem that you need to do a little "Divide'n'Conquer" and well as a bit of preaggregation although the final insert is 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)

June 25, 2015 at 7:31 pm

#1808296
RE: Table with 789.6 million records taking 5 mins to execute the select stmt

How many indexes do you have on the HEAP that you're inserting 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)

June 25, 2015 at 7:28 pm

#1808295
RE: Building a Tree Structure in an efficient and faster way.

a4apple (6/25/2015)
It sounds like this structure is for a company that uses network marketing for its sales force. The problem here is that I'm not sure quite what...
--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)

June 25, 2015 at 5:26 pm

#1808286
RE: Skill Supply and Demand

As a bit of a sidebar, this is why I'm sometimes considered to be a bit of a Luddite. Everyone, especially new front-end developers but not limited to just...
--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)

June 25, 2015 at 8:15 am

#1808081

Viewing 15 posts - 20,206 through 20,220 (of 59,072 total)