Jeff Moden

Forum Replies Created

Viewing 15 posts - 43,936 through 43,950 (of 59,097 total)

RE: The Next Frontier of Performance Troubleshooting

I think it very ironic that people continue to find better ways to find performance problems caused by poorly written code that should never have made it to the database...
--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)

May 3, 2009 at 9:24 am

#987827
RE: Solving the "Running Total" & "Ordinal Rank" Problems in SS 2k/2k5

Thanks for the offers of help guys. I love this team.
I've got 2k Dev, 2k5 Dev, and I'll soon have 2k8 Dev. I may also be shifting primary...
--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)

May 3, 2009 at 9:09 am

#987825
RE: SQL Server SQL Is ANSII Standard or ASCII?

http://www.google.com/search?hl=en&q=ansi+92
http://www.google.com/search?hl=en&q=ascii&aq=f&oq=
😉
--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)

May 2, 2009 at 8:55 pm

#987786
RE: Matrix multiplication without cursors?

If there's another thread with more detailed information, why the hell are we trying to answer anything on this thread? We're just spitting resources here.;-)
--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)

May 2, 2009 at 8:47 pm

#987785
RE: Constraints

Florian Reischl (5/2/2009)
You can create a scalar UDF which gets the ProductId, DateFiel1 and DateField2 and checks if another Product already exists. Then you can use the UDF in your...
--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)

May 2, 2009 at 8:39 pm

#987784
RE: Filtered index with IS NULL predicate

Heh... I'd recommend that you may need to actually put some data in the table before you even think of trying to optimize a query.
--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)

May 2, 2009 at 8:37 pm

#987783
RE: Calculating monthly billing total

dave b (5/2/2009)
Jeff...Thank you so much! This works great.
BTW...I just started reading your post about the "Tally" table.
I am now officially on a quest to eliminate my cursors and...
--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)

May 2, 2009 at 8:27 pm

#987782
RE: Join problem when convert joins with non ansi to ANSI format

Heh... it could simply be that the non-Ansi join was returning the incorrect row count to begin with. From BOL...
In earlier versions of Microsoft® SQL Server™ 2000, left and...
--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)

May 2, 2009 at 8:22 pm

#987781
RE: Unsubscribe from Topic

I agree. It would be real handy to click on Topic Options and be able to select "Unsubscribe from this topic only".
Of course, it would also be nice if...
--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)

May 2, 2009 at 8:07 pm

#987779
RE: Calculating monthly billing total

Your criteria is wrong. You shouldn't add minimum to the total and the price because in cases there there is anything >0, it will always exceed the minimum which...
--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)

May 2, 2009 at 7:48 pm

#987776
RE: Performance issue with tally solution

Paul White (5/2/2009)
...as I say, it's a shame about the compilation time.
Heh... yeah, I agree... for a million rows, it's a shame. For more common numbers like 8000, all...
--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)

May 2, 2009 at 7:01 pm

#987774
RE: Performance issue with tally solution

Paul White (5/2/2009)
Jeff Moden (5/2/2009)
Yes... but then you must also account for the run being against an NVARCHAR and divide by 4 instead of just 2 in Phil's example... as...
--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)

May 2, 2009 at 5:56 pm

#987772
RE: Performance issue with tally solution

Paul White (5/2/2009)
Well spotted! I must admit I looked at it and gave up after a few minutes...
I guess replacing LEN with DATALENGTH might fix it up too?
Paul
Yes... but...
--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)

May 2, 2009 at 5:36 pm

#987769
RE: BCP command using TSQL without xp_cmdshell

george sibbald (5/2/2009)
that would upset the heck out of most auditors unfortunately.
Why? I would think that the lack of security setup by the DBA that allowed it's misuse would...
--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)

May 2, 2009 at 5:11 pm

#987765
RE: Performance issue with tally solution

Phil Factor (5/2/2009)
They were rather interesting. I was when doing a 'quirky update' from a join with a temporary table and a table variable. It worked fine on the simple...
--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)

May 2, 2009 at 5:00 pm

#987764

Viewing 15 posts - 43,936 through 43,950 (of 59,097 total)