Forum Replies Created
Viewing 15 posts - 57,031 through 57,045 (of 59,067 total)
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RE: Creating fixed-length tables
In the presence of an appropriate index, DClark's method and the following method both work at about the same speed and both do the same thing functionally...
DELETE FROM...
--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) -
RE: how to remove ''''bad'''' characters from field?
Don't need it... N is the clustered Primary Key. Yeah, I know what you're going to say...
Anyway, the length in the substrings is hardcoded... surely you're not suggesting that 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) -
RE: how to remove ''''bad'''' characters from field?
If you have a Tally table, here's a possible solution, as well...
CREATE FUNCTION dbo.StripNonDigit(@Input VARCHAR(8000))
RETURNS VARCHAR(8000)
AS
BEGIN
DECLARE @Result VARCHAR(8000)
SELECT @Result = ISNULL(@Result,'')
...
--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) -
RE: how to remove ''''bad'''' characters from field?
Yep... I agree with Serquiy... if it's for an automatic dialer (or ever could be) or for humans to actually know whether it might be an international call just by...
--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) -
RE: Stored Procedure + Parameter list
True enough
, Serqiy, but if you want to name variables for flexibility, it is an error to name them after the actual...--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) -
RE: Select top groups
I'm with PW... I normally use "Derived Tables", as well. And, I normally don't like correlated subqueries because they can be difficult to troubleshoot. But their use seems appropriate 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) -
RE: Creating fixed-length tables
Got a code example for this particular "keep last 50" problem so we can see what you're talking about? I think you're talking about pre-assigning constants as variables which also...
--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) -
RE: Stored Procedure + Parameter list
Nicely done... although I do hope no one actually tries to pass a billion characters worth of parameters
By the way... you hardcoded the 2's...
--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) -
RE: how to remove ''''bad'''' characters from field?
Some of the solutions on the link seem, well... a bit bulky... I don't remember where I got it from but this works and it's nasty fast...
USE NorthWind
GO
CREATE...
--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) -
RE: Creating fixed-length tables
No "error"... Think of it as an "interation step" "that I hope will never be changed in my lifetime"...
...unless you'd rather see...
WHERE RowNum <=...
--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) -
RE: Minimum of top two values
This is SO much easier if you have a RowNum column....
SET NOCOUNT ON
DECLARE @MyTable TABLE
(
RowNum INT IDENTITY(1,1) PRIMARY KEY,
ItemName VARCHAR(6),
ItemNo INT,
ItemValue NUMERIC(20, 2)
)
--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)
RE: Logic to determine Gender based on FirstName
Shoot.... in this day an age of supposed equal opportunity, why would you need to know? Might even be against the law if it's for college admissions, for example...
--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)
RE: Insert #Temp Exec Server.Master.dbo.xp_fixeddrives
The column names in the #Drives table must be the same as those returned by the xp. You have FreeMB as one of the column names... you need to either...
--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)
RE: Creating fixed-length tables
You might be able to do the count thing with a RowNum IDENTITY column... have the trigger delete...
WHERE RowNum < IDENT_CURRENT('table_name')-49
--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)
RE: Parse delimited column into multiple records
Stef,
These types of problems are incredibly simple if you have the right kind of tools. Fortunately, there is one tool that has tremendous utility as just such a tool. It...
--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 - 57,031 through 57,045 (of 59,067 total)