Forum Replies Created
Viewing 15 posts - 58,591 through 58,605 (of 59,067 total)
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RE: Making an Update Query more efficient
One more thing! Don't even think of using the SELECT/INTO/RENAME method if others are updating the table at the same time or inserting new rows.... YOU WILL LOSE...
--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: Making an Update Query more efficient
Almost forgot... does the table being updated have any triggers? That really make things slow for this big an update especially if those triggers are writing to audit tables 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) -
RE: Making an Update Query more efficient
Yup, I'd lose the OUTER JOIN if an INNER JOIN will do. Also, like someone else asked, "What is slow"? I normally shoot for about 500,000 rows per minute (sometimes...
--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: Is there a way to convert hex to decimal?
Very, very cool... ol' Itzik did a neat job on this one.
Ken, do you know of a fn_DecToBase function in a similar vein by anyone?
--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: Using FROM @variable in SELECT statement...
Get the list of database names from Master.dbo.SysDataBases... build your own loop or (yeeach!) cursor to step the the DB names or ID's as the outer nest for sp_MSForEachTable.
--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: incrementing alpha string using SQL
Brilliant use of recursion guys! Absolutely awesome.
--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: Newbie
Take a look at the SQL portion of w3schools.com. It won't teach you all of the nuances of MS-SQL Server but it will give you a nice comfortable start 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) -
RE: Using FROM @variable in SELECT statement...
The original requester pointed out the he wanted to do it without a cursor. As David pointed out, the underlying code for sp_MSForEachTable and other similar routines are riddled with...
--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: Eliminate My cursor, Please.
The "INTO" clause of SELECT/INTO creates the temp table on the fly.
You are correct about COALESCE... It does the work... you could replace it with ISNULL and the effect...
--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: database column value check
As Kenneth suggested, ISNUMERIC may not cut it. It allows for seemingly non-numeric characters such as "d", "e", and "." so that it will support scientific and exponential notation. Continuing Sushila'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 do I create a custom identity?
Roger that... I'll put mine in a UDF
Thanks for the tip on the deterministic thing.--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: A join query
________________________________________________________________________________________________________________________
Does NOT require TimeIn/TimeOut be on same day... only requires that for every TimeIn, there is a TimeOut and that there are no "straggler" TimeOut's from the previous...
--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: Eliminate My cursor, Please.
--===== Create a function to concatenate orders by customer
CREATE FUNCTION dbo.ConcatOrderNum (@pCustomerID AS INT)
RETURNS VARCHAR(8000)
AS
BEGIN
DECLARE @oResult VARCHAR(8000)
SELECT @oResult= COALESCE(@oResult+',','')+OrderNumber
FROM Customer_Orders WITH (NOLOCK)
WHERE CustomerID...
--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 do I create a custom identity?
Serqiy,
This too, is deterministic and a bit easier on the eyes...
RIGHT('000'+CAST(XID%1000 AS VARCHAR),3)
--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 do I create a custom identity?
Just curious, Serqiy... why do you prefer the following...
+convert(char(3), replicate('0', 3-len(convert(varchar(3), XID%1000))) + convert(varchar(3), XID%1000)), --The 3 digit numeric part
... over ...
+REPLACE(STR(XID%1000,3),' ','0'), --The 3 digit numeric part
--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 - 58,591 through 58,605 (of 59,067 total)