ChrisM@Work

Forum Replies Created

Viewing 15 posts - 5,251 through 5,265 (of 10,143 total)

RE: Catch Data between symbols in SQL

vinu512 (2/7/2013)
I worked it out. This is the query that would get you the results you want:
--Creating Table
Create Table Ex1
(
Id Int Identity(1,1),
AllLevels Varchar(MAX)
)
--Inserting Sample...
^{“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw}
For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden

February 7, 2013 at 6:25 am

#1585399
RE: Only NUMBERS

carlosaamaral (2/7/2013)
Good Morning,
to 200,000 lines is very, very slow ..... :crying:
to 1 line, it's good ...
I will continue using the...
^{“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw}
For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden

February 7, 2013 at 3:51 am

#1585307
RE: How to update on condition based?

demonfox (2/7/2013)
ChrisM@Work (2/7/2013)
demonfox (2/7/2013)
...updating column1 to column1; definitely not a good idea...
There was a thread covering exactly this, fairly recently. I'll try to track it down. IIRC the conclusion (for...
^{“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw}
For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden

February 7, 2013 at 2:59 am

#1585290
RE: How to update on condition based?

demonfox (2/7/2013)
...updating column1 to column1; definitely not a good idea...
There was a thread covering exactly this, fairly recently. I'll try to track it down. IIRC the conclusion (for most folks)...
^{“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw}
For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden

February 7, 2013 at 2:46 am

#1585284
RE: UNION vs OR --> NP-Complete Problem

GilaMonster (2/5/2013)
Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.
^{“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw}
For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden

February 7, 2013 at 2:25 am

#1585278
RE: Error converting data type varchar to numeric

~nano (2/7/2013)
Hi there
I had this frustrationg error on a query as well, all though the dataset I was using for a join didnt even contain anything other than numbers.
I got...
^{“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw}
For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden

February 7, 2013 at 2:01 am

#1585264
RE: Error converting data type varchar to numeric

DougG (2/6/2013)
...I guess what I missed from Scott's post was that all of the "THEN"s will be evaluated even if it does not pass the "WHEN" or
if a previous WHEN...
^{“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw}
For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden

February 7, 2013 at 1:36 am

#1585248
RE: error while casting a column name

ALI100 (2/6/2013)
SetFormattedValue =CASE
When rg.ReferredFieldType='NUM'
Then CAST(#PointedMslValues.Value AS NUMERIC(18,cAST(rg.ReferredDecimalPoints) )
more cases .
END
I am generating a dynamic query which is giving error actually it...
^{“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw}
For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden

February 7, 2013 at 1:23 am

#1585236
RE: Finding patterns in rows (date ordered)

greg.bull (2/7/2013)
...Would you mind explaining what the "working" line does in the cross apply line (ie is this the trigger for a new episode ?)
Regards, Greg.
PS I often get called...
^{“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw}
For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden

February 7, 2013 at 1:14 am

#1585232
RE: query tuning (PFA, execution plan and indexed view)- need help to enhance performance

saxena200 (2/6/2013)
@chris-2
PFA the execution Plan...
this is not working.... 🙁
Apologies, I missed a column from the GROUP BY:
SELECT DT.MO_OF_YR_NM ...
^{“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw}
For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden

February 6, 2013 at 8:31 am

#1584978
RE: query tuning (PFA, execution plan and indexed view)- need help to enhance performance

saxena200 (2/6/2013)
@chris-2
PFA the execution Plan...
this is not working.... 🙁
You commented out the query hint. Can you run it without the query hint commented out, please?
^{“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw}
For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden

February 6, 2013 at 8:14 am

#1584967
RE: Error converting data type varchar to numeric

Like this?
SELECT
t.*,
x.*,
y.*,
z.*
FROM (SELECT Target = 100) t
CROSS APPLY (
SELECT
DataValue = CAST(t.[Target] AS DECIMAL(15,4)),
DataType = 'C'
) x
CROSS APPLY (
SELECT vcDataValue = CONVERT(VARCHAR(20),x.DataValue,1)
) y
CROSS APPLY (
SELECT FormattedData...
^{“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw}
For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden

February 6, 2013 at 7:01 am

#1584935
RE: Error converting data type varchar to numeric

DougG (2/6/2013)
No good.
Same error on the final cross apply.
When I comment out the last cross apply, I do get results for t, x, and y.
Have another read of Scott's...
^{“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw}
For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden

February 6, 2013 at 6:39 am

#1584920
RE: Error converting data type varchar to numeric

Try using APPLY for prototyping this. When you're done, converting to an inline function is little more than copy & paste:
SELECT
t.*,
x.*,
y.*,
z.*
FROM PSBPR_Tree t
CROSS APPLY (
SELECT
DataValue =...
^{“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw}
For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden

February 6, 2013 at 6:20 am

#1584910
RE: Error converting data type varchar to numeric

DougG (2/6/2013)
ChrisM@Work (2/6/2013)
T.Target isn't one of the numeric datatypes. You're only trapping one string value from being bassed in to the function, are you sure there are not more? Have...
^{“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw}
For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden

February 6, 2013 at 6:01 am

#1584904

Viewing 15 posts - 5,251 through 5,265 (of 10,143 total)