SET Versus SELECT

Feb 12, 2007

Hello,

I have an Output parameter as follows:
@Feedback INT OUTPUT

I want to give it a value and return it.
What is the difference between using:

SELECT @Feedback = -1
RETURN @Feedback

And

SET @Feedback = -2
RETURN @Feedback

Thanks,
Miguel

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SELECT Then DELETE Versus Extra Clause In SELECT

Nov 29, 2007

Far below (in section "original 3 steps"), you see the following:1. a temp table is created2. some data is inserted into this table3. some of the inserted data is removed based on a join with the sametable that the original select was made fromIn my opinion, there is no way that the join could produce more rowsthan were originally retrieved from viewD. Hence, we could get rid ofthe DELETE step by simply changing the query to be:INSERT INTO #details ( rec_id, orig_corr, bene_corr )SELECT rec_id, 0, 0FROM viewDWHERE SOURCE_SYS NOT IN ( 'G', 'K' )AND MONTH( VALUE_DATE_A8 ) = MONTH( @date )AND YEAR( VALUE_DATE_A8 ) = YEAR( @date )AND INMESS NOT LIKE '2__' ---- the added line===== original 3 steps (mentioned above) =====CREATE TABLE #details (rec_id UNIQUEIDENTIFIER PRIMARY KEY NOT NULL,orig VARCHAR(35) NULL,bene VARCHAR(35) NULL,orig_corr TINYINT NULL,bene_corr TINYINT NULL)INSERT INTO #details ( rec_id, orig_corr, bene_corr )SELECT rec_id, 0, 0FROM viewDWHERE SOURCE_SYS NOT IN ( 'G', 'K' )AND MONTH( VALUE_DATE_A8 ) = MONTH( @date )AND YEAR( VALUE_DATE_A8 ) = YEAR( @date )DELETE dFROM #details dJOIN viewD v ON ( d.rec_id = v.rec_id )WHERE INMESS LIKE '2__'

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Find Versus Select Error In SQL Express.

Jun 1, 2006



I am trying to look up records by the first letter of the last name in SQL Express ADO recordsets.

"Select * from people where people.lastname like 'a%'"

works correctly. (a*) works also.

ptRs.movefirst

PtRs.Find "lastname LIKE 'a%'", 0, adSearchForward

Does not work, does not find anything, but if I use 'a %' ('a<space>%') it finds the first last name starting with a.

Why does a% not work. Can you not use wild characters in Find Statements in SQL Express?


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Aug 9, 2013

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Apr 13, 2006

I'm sorry to be ignorant on this point. It seems trivial, but what's the difference between @@ and @ when using variables in T-SQL? I have a developer that always uses @@ for local variables and @ for reference variables (meaning variables declared as parameters for a stored procedure or function).

Is that purely stylistic? Is it a holdover from some previous version? Or is it a legitimate best practice that I've not seen before?

My google-shui is weak today; I found nothing when searching.

Regards,

hmscott

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Feb 21, 2007

Do you need SP1 installed before installing SP2?


http://www.microsoft.com/technet/prodtechnol/sql/2005/downloads/servicepacks/sp2.mspx

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Apr 13, 2007

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Thanks.
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Jan 30, 2004

I have two tables :

tableA
a_id (int)
value (varchar 255)

tableB
id (int)
a_id (int)
b_id (int)
c_id (int)
d_id (int)

Both these tables contain considerable amounts of rows, but over time tableA will end up containing orphaned values (i.e. the a_id is not used in tableB) and this problem cannot be rectified by setting, for example, cascade deletes.

To fix this problem I decided to write a simple stored procedure to purge all values in tableA where its a_id is not used in tableB :

DELETE FROM tableA WHERE a_id NOT IN (SELECT a_id FROM tableB)

Now although the following document relates to postgres :

http://archives.postgresql.org/pgsql-sql/2003-12/msg00174.php

I was interested to find out if I should be wary of using NOT IN in my query.

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Jun 20, 2007

Hello,



I wonder if anyone else out there has the same impression that I have: I find that DTS works much better than SSIS.



I find that DTS is so easy to use and reliable: it gets the job done and fast! On the other hand, SSIS seems to be so needlessly complex that it takes hours of troubleshooting just to get it to work, and sometimes it doesn't work at all. For example I have just spent hours trying to get SSIS to import a flat file with 300,000 rows. It just crashes and doesn't even give an error message so that one can fix it. On the other hand I have just now successfully accomplished the same task with DTS and it took me 5 minutes!



I honestly don't see a valid reason for using SQL Server 2005 instead of 2000. So far it's much more productive to use 2000.



I hope Microsoft can clarify this issue.



Regards,



Jerome Smith

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Jan 4, 2006

Hi All,
Any suggestions / views / help on below question would be welcomed.
I am building an asp.net 2.0 application with sql 2005 express as back end. My back end has 3 major tables which are:
tblArticles - saves basic info on articles posted by user (like articleid, title, short desc, rating, views, etc)
tblCategories - saves various categories and their hierarchies (id, parented, name, etc)
tblArticleCategories - saves info on which articles fall in which categories (like articleid, categoryid)
as of now, i am caching all rows from the first 2 tables, but i am in a bit of doubt for caching the third table (tblArticleCategories), although data in this table wont change very often and also this table will just have 2 columns and not many rows as well and this is a good target for caching,
but the reason I am in a bit of doubt to cache this table is, when my website visitor clicks on any category link in the category tree view, I need to use an inner join across all these 3 tables to locate and return all articles found in that particular category.
But I can do the same thing without hitting the database as I already have 2 of the required 3 tables in my cache, I can simply add the third table to my cache and then using the dataview objects rowfilter property on these 3 cached tables, I can very well get the appropriate results.
But I wonder which of the 2 methods would you prefer and suggest, I mean do you feel that just to save hits against the database, I am going to far and doing a lot of crap using the dataview (which might not be as efficient as sql engine) or you feel that the inefficiency of the dataview will still win compared to the cost of hitting the database for this
Thanks in advance, bye take care
Raj Chaudhari, Mumbai, India (MCAD.NET)
www.xtremebiz.biz

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Feb 16, 2006

Hello all,
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Or would I be better off selecting the data by means of an sql statement and updating the column whenever the statisitcs page is requested.
Does sql provide any methods which allow a column to count other rows or columns?
 

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Hi all,

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Any ideas appreciated,
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1) Is there a way to regulate the amount of 'space available'?
2) are there any rules of thumb for how 'space available' there should be?

Appreciate any feedback or help.

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Dec 14, 2006

Hi all,

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Is there any problem using our current 32-bit Server software on the 64-bit machines (apart from not being able to utilise its full power)? I'm assuming the SQL 2005 licenses are the same price regardless of 32-bit or 64-bit version. If we buy a 64-bit SQL Server version license are we going to get the best out of it on a 32-bit Windows Server edition?

tia - Matt

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Oct 29, 2007

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Thanks!!

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Oct 10, 2007

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TIA

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Jun 25, 2007

This question probably overlaps a few different topic areas.



As I will be required to work with both Oracle and SQL Server I will be in a difficult position with SSIS(due to it's change in distribution).



Therefore I am having to look at alternatives.



With coding a can open a text file and parse it reasonably to my satisfaction. However getting the data into the database is incredibly slow.



I am using an Insert into for each line, which I am sure everone will shake their head over. This seems to be pretty slow even using transactions.



Is there any scope in using data tables or have the read on one thread and write on another.



Other than that is there an Oracle equivalent of SSIS which comes (probably get shot for asking that on a microsoft web site, but would probably get shot if I asked on Oracle forums as well).



In the past we had reasonable results in outputting to csv and then doing some sort of bulk insert, messy and irritating though this may be.



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So if anyone can gie me the pro's and con's i would appreciate it.

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Hi,

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I'm using sql compact to store some data. I often have to store strings (descriptions, url, etc.) but I don't know when to use nvarchar or ntext.

Nvarchar needs to have a size limit, but I often set it to 8092 when I don't know the actual limit (urls can be very long !).
I fear Ntext because I suppose there is performances impact.



Is there any "rules" to help to choose which data type I'd use ?

Thanks,
Steve

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Apr 10, 2008



Hi

we are currently working in a project where we need to create reports in Visual Studio 2005. the parent screen has a drop down which specifies the name of the report along with some other parameters. then the report is displayed in the same screen. now the issue is we are pretty much confused as to what to use to generate these reports? HTML or SSRS? the input fileds are only from date and to date and the displayed fileds are also not that many.

can some one please throw light on this?

Thanks,
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Aug 21, 2006

Given the following objective:
1. Assume that I have a table that contains two fields: an auto-numbered id and an integer value2. Check to see if a record exists in a table based on a parameter query of the integer value3. If the record exists, return the record id4. If the record does not exist, insert a new record into the table (using the parameter value as data) and return the auto-numbered id of the new record
I can do each of these things as a sequence of individual steps, of course, but it seems to me that I ought to be able to do it with a single udf (or perhaps a specialized query) that would be more efficient. I couldn't find something like this in the beginning SQL Express books I have on hand and I also didn't find anything exactly on point on this newsgroup or a search of Google. However, I am sure the answer is 'out there' and I am hoping that someone can point me in the right direction. Thanks!
Duncan
 

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Nov 1, 2000

I have a complex(long) SQL statement inside of a stored procedure which feeds several variables from 2 tables. Something like

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table1.id = table2.id

Is there any advantage to creating a view for this statement
and selecting from that, even though this resides in a stored procedure?

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May 14, 1999

Ive got SQL Server 7.0 running in one domain and i'm trying to access it
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Ive tried several combi nations with out success. My best result is to
get an error message followed by a login box every time the application,
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Works fine from workstations belonging to the domain (SQL)

Any ideas ?

Thanks
Jan

We are what we repeatedly do. Excellence, then, is not an act, but a
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