Limiting The Resources

Jun 13, 2007

Hi

I have a problem on microsoft sql server 2000.
I need to limit the amount of resources(eg cpu, mem..) a query uses
Is there a way to do this in SQL server 2000


Thks in advance
:eek:

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How Limiting Is MS SQL?

Sep 3, 2007

I'm trying to decide whether MS SQL will allow me to accomplish the following objectives at no cost, or whether I'd eventually have to pay for an MS SQL upgrade to accompish my objectives.

I have big, unrealistic dreams. I want to create a humorous newsblog into which I would post more than a dozen times a day. Most of the posts would have large photographs. Presumably, I'd archive the posts by subject and ranking and 'most viewed," etc., using a database.

1) Will the space limitations of the MS SQL Express edition be an issue after a while?

2) Could I hire a web developer to help me from a remote location, once the website is large enough to warrant expansion? Or does the MS SQL Express edition allow only one user? I read something I didn't understand about CPU restrictions.

3) I'm confused because web hosts advertise the availability of MS SQL databases on their server...so does that mean I wouldn't have to buy an upgrade if it became neccessary? (I know, I'm shockingly uneducated.)

4) I'm going to buy Office 2007. Is it important to purchase a package that includes Microsoft Access, given my goals?

5) Any other thoughts in plain english on how the MS SQL express edition imposes limitations....basically, I don't understand how MS SQL Express might limit me down the road if the site were actually a success. What would have to happen before I would be forced to spend a lot of money on an upgrade later?

I'm almost completely new to computing. I've read a bunch of criticisms of MS SQL Express on internet forums that I didn't understand, but that really made me worried about my decision to go with Microsoft Products and Asp.net web hosts. (I understand some people have an irrational dislike of Microsoft, but there was A LOT of bashing.)

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May 31, 2004

Hi,

please do help. Have been wrestling with this for about 3 hours and read a buncha forums + searched the tutorial lists.. AARRGH!

Anyhow,

I have to paginate a datalist (and I really can't use a datagrid because of the layout, blame the bluddy graphic designer)

I want to return the top 8 rows, the next 8 top rows and so on.

This is the sql string I have:
'retrieve pagination in order to construct the rest of the sql string
Dim startrec As Integer
If pageno = 1 Then
startrec = 0
Else
startrec = (pageno - 1) * pagesize
End If
' this builds the sql string, getting ONLY the records we need for this. Page size is a constant expressed on the base page
' startrec is the record where I want to start in the db.
strsql = "select top " & pagesize & " * " & strsqlbasic & " and itemID>" & startrec & " order by itemnotes1 asc"
noresults.text = strsql & " <br> " & searchwhat & searchfor

strsqlbasic is constructed elsewhere and is just the 'from X where y = var

Of course, this returns all records where the value of itemID is greater than the value of startrec. How would I change this so it returns the next 4 rows starting from the row number given by the value of startrec?

thanks for any help.

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Mar 23, 2001

I was wondering if there is a way to select ranges of rows, for instance:

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May 24, 2008

I'm trying to write a query where if the value of one of the paramters is equal to "-1" it will not include one of the search criteria. For example I have a param called "Gender". 0 = Male and 1 = Female. If the value of the "Gender" param is "-1" I'd like it to find either Males or Females.

Code (please not this doesn't compile):

SELECT
[UserID],[Gender]
FROM
[table_user]
WHERE
Country = @Country
AND IsOnline = @IsOnline
IF (@Gender != -1)
AND Gender = @Gender

Obviously this doesn't work, but I think it conveys the gist of what I'm trying to do. Does the secret lie in default parameters? Or is my IF syntax just flat out wrong?

Thanks!

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Sep 22, 2005

I am trying to convert some mySql code to sqlserver and was amazed to see that sqlserver has no functionality to specify the rows of a select statement. In mySql its e.g. "SELECT * FROM table LIMIT 20, 10" this returns ten rows starting from row 21. Using TOP in sqlserver only returns the top n rows but what if I want row 20 to 30? Is there an easy way that I have just missed or does one realy have to do something like "SELECT TOP 60 * FROM myTable WHERE id NOT IN (SELECT TOP 40 id FROM myTable);"?

Hope you can reply with good news...

Ed

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Aug 18, 2007

 Hello everyone.. I'm working here on a little problem which's driving me nuts : I have two tables :EQUIPMENT :

-EQID
-EQName
-EQblabla QUALITYCHECK :

-QCID
-EQID <---- Is connected with EQUIPMENT
-QCDATE
-QCACTION
-QCnextdate They're needed to manage Qualityactions on some machines we own. Every year, we do quality actions on every machine, after then, we Inserta new QUALITYCHECK-entry into our database and automatically theQCnextdate is generated with QCdate+365days. So far, so easy. So now, how will i do a query against the DB with the NEWEST  QUALITYCHECK-entrys for every machine ? The result has to besmth. like that : EQID | EQName | QCDATE | QCNextdate

1 | machine 1 | 21.12.2006 | 21.12.2007
2 | machine 2 | 21.06.2006 | 21.06.2007
3 | machine 3 | 21.11.2006 | 21.11.2007
4 | machine 4 | 21.12.2005 | 21.12.2006
5 | machine 5 | 23.10.2006 | 23.10.2007

AND NOT

EQID | EQName | QCDATE | QCNextdate

1 | machine 1 | 21.12.2006 | 21.12.2007
1 | machine 1 | 21.12.2005 | 21.12.2006
1 | machine 1 | 21.12.2004 | 21.12.2005
1 | machine 1 | 21.12.2003 | 21.12.2004
2 | machine 2 | 21.06.2006 | 21.06.2007
2 | machine 2 | 21.06.2005 | 21.06.2006
2 | machine 2 | 21.06.2004 | 21.06.2005
2 | machine 2 | 21.06.2003 | 21.06.2004etc..
I tried several things with top 1, subquerys, distinct etc..But unfortunatly it seems that im not capable to solve the problem..I would be thankful for any suggestions !       

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Aug 25, 2004

Hello.

I am trying to limit the number of records to start in a position and show me "n" records. Here is an example query:

SELECT TOP 60 * FROM Entries WHERE Id NOT IN ( SELECT TOP 45 Id FROM Entries ORDER BY Id DESC ) AND Static = False AND Authorized = False ORDER BY Id DESC

It's not working correctlly. Any ideas?

Thanks in advance.

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Aug 5, 2004

Hello,

We are migrating from VB6/MySQL to VB6/MS SQL.

The application retrieves limited records for paginated results.
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For example:
Select row 1 - 10, then 11 - 20 then 21 to 30 etc.

With MySQL we can use LIMIT and OFFSET and it works great.
MySQL
SELECT <columns> FROM <tables> [WHERE <condition>] [ORDER BY <columns>]
[LIMIT [offset,]howmany>]

Does anybody know how we can do something similar with MS SQL?

Any feedback is appreciated!

Thank you,

Edi

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Feb 16, 2007

I know how to do this in MySQL; but I was hoping there was a way to do it in MS SQL.

I want to be able to limit the number of rows an UPDATE or DELETE will effect regardless of the WHERE clause. I want to do this as a stop gap in the event that there is a logical error in the WHERE clause that would make it effect more rows than is humanly intended.

If I write a complex query that I know should drill down to only affecting one row, I just want to lock it in before I run it on database and take the risk of damaging some data.

In MySQL you would just do something like this:

Code:

DELETE FROM table_name WHERE ... LIMIT 1;



The only thing close to LIMIT I could come up with for MS SQL was TOP but it seems to only work for SELECT.

Any ideas would be greatly appreciated.

I ask this because if you screw up; manually saving 1, 2 or even 5 rows is a lot easier than having to rescue a whole table of data (even if it on a development server).

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Sep 7, 2006

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example:

cp1, p1, st1, 1/1/6
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thanks.

any ideas?

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Apr 2, 2015

Let me start off with my table layouts.

CREATE TABLE [dbo].[Competition] (
[Id] INT IDENTITY (1, 1) NOT NULL,
[Name] NVARCHAR (150) NOT NULL,
[Remarks] NVARCHAR (350) NULL,
[Start] DATETIME NOT NULL,
[IsActive] BIT NULL,
[End] DATETIME NOT NULL,

[Code] ....

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Declare@EntrySelection int= 10
select top (@EntrySelection)
[dbo].Entries.Id,
[dbo].Entries.CatchDate,
[dbo].Entries.CompetitionId,
[dbo].Competition.Name,

[Code] ....

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Thanks everyone

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How do i do this??



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--Kevin Fairchild

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Dec 24, 2007

Hi,

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Oct 5, 2007

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2) What "executable files" is this definition referring to?


MAXCONCURRENT is defined as:

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Feb 13, 2008



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I’m thinking about the best way to run these queries, which need to be run regularly.

The first query is two tables linked, one is a data table containing a unique person identifier and three activity fields, the second a lookup table with an activity_type linked to the activity in the table data.

Data Table
PersonID
Lots of other fields
Activity1
Activity2
Activity3

The ACTIVITY fields can contain data anywhere between all being NULL and all being complete.

Lookup Table
ActivityID
ActivityDesc ( which appears in Activity 1 – 3)
ActivityType

I’d like to create a function which will create a recordset containing the Person ID and the Activity Type. I am unsure as to whether to do this in a way which will create one record for each person, or potentially 3 records for each person. This is how I have done the 3 records:

SELECT PersonID, Activity1 As Sport, ActivityType
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UNION
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[Code] ...

And this is how I have done the 1 record:

SELECT ClientID,
Activity1,
(SELECT ActivityType from dbo.tblLUActivityType where ActivityDesc = Activity1) As ActivityType1,
Activity2,
(SELECT ActivityType from dbo.tblLUActivityType where ActivityDesc = Activity2) As ActivityType2,
Activity3,
(SELECT ActivityType from dbo.tblLUActivityType where ActivityDesc = Activity3) As ActivityType3
From dbo.tblActivity
LEFT JOIN dbo.tblLUActivityType ON dbo.tblActivity.Activity3 = dbo.tblLUActivityType.ActivityDesc
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The reason I would like to do this is because I need to create a stored procedure which returns one record per person with two fields (Person Id, ActivityType) which states their ActivityType depending on certain rules:

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Rule 2:  Of the rest of the recordset, if any of Activity 1 – 3 are ‘N’ but none of Activity 1-3 are ‘O’ or ‘A’ then report the Person ID and ‘N’.

Rule 3:  Of the rest of the recordset, if any of Activity 1 – 3 are ‘A’ but none of Activity 1-3 are ‘O’ or ‘N’ then report the Person ID and ‘A’.

Rule 4: Of the rest of the recordset, if any of Activity 1 – 3 are ‘A’ and one of the is ‘N’ then report the Person ID and ‘AN’.

At the end this I’m looking for one recordset with two fields containing a personID and one of ‘O’, ‘A’, ‘N’ or ‘AN’. I can do the first part of this in any way necessary, as long as the second part returns the recordset I need. 

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Hi..

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