SQL Server Too Slow

Jul 20, 2005

When I query or browse databases or tables in SQL Server 2000 it works
extremely slow. It started working like this from one day to another.

I tried reinstalling but it stayed the same.

Now I'm installing Service Pack 3, it's curious that executing
replsys.sql, replcom.sql and repltran.sql scripts in the installation
is extremely slow too.

Did anyone experienced this or have any idea?

Thanks in advance.

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SQL Server 2005 Stored Procedure Is Very Slow Vs. SQL Server 2000

Apr 18, 2008

Hi there,

I was wondering if someone can point out the error or the thing I shouldn't be doing in a stored procedure on SQL Server 2005. I want to switch from SQL Server 2000 to SQL Server 2005 which all seems to work just fine, but one stored procedure is causing me headache.

I could pin the problem down to this query:


DECLARE @Package_ID bigint

DECLARE @Email varchar(80)

DECLARE @Customer_ID bigint

DECLARE @Payment_Type tinyint

DECLARE @Payment_Status tinyint

DECLARE @Booking_Type tinyint

SELECT @Package_ID = NULL

SELECT @Email = NULL

SELECT @Customer_ID = NULL

SELECT @Payment_Type = NULL

SELECT @Payment_Status = NULL

SELECT @Booking_Type = NULL

CREATE TABLE #TempTable(

PACKAGE_ID bigint,

PRIMARY KEY (PACKAGE_ID))

INSERT INTO

#TempTable

SELECT

PACKAGE.PACKAGE_ID

FROM

PACKAGE (nolock) LEFT JOIN BOOKING ON PACKAGE.PACKAGE_ID = BOOKING.PACKAGE_ID

LEFT JOIN CUSTOMER (nolock) ON PACKAGE.CUSTOMER_ID = CUSTOMER.CUSTOMER_ID

LEFT JOIN ADDRESS_LINK (nolock) ON ADDRESS_LINK.SOURCE_TYPE = 1 AND ADDRESS_LINK.SOURCE_ID = CUSTOMER.CUSTOMER_ID

LEFT JOIN ADDRESS (nolock) ON ADDRESS_LINK.ADDRESS_ID = ADDRESS.ADDRESS_ID

WHERE

PACKAGE.PACKAGE_ID = ISNULL(@Package_ID,PACKAGE.PACKAGE_ID)

AND PACKAGE.CUSTOMER_ID = ISNULL(@Customer_ID,PACKAGE.CUSTOMER_ID)

AND PACKAGE.PAYMENT_TYPE = ISNULL(@Payment_Type,PACKAGE.PAYMENT_TYPE)

AND PACKAGE.PAYMENT_STATUS = ISNULL(@Payment_Status,PACKAGE.PAYMENT_STATUS)

AND BOOKING.BOOKING_TYPE = ISNULL(@Booking_Type,BOOKING.BOOKING_TYPE)

-- If this line below is included the request will take about 90 seconds whereas it takes 1 second if it is outcommented

--AND ADDRESS.EMAIl LIKE '%' + ISNULL(@Email, ADDRESS.EMAIL) + '%'

GROUP BY

PACKAGE.PACKAGE_ID

DROP TABLE #TempTable


The request is performing quite well on the SQL Server 2000 but on the SQL Server 2005 it takes much longer. I already installed the SP2 x64, I'm running the SQL Server 2005 on a x64 environment.
As I stated in the comment in the query it takes 90 seconds to finish with the line included, but if I exclude the line it takes 1 second.
I think there must be something wrong with the join's or something else which has maybe changed in SQL Server 2005. All the tables joined have a primary key.
Maybe you folks can spot the error / mistake / wrong type of doing things easily.
I would appreciate any help you can offer me to solve this problem.

On the web I saw that there is a Cumulative Update 4 for the SP2 which fixes the following:





942659 (http://support.microsoft.com/kb/942659/)
FIX: The query performance is slower when you run the query in SQL Server 2005 than when you run the query in SQL Server 2000

Anyhow I think the problem is something else, I haven't tried out the cumulative update yet, as I think it is something different, more general why this query takes ages to process.

Thanks again for any help

Best regards,
Pascal

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Mar 29, 2001

Hi,

we have performance problems with MS SQL Server 2000. We upsized an Access
2000 application to MS SQL server, using linked tables. Most of the time
the performance is fine (there are at most 10 users connected to the server
at the same time). However, it regularly happens that the database stops
responding. Queries, which normally take 20 ms to execute, require 20
seconds or more. In the Access client this looks as if Access has hung, it
is not responding, even though it eventually comes back to live. What I
have found out is that if I restart the SQL server, the problem disappears
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few hours.
I also looked at the performance monitor at both the client workstation and
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both at the workstations and the server is under 10 percent.
I wonder whether anybody could help me with this problem. I realise that
using linked tables in Access is not the best thing for achieving good
performance, but I still would expect at least decent performance. At the
moment the situation is worse than if we were using just Access.
For your information, the computer which the SQL server runs on is a dual
processor Pentium Pro 200 MHz, with 320 MB RAM and a SCSI RAID. The server
is the only Windows 2000 domain controller on the network and it runs
Active directory. Plus there is also Exchange server 5.5 installed on this
server. This looks like a lot for a single server, but please bear in mind
that there are only 15 users on the network.
It may be also interesting to know that we have only recently upgraded from
SQL server 7 to SQL server 2000, but we were experiencing the same problem
before, even though not so often.

Thank you for any help.

Tomas Koutny
Elink Ltd

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Any offers??

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so long

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=============================
http://www.sqlserverstudy.com

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Hi

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Sorry I wrote a book.
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Hi

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Hi,
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1/ do u guys think that s too much data, I mean about 3 millions records in a table. Because the manager said, may be if u archive some records and delete them from the tables, the system might become quick and performant?

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