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by: Thomi Baechler |
last post by:
Hello Everybody
I run the following query against to identical databases. Execution
time on the first DB is 0 seconds, on the other 6 seconds!
SELECT dbo.HRMABZ.EMPKEY , dbo.HRMABZ.CONNUMB
, dbo.HRM_CALENDER.Datum, dbo.HRMABZ.ABZTXT
FROM dbo.HRM_CALENDER INNER JOIN dbo.HRMABZ
ON dbo.HRM_CALENDER.Datum >= dbo.HRMABZ.ABZDATF
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by: djwhisky |
last post by:
Hi there - i'm hoping someone can help me!
I'm having a problem with a live database that i'm running on MSDE - It
seems to have slowed down quite considerably from the test environment
(even when all the data is the same). The is notably different on one
particular query that takes 1 sec on the test machine and almost 1 min
on the live machine
The total number of user connections on the live machine is normally 4
or so (found out...
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by: Dmitry Tkach |
last post by:
Hi, everybody!
Here is a weird problem, I ran into...
I have two huge (80 million rows each) tables (a and b), with id as a PK
on both of them and also an FK from b referencing a.
When I try to run a query like:
select * from a, b where a.id >= 7901288 and a.id=b.id limit 1;
The query takes *forever*.
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by: apb18 |
last post by:
A bit of query plan strangeness. Suppose you have an inheritance tree
such that the columns 'ID' and 'field' appear in the top level table,
call that table XXX. tables YYY and ZZZ both inherit XXX. Now suppose
there exists some query that returns a set of IDs that match some criteria
(that query may involve various tests/joins/etc on other arbitrary
tables). Executing that query alone produces an optimal plan and the
exact result set...
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by: Ryan |
last post by:
I came across a situation that I've been unable to explain and was
hoping somebody had an answer:
I had written an update query which was taking about 8 seconds to run
and considered it too slow. I copied the SQL statement from the query
and tried executing it from code which then ran in 1 second. To make
sure that I didn't miss anything, I copied the SQL statement back into
a query and tried running it again. It now also only took 1...
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by: wizofaus |
last post by:
I have a chunk of code which is essentially
IDbCommand cmd = db.CreateCommand();
cmd.CommandText = "SELECT X, Y, Count(*) FROM Foo WHERE Z = 1 GROUP BY
X, Y";
using (IDataReader reader = cmd.ExecuteReader())
while (reader.Read())
{
// grab values from query
}
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by: Luke.Schollmeyer |
last post by:
I found an unusual problem between 2000 and 2005 I haven't been able
to decipher from any documentation.
The query structure is as follows:
select *
from
tableA a
join
tableB b ON a.somekey = b.somekey
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by: Don Li |
last post by:
Hi,
Env: MS SQL Server 2000
DB Info (sorry no DDL nor sample data):
tblA has 147249 rows -- clustered index on pk (one key of
datatype(int)) and
has two clumns, both are being used in joins;
intersecTbl4AB has 207016 rows -- clustered index on two fks and
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by: dvelst |
last post by:
Hi All,
I have the following query which was based on a working query in MySQL:
(don't be afraid of the size of the query you see below, later on I will concentrate on part of this query)
SELECT count(*) FROM ((SELECT * FROM tileinfo where julianDay BETWEEN DATE2JDAY(('2003-03-01 00:00:00'),0) AND DATE2JDAY(('2003-03-01 23:59:59' ),0) AND intersects(tile, geomFromText('POLYGON((-10.84 35.8,18.14 35.8,18.14 59.41,-10.84 59.41,-10.84...
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by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
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by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
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by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
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by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
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by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
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by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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