| |
by: Ian T |
last post by:
Hi,
I've got what I think (probably incorrectly) should be a simple SELECT :
Two colums with data like
col1 col2
1 50
1 51
2 50
|
by: jimh |
last post by:
I'm not a SQL expert. I want to be able to write a stored procedure
that will return 'people who bought this product also bought this...'.
I have a user table that links to a transaction table that links to a
transaction items table that links to the products table:
(User Table)
UserID
Other user data
|
by: Rich |
last post by:
My table looks like this:
char(150) HTTP_REF,
char(250) HTTP_USER,
char(150) REMOTE_ADDR,
char(150) REMOTE_HOST,
char(150) URL,
smalldatetime TIME_STAMP
There are no indexes on this table and there are only 293,658 records total.
|
by: AC Slater |
last post by:
I have 1 table (out of many) that has very poor performance when performing
a select into on. The select statement is called multiple times. We've
found each call to take almost 1 second... we were expecting less than .1
seconds.
The select stmt looks like:
select key,data into key_buff, data_buff from tablename where key > curr_key
AND key < max_key ORDER by key FETCH FIRST 1 ROW ONLY;
|
by: Bing Wu |
last post by:
Hi,
Has anyone got problem with this on large table. It seems it take ages to return the result ( half an hour :-( ).
SELECT COUNT(*) FROM COORDINATE
A strange thing is the tempory space (System Managed) keeps growing during the query:
14346747904 Dec 2 16:22 SQL00002.TDA
|
| |
by: Gorilla |
last post by:
I bound my package with EXPLAIN(YES), and it's got the following static
SQL in it:
EXEC SQL SELECT CARDF, RECLENGTH
INTO :CARDF,:RECLENGTH
FROM SYSIBM.SYSTABLES
WHERE NAME = :TBNAME
AND CREATOR = :TBCREATOR
The explain shows that it does a *full table scan* on SYSIBM.SYSTABLES!
|
by: Silvio Matthes |
last post by:
Hello,
I'm new to the list and did not find a suitable answer to my question so
here it is:
I try to select the rows of a table where the content of a varchar-column
is empty ('') and PostgresQL is doing a seqscan.
I've tried this on a PostgresQL-Serverversion 7.3.4 and 8.0 beta1.
|
by: Henk Ernst Blok |
last post by:
Hi Posgres users/developers,
Can anyone explain why PosgreSQL (version 7.4.5 on Linux) does a full
table scan to compute a count(*) on a base table after a vacuum analyze
has been done with no following updates that might have outdated any
statistics. Strangly the explain command does give the correct number of
tuples instantaniously from the catalog, as one would expect. Still the
optimizer thinks it needs a full table scan to do count....
|
by: BD |
last post by:
Hi, all.
My background is more Oracle than db2. My skills at SQL tuning are
quite limited.
I'm running 8.2 on Windows.
I'm tasked with some SQL optimization, and am doing some explain plans
on various queries.
|
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...
|
by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
|
| |
by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
|
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...
|
by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
|
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();...
|
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
|
by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
|
| |
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...
|
