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by: george |
last post by:
Hi All
I have a few questions and I am hoping some of you gurus maybe able to help.
As I understand, there are 3 basic types (and some subtypes) of joins: inner
join, outer join and cross join. What is the difference between the cross
join and fuller outer join and why would you ever use self join?
Apart from prepared and direct execution, is there any other types?
And finally, what do these settings mean:
rdExecDirect
SQLExecDirect...
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by: Marcin Ciura |
last post by:
Here is a pre-PEP about print that I wrote recently.
Please let me know what is the community's opinion on it.
Cheers,
Marcin
PEP: XXX
Title: Print Without Intervening Space
Version: $Revision: 0.0 $
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by: stewart.midwinter |
last post by:
No doubt I've overlooked something obvious, but here goes:
Let's say I assign a value to a var, e.g.:
myPlace = 'right here'
myTime = 'right now'
Now let's say I want to print out the two vars, along with their names.
I could easily do this:
print "myPlace = %s, myTime = %s" % (myPlace, myTime)
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by: Prem |
last post by:
Hi,
I am having many problems with inner join. my first problem is :
1) I want to know the precedance while evaluating query with multiple
joins.
eg.
select Employees.FirstName, Employees.LastName, TerritoryID,
Employees.EmployeeID,
RegionID, ProductID
from Employees
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by: Prem |
last post by:
Hi All Database Gurus,
I am trying to write code which will produce all the possible valid
queries, given tables and join information for tables.
Right now i am just trying to construct all the sequential joins.
eg. if i have 4 tables A, B, C, D and the join conditions are
A Inner join B,
B Inner Join C,
C Left Outer join D
then i am constructing joins as :
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by: H Cohen |
last post by:
If a database has relationships establshed between all of the tables
via primary and foreign key constraints, why isn't is possible to make
a SELECT statement across multiple tables without using a JOIN?
If the system knows the relationsip schema already why are JOINS
required?
Thanks,
HC
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by: Steve |
last post by:
I have a SQL query I'm invoking via VB6 & ADO 2.8, that requires three
"Left Outer Joins" in order to return every transaction for a specific
set of criteria.
Using three "Left Outer Joins" slows the system down considerably.
I've tried creating a temp db, but I can't figure out how to execute
two select commands. (It throws the exception "The column prefix
'tempdb' does not match with a table name or alias name used in the
query.")
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by: SQL-Newbie |
last post by:
Hi,
I'm new to SQL trying to use a base that was set up by another firm.
I can't get it to do what I want and I don't know if it's due to my
ignorance or bad table design ...
I have three tables
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by: shapper |
last post by:
Hello,
I am used to SQL but I am starting to use LINQ.
How can I create Left, Right and Inner joins in LINQ? How to
distinguish the different joins?
Here is a great SQL example:
http://www.codinghorror.com/blog/archives/000976.html
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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: 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,...
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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...
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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: 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: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
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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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