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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: sheree |
last post by:
I have 3 tables (amoung a few others) in a small access database. The
tables are as follows:
==
AEReport
--------
AEID (PK)
RptCatelog
GCRCID
PatientID
EvntDate
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by: leavandor |
last post by:
I am trying to design a query that works with a relationship between a
Table and a Query. I am comparing a value in the table with a computed
value inside the query.
The reason for this is that the Query calculates a field to become
identical to the corresponding table field, for instance:
Table 1 contains field "ID", which is WV008A00
Table 2 contains field "ID In", which is WV001000
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by: Bri |
last post by:
Hi,
First let me explain the process I have going on, then I'll address the
problems I'm having:
1) Insert records in a temp table using a query
2) Using a query that joins the temp table with TableA Insert records
into TableB
3) Delete records from temp Table
4) Table specs;
temp Table - 4 fields, 3 indexes, gets 100-4500 records inserted
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by: phil-news-nospam |
last post by:
Is there really any advantage to using DIV elements with float style
properies, vs. the old method of TABLE and TR and TD?
I'm finding that by using DIV, it still involves the same number of
elements in the HTML to get everything just right. When you consider
the class attribute on the DIV elements, there's not much size savings
anymore for using DIV.
There are other disadvantages to not using TABLE/TR/TD, such as the
lack of ability...
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by: CanFlightSim |
last post by:
I am not very strong in databases, so you must forgive any obvious
stupidity.
After having a good look at our Sales Managemend database, we decided
there is something basially wrong.
Our Agents sell financials to only a few customers. The database was
set up as...
Table Table (Join)
Table
Agent (AgentID ) (AgentID)( >Customer(CustomerID)
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by: yanjie.ma |
last post by:
Hi,
I've got a two part question on table and form design (sorry for the
length but it takes a bit to explain). Our sales department uses a
look-up table to help the them select the best equipment to use for a
customer's needs. It basically consists of a table with the following
setup:
Equipment: Option1: Option2: Option3: Option 4: ...
-------- ------- ------- -------- --------
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by: MMcCarthy |
last post by:
Normalisation is the term used to describe how you break a file down into tables to create a database. There are 3 or 4 major steps involved known as 1NF (First Normal Form), 2NF (Second Normal Form), 3NF (Third Normal Form) and BCNF (Boyce-Codd Normal Form). There are others but they are rarely if ever used. A database is said to be Normalised if it is in 3NF (or ideally in BCNF). These steps are descibed as follows:
Note: When attribute...
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by: Haas C |
last post by:
Hi all,
I'm trying to create a relationship between two tables with related
fields (Employee), however when I try to Create the join in
Relatioships, the 'Edit Relationships' box appears and it tells me that
the Relationship Type is "Indeterminate". I tried creating and Outer
Join and an Inner join, but keep getting the same status. What am I
doing wrong. Please help - I'm a newbie. There are many Employees on
the Sales table and unique...
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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: 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: 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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