by: Guinness Mann |
last post by:
Greetings,
I think I saw an article yesterday in which you told someone not to make
an Identity column a primary key. I seem to remember you saying
something like "It undermines the entire...
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by: Michael D |
last post by:
What are the pros and cons of the following two design methods ?
(1) Using foreign keys to form a composite primary key of a child
tables -- as in Example.
POOR MAN'S ERD PROVIDED FOR SUMMARY...
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by: Krist |
last post by:
Hi All,
There is some additional info I forget on this same topic I just posted.
I have a database design question, pls give me some help..
I want to define tables for salesman's sales target...
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by: Rodney King |
last post by:
Hi,
I am supporting an application that was converted from ACCESS to SQL
Server 2000. My question focuses on two particuliar tables. The
parent table has 14000 rows while child table has over...
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by: StenKoll |
last post by:
Hi! I am fairly new to access and not very familiar with vba
programming. I am trying to setting up a database of shareholders in a
company. So far I have managed to build tables containing owner...
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by: Peter |
last post by:
Hi, I have two datatables and I want to efficiently query the
intersection of the two using the studentID. In my example code below,
I want to print out Mary and Jane and their exam grades and I...
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by: Agnes |
last post by:
I got some table design problem and hope someone can give me advice.
I got an InvoiceTable with the primary key Invno, InvoiceChgtable will keep
the charges , noofunit, unitpirce.. etc, its primary...
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by: Dennis Gearon |
last post by:
My question is it possible to speed up a query doing preselects? What I'm working on could end up being a very large dataset. I hope to have 100-1000 queries per second (0r more?), and if very large...
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by: MP |
last post by:
Greets,
context: vb6/ado/.mdb/jet 4.0 (no access)/sql
beginning learner, first database, planning stages
(I think the underlying question here is whether to normalize or not to
normalize this...
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by: smadden |
last post by:
I have a simple Access database with 4 tables so far. Here is my
question:
Talble 2 lists "vulns" and there descriptions. Each has its own
primary key and relates to table 1.
Table 3 lists...
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by: Charles Arthur |
last post by:
How do i turn on java script on a villaon, callus and itel keypad mobile phone
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by: ryjfgjl |
last post by:
If we have dozens or hundreds of excel to import into the database, if we use the excel import function provided by database editors such as navicat, it will be extremely tedious and time-consuming...
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by: ryjfgjl |
last post by:
In our work, we often receive Excel tables with data in the same format. If we want to analyze these data, it can be difficult to analyze them because the data is spread across multiple Excel files...
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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,...
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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...
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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,...
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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...
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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...
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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...
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