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by: Ilan Sebba |
last post by:
I have a 'supertype' table with only one field: autonumber. Call this table
the 'parent' table. There are two subtypes, 'androids' and 'martians'.
Martian have only one thing in common: they give birth to identical mules.
So each android and a martian have primary key which is a foreign key to the
parent table. Now, I want to insert a new record in 'android' or 'martian'.
This can be done easily using MS-Access forms. But I want to do...
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by: Lee C. |
last post by:
I'm finding this to be extremely difficult to set up. I understand
that Access won't manage the primary key and the cascade updates for a
table. Fine. I tried changing the PK type to number and setting
default value to a UDF that manages the auto-numbering. Access won't
take a UDF as a default value. Okay, I'll use SQL WITHOUT any
aggregate functions, for the default value. Access won't do that
either. Okay, I create a second...
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by: Traci |
last post by:
If I have a table with an autonumber primary key and 100 records and I delete
the last 50 records, the next record added would have a primary key of 101. Is
there any way to have the primary key start at 51 after the last 50 records are
deleted?
Thanks!
Traci
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by: yf |
last post by:
A KB article
"http://support.microsoft.com/default.aspx?scid=kb;en-us;209599" tells
that the maximum number of records that a table may hold if the PRIMARY
key data type is set to AUTONUMBER is 4,294,967,295.
Suppose the PRIMARY key data type is set to "RANDOM" AutoNumber.
Suppose an application
(a) successfully INSERTS "X" records, then
(b) successfully DELETES "Y" records (X >= Y), then
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by: jimfortune |
last post by:
Sometimes I use Autonumber fields for ID fields. Furthermore,
sometimes I use those same fields in orderdetail type tables. So it's
important in that case that once an autonumber key value is assigned to
a record that it doesn't change. Occasionally I find that due to
corruption or an accidental deletion and restore of a record from a
backup the autonumber field needs to be tidied up. So when I create
(through AddNew) the autonumber...
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by: petebeatty |
last post by:
I have created a SQL string the properly inserts a record in the table.
However, the insert does not occur at the end of the table. Instead
it inserts a record after the last record that I viewed. This would be
OK, except it assigns a autonumber to be one greater than the last
viewed record. This causes a duplicate autonumber. I know I can
change the autonumber index (Primary Key) to not allow duplicates.
How can I force the insert...
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by: Alan Mailer |
last post by:
A project I'm working on is going to use VB6 as a front end. The back
end is going to be pre-existing MS Access 2002 database tables which
already have records in them *but do not have any AutoNumber* fields
in them.
Correct me if I'm wrong, but I'm assuming this means that I cannot now
alter these existing Access tables and change their primary key to an
"AutoNumber" type.
If I'm right about this, I need some suggestions as to the...
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by: gtwannabe |
last post by:
I'm having a problem with a form that uses AutoNumber as the primary
key. I have an Abort button to delete the current record and close the
form. If AutoNumber is assigned, the code executes a SQL statement
that deletes the current record. I need to be able to detect when
AutoNumber is unassigned (a new blank record) so that I can simply
close the form without running the SQL delete statement.
Unfortunately, no tests I can think of...
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by: Tom_F |
last post by:
To comp.databases.ms-access --
I just discovered, to my more than mild dismay, that some tables in my
Microsoft Access 2003 database have duplicate numbers in the
"AutoNumber" field. (Field Size is set to "Long Integer", and New
Values is set to "Increment".) I know that an old version of the Jet
database engine can cause this problem, but my version of msjet40.dll
is 4.0.8618.0, which is supposedly bug-free in this respect. I am...
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by: ashes |
last post by:
Hi,
I am creating an ecommerce website using Microsoft Visual Studio, VB.Net and MS Access 2003. I am new to VB.Net
When someone wants to register on the website, they fill out a form and the contents of the form is inserted into the MS Access database.
The Customer table in the database already has 30 records (with CustomerIDs 1 - 30) in it (from when the database was first created). The CustomerID field in the database is an...
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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: 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: 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: 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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