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by: Marcus |
last post by:
I'm running into a situation that has me adding a value of "Unknown" to
a reference table. I am being pulled between two trains of thought, and
was curious to get other's input on in. I give an example below.
1-) Adding "Unknown" to a reference table is bad. Doing so effectively
changes the Nullability option of every FK that references the table to
a NULLable FK relation.
2-) Simply adding a "Not Known/Undetermined" value to the...
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by: Robin Tucker |
last post by:
Hi,
Can anyone tell me how to select the "most recent" date values from a
grouped query? Consider the following:
CREATE TABLE . ( NOT NULL , NOT
NULL , NOT NULL ) ON
This is a simplified adjacency list. What I want to do is find the highest
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by: Denzil |
last post by:
Hi,
I am retrieving my DB values and setting them in the
MyRS::DoFieldExchange(CFieldExchange* pFX) function. One of these
records is a Long datatype and could be "Null" in the DB table.
The issue is when the DB value is retrieved it is fine for all
integers but for a "Null" value it returns a junk long value
and not a pre-defined value, say.
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by: JBrow |
last post by:
Hi everyone,
I have a form with several fields. One represents the primary key. If you
leave it blank and try to save the record, the forms displays the following
error message - "Index or Primary Key cannot contain a null value". I
understand why it is doing this, but I'm wondering if I can program a
friendlier message. Any help would be great.
Many Thanks!
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by: Mark Sullivan |
last post by:
When I trace through a csharp program I came to a situation where a certain values
has an "undefined value" as shown in the debugger DbgClr.
I want to check this but the following statements did not recognize this "non"-value
if (type.Particle != Undefined.Value) { ....
or
if (type.Particle != null) { .....
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by: kaka |
last post by:
I'm runnig Redhat 7.3 with postgresql 7.3.4 builded from sources and
upgraded recently. I receive this error ( never received before upgrade
) and I don' t know what to do.
Error while executing the query; ERROR: date/time field value out of
range: "28/05/2004 02:15:57"
SQL = "insert into...
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by: mulham.haffar |
last post by:
Hi, im writing an application that uses tcpclient to connect.
I have a class which makes the whole network stuff.. As below:
Public Class Connections
Private Client as tcpclient
Private Stream as network stream
Public Sub Connect()
Client.Connect(..)
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by: John Bailo |
last post by:
I want to pass a SqlCommand object as a input parameter to a method.
I want to pass the SqlCommand "by value" so that any updates to the
original object are *not* reflected in the object within my method.
How can I do this?
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by: JustJim |
last post by:
Just when I thought I was getting my head around Null values....
I have a report with three sub-reports, on each sub-report footer I count how many records in the subreport. No problemo.
On the Detail section of the main report, I have a text box which adds up all these counts and shows how many (people) in total. Again, no problems... as long as there is at least one entry in each sub-report. Ahh thinks I, I must trap for null values....
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by: dkyadav80 |
last post by:
<html>
///
here what shoud be java script for:
->when script run then not display all input text field only display selection field.
->when user select other value for institute only this field display not display degree text field
->when user select other value in the selection field for degree then text field display and wise versa
////
<bodly>
<table>
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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: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
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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: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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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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