by: Agoston Bejo |
last post by:
I want to enforce such a constraint on a column that would ensure that the
values be all unique, but this wouldn't apply to NULL values. (I.e. there
may be more than one NULL value in the column.)...
|
by: iStrain |
last post by:
Hiya. I'm _sure_ this is an FAQ, but Googling hasn't produced the
answer in a way I can make sense out of. I know I should get this, but
so far no way...
I'm creating tables and doing queries in...
|
by: Mike MacSween |
last post by:
This as the row source for a combo:
SELECT qryRole.RoleID, qryRole.Role
FROM qryRole
WHERE (((qryRole.RoleID) Not In (SELECT RoleID FROM qryRoleEvent INNER JOIN
qryEvent ON qryRoleEvent.EventID...
|
by: sathyashrayan |
last post by:
The standard confirms that the following initialization of a struct
struct node
{
---
---
}
struct node var = {NULL};
|
by: junky_fellow |
last post by:
Can 0x0 be a valid virtual address in the address space
of an application ?
If it is valid, then the location pointed by a NULL pointer
is also valid and application should not receive "SIGSEGV"...
|
by: Jason Curl |
last post by:
I've been reading this newsgroup for some time and now I am thoroughly
confused over what NULL means.
I've read a NULL pointer is zero (or zero typecast as a void pointer),
others say it's...
|
by: David Sworder |
last post by:
Hi,
I've created a UserControl-derived class called MyUserControl that is
able to persist and subsequently reload its state. It exposes two methods as
follows:
public void Serialize(Stream...
|
by: yossi.kreinin |
last post by:
Hi!
There is a system where 0x0 is a valid address, but 0xffffffff isn't.
How can null pointers be treated by a compiler (besides the typical
"solution" of still using 0x0 for "null")?
-...
|
by: Aaron Morton |
last post by:
I'm working on a IHttpModule that handles the PreSendRequestHeaders event
from the HttpApplication, if the event is raised after EndRequest then
HttpContext.Current is null. If it is raised before...
|
by: lovecreatesbea... |
last post by:
Do you prefer malloc or calloc?
p = malloc(size);
Which of the following two is right to get same storage same as the
above call?
p = calloc(1, size);
p = calloc(size, 1);
|
by: BarryA |
last post by:
What are the essential steps and strategies outlined in the Data Structures and Algorithms (DSA) roadmap for aspiring data scientists? How can individuals effectively utilize this roadmap to progress...
|
by: nemocccc |
last post by:
hello, everyone, I want to develop a software for my android phone for daily needs, any suggestions?
|
by: Sonnysonu |
last post by:
This is the data of csv file
1 2 3
1 2 3
1 2 3
1 2 3
2 3
2 3
3
the lengths should be different i have to store the data by column-wise with in the specific length.
suppose the i have to...
|
by: Hystou |
last post by:
There are some requirements for setting up RAID:
1. The motherboard and BIOS support RAID configuration.
2. The motherboard has 2 or more available SATA protocol SSD/HDD slots (including MSATA, M.2...
|
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,...
|
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...
|
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...
|
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,...
|
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...
|
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