|
An example of sql Statement
Select name1,name2 from Table1 WHERE (name LIKE '%hello%' or Col='123') AND check IS NOT NULL
|
|
|
|
|
You've already been instructed on how to do this in at least two different ways.
"Talent without discipline is like an octopus on roller skates. There's plenty of movement, but you never know if it's going to be forward, backwards, or sideways." - H. Jackson Brown, Jr.
"Judge not by the eye but by the heart." - Native American Proverb
|
|
|
|
|
Flaviu_2006 wrote: //--------- i need some help please -------------//
hum, yeah, that's definitely a good sumarize of your problem... i think you could add VERY URGENT in it !
|
|
|
|
|
|
You can use from a query and I remember that you said you have 60000 records and I said to you I searched for you for speed and I found a good link but I losed it if you can find this site on this site you can see algorithms for search on databases I guess its very helpful for you
|
|
|
|
|
what site ?
please tell me !!!!!!!!!!!!!
Bravoone
|
|
|
|
|
I said i found for you morning but I losed it Im sorry in fact I see your questions about speed (i think more 15 question ) and I searched but I losed Im sorry.
|
|
|
|
|
|
This is not and IDE, not need to comment your lines?
//-----Why the hell you add these extra pipes and slashes? Doesn't it look aweful ?----//
<marquee scrollamount="1" scrolldelay="1" direction="up" height="10" step="1">--[ ]--
[My Current Status]
Link2006 wrote:Let's take it outside of CP
Jeremy : Please don't.I would love to see this.I'm making the popcorn already.
|
|
|
|
|
but I think in VC we use //statement not //statement//
|
|
|
|
|
// hey but adding a // at the end of the comment line says that the comment is over. We use in our VC++ //
/* you get me or not */ ?? ;P
<marquee scrollamount="1" scrolldelay="1" direction="up" height="10" step="1">--[ ]--
[My Current Status]
Link2006 wrote:Let's take it outside of CP
Jeremy : Please don't.I would love to see this.I'm making the popcorn already.
|
|
|
|
|
in my header file i wrote this code:
class CMyDlg : public CDialog
{
public:
int varCount;
vector<<int> intVec;
}
and in the cpp file wrote this code :
void CQMDlg::OnGetvarCountButton()
{
for(int i=0;i!=varCount;i++)
{
intVec.push_back(i);
}
}
there is no error in compilation but when i press that specific button, program hangs.
can somebody help me?
thanks
|
|
|
|
|
Have stepped in to the code ? what varCount is expected to initialize with? Probably its not initializing properly and going into loop.
|
|
|
|
|
How exactly have you initialized varCount ?
Your loop has a problem:
for(int i=0;i!=varCount;i++)
while i is not equal to varCount, thats just asking for trouble. Try changing it to
for(int i=0;i<varCount;i++)
|
|
|
|
|
thank you guys.
yes, my problem was in varCount initialization.
and i have another problem. when i write
intVec.
the property container menu of intVec doesn't appears.
|
|
|
|
|
Intellisense doesn't work ? That doesn't really matter, does it ?
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
|
|
|
|
|
Many times, deleting .ncb file in project folder and rebuilding application do work.
|
|
|
|
|
thanks
i deleted the .ncb file and now it's working.
|
|
|
|
|
waldermort wrote: while i is not equal to varCount, thats just asking for trouble
How?
|
|
|
|
|
Because, it can easily happen, that you skip that specific value, for whatever reason. You could accidently increase the counter twice, initialize it with a value larger than varCount and stuff like that. It's just a matter of clean and readable code. If you want a loop to run as long as i is less or equal some other value, then you should write your condition that way. Lots of problems and timewasting during debugging happen due to such dirty practices.
Then again, STL-Iterators work just that way ( it = YourVector.begin(); it != YourVector.end(); it++ ), but that don't mean it's good =).
|
|
|
|
|
Actually, I dont follow coding style, by OP,too. All points mentioned by you are valid.
But in given code , that doesn't matter.
As revealed later, it was initializatin problem.
|
|
|
|
|
prasad_som wrote: But in given code , that doesn't matter.
As revealed later, it was initializatin problem.
Actually, he probably would have caught it sooner because I'm guessing it was something like this:
void CQMDlg::OnGetvarCountButton()
{
varCount = -1;
for(int i=0; i!=varCount; ++i)
{
intVec.push_back(i);
}
}
Which will run forever, whereas if the code was written as:
void CQMDlg::OnGetvarCountButton()
{
varCount = -1;
for(int i=0; i<varCount; ++i)
{
intVec.push_back(i);
}
}
It would have been caught immediately since the vector would have been empty.
As a side note, STL's iterators use != for a reason. For most of the containers, there is no guarantee that the memory locations are sequential, so you can't do a < comparison to find the end of the loop.
-- modified at 10:18 Thursday 21st September, 2006
If you decide to become a software engineer, you are signing up to have a 1/2" piece of silicon tell you exactly how stupid you really are for 8 hours a day, 5 days a week
Zac
|
|
|
|
|
Zac Howland wrote: for(int i=0; i!=varCount; ++i
True, I never come across such code,too.
|
|
|
|
|
Hello everyone,
I m trying to populate my Combobox but i m not successfull as yet.
as usuall I have enetred the data in properties DATA tab of ComboBox
I tryed with insertstring and additem method also but nothing is working.At runtime my ComboBox expands blankly it does not show any data
Thanx,
namy.
namy
|
|
|
|
|