-
How do you remove a column from table
shravanam
- Oct 25th, 2007
You can remove a column but first of all you should see that column doest have any values and it should not be a primary keyALTER TABLE DROP COLUMN
Mohammed Abdul Afroze
- Sep 27th, 2007
To drop a Column from a Table.The command is.Sql>Alter table drop column .
-
What is port? what is HTTP port, FTP port, Telnet port and others?
Sudhir
- Oct 21st, 2007
Definition:- 1) On computer and telecommunication devices, a port?is generally a specific place for being physically connected to some other device, usually with a socket and plug of some kind. Typic...
opbang
- Sep 25th, 2006
ports are like different gates of the building. Each gate is having its own function. HTTP Port .... it will allow only HTTP people... It communicates in HTTP protocol.. any request with http://...
-
How to count number of HTML pages in a website ?
ashalini
- Oct 17th, 2007
You can write a simple ASP program to run against the root directory of the website. Here are some links which can help you in that directionhttp://www.microsoft.com/technet/scriptcenter/resources/qanda/sept06/hey0907.mspx
-
-
-
-
How do you implement "Queue" functionality by using "2 Stacks"
Read Best Answer
Editorial / Best Answer
saradalincoln- Member Since Jun-2007 | Jul 17th, 2007
hi,
1. Take 2 empty stacks.
2. Fill the 1st stack with some items (eg: input 100, 101, 102, 103)
3. Now read the items from 1st stack in LIFO order and write to 2nd stack.
(By this the 2nd stack will get the items in the order .. 103, 102, 101, 100)
4. Now read the items from 2nd stack in LIFO order i.e. the output will be
100, 101, 102, 103.
(this is the queue order FIFO with respect to the actual items entered in 1st
stack.)
Thanks,
Sarada.saradalincoln
- Jul 17th, 2007
hi,1. Take 2 empty stacks.2. Fill the 1st stack with some items (eg: input 100, 101, 102, 103)3. Now read the items from 1st stack in LIFO order and write to 2nd stack. (By this the...
-
-
How chat server works,send me sample coding..
-
Give the complete difference between database, relational database and object database?
Read Best Answer
Editorial / Best Answer
Answered by: PKayanan
- May 14th, 2007
A database is an organized collection of information. It is structured so you can jump to the information by using a key, and find related infromation by navigating a path. A sequential (flat) file is not considered a database.
A relational database contains one-to-many relationships.
A networked database contains one-to-many and many-to-many relationships.
PKayanan
- May 14th, 2007
A database is an organized collection of information. It is structured so you can jump to the information by using a key, and find related infromation by navigating a path. A sequential (f...
srikanth
- Apr 14th, 2006
Collection of inter-related data is called as database.
A DATABASE WHICH SUPPORTS ALL TYPES OF RELATIONS(one-one,one-many,many-one,many-many)IS CALLED AS RELATIONAL DATABASE.
object database or object oriented database both r same.
object database=relational database+oops -
-
-
return 0;
}
You notice that I use 3[a] instead of a[3], however, this code works fine but I don't know how.
It will be grateful if someone explians to me why and how this code works fine.
Thanks.">Take this example:#include int main (){ int a [5]; a [3] = 1111; printf ("3[a] = %dn", 3[a]); return 0;}You notice that I use 3[a] instead of a[3], however, this code works fine but I don't know how.It will be grateful if someone explians to me why and how this code works fine.Thanks.
winny gupta
- Feb 15th, 2007
the above code works fine. This is so because when the program runs, an array is internally converted to a pointer notation,i.e., *(a + 3) for a[3]. The same notation,i.e. *(a+3) is achieved for 3...
mytest1
- Jan 30th, 2007
whenever u declare a array, the name of the array( i.e the array variable) is actually a pointer to the starting address of the memory area that was reserved for the array..for ex:int arr[10];here "ar...
-
What is the OSI Model?
Read Best Answer
Editorial / Best Answer
Answered by: Gurvinder Singh
- Dec 28th, 2006
OSI is Open System Interface Model. It is a concept which is used to make data transfer in steps. There are 7 layers and each layer interact with its counterpart. earlier a product made by any abc co was able to communicate with the same company product. to communicate with different co's products it was created. as it's name shows "OPEN System Interface"
SachinK
- Feb 8th, 2007
I think its Open System Interconection Model
Gurvinder Singh
- Dec 28th, 2006
OSI is Open System Interface Model. It is a concept which is used to make data transfer in steps. There are 7 layers and each layer interact with its counterpart. earlier a product made by any abc co ...
-
-
What are the differences between Desktop and Enterprise Application?
Read Best Answer
Editorial / Best Answer
Answered by: Harshit Mistry
- Feb 1st, 2007
Hi,Desktop application runs on a single machine. It could be a part of network. But Application and database resides on same machine. And only one user can access it at a time.Enterprise application is generally a multi-tier application. Many a concurrent users can access data and application at a time.
Harshit Mistry
- Feb 1st, 2007
Hi,Desktop application runs on a single machine. It could be a part of network. But Application and database resides on same machine. And only one user can access it at a time.Enterprise application i...
-
How can we check out the files from cvs?
madhur_agarwal
- Jan 11th, 2007
Put an exclusive lock on the file while checking out and say "commit selection" while checking in the file.
shranu
- May 15th, 2006
Go to the file which you have to check out.Right click and goto "Update" and update the file.Right click on the same file and goto explore.You will find all the files in that particular folder.Now you can copy/paste the required files anywhere in your machine.
-
-
Stack pointer
Can anyone give me complete information while performing this situation,A function is running, it has its own stack pointer, memory area now it invokes another function from this point what changes will be in it's memory area and what other changes in data segment, stack segment, heap segment. I want a complete picture of memory architecture?
Read Best Answer
Editorial / Best Answer
kalayama- Member Since Sep-2006 | Dec 8th, 2006
There will be a lot of changes in fact. First of all, all the variables the function was suing needs to be pushed into the stack. (we need all these variables when we return from the other function). The Program counter will be pushed to stack too... (When the "return" of second function occurs we should know where to 'return' to)These are the basics which are bound to happen when a function calls another.
kalayama
- Dec 8th, 2006
There will be a lot of changes in fact. First of all, all the variables the function was suing needs to be pushed into the stack. (we need all these variables when we return from the other function). ...
prasanth
- Nov 27th, 2006
hi, There will be no change in memory area .And all the major part will be taken by the stack pointer.It depends on the calling conventions like pascals...
-
How to write a class in c++ using only one object?
kalayama
- Dec 8th, 2006
Was that answer to the question.The question was "Writ a class using one object". Doesn't mean that the the class can have only one object ain't it?
priyadarshani
- Jun 22nd, 2006
Class singleten{ static int count; singleten() { if (count==1) { exit(0); } count++; }}singleten::count =0;void main(){singleten s1;singleten s2;}program is terminated as soon as second object is created.
Object-Orientation Concepts Interview Questions
Sub Category
Questions
Answers
Last Updated
Read Best Answer
Ans