• Home
  • SQL Server
    • Articles
    • T-SQL Puzzles
    • Output Puzzles
    • Interview Questions
    • Performance Tuning
    • SQL SERVER On Linux
    • Resources
  • SSRS
    • SSRS Articles
    • Interview Questions
  • SSAS
    • SSAS Articles
    • DAX
  • SQL Puzzles
  • Interview Questions
    • SQL Interview Questions
    • Data Interview Questions
  • Python Interview Puzzles
  • New Features(SQL SERVER)
    • SQL SERVER 2017
    • SQL SERVER 2016
    • SQL SERVER On Linux
  • Social
    • Expert Exchange
      • Top Expert in SQL
      • Yearly Award
      • Certifications
      • Achievement List
      • Top Expert of the Week
    • HackerRank (SQL)
    • StackOverflow
    • About Me
      • Contact Me
      • Blog Rules

Improving my SQL BI Skills

Improving my SQL BI Skills

Daily Archives: September 12, 2010

Class — Definition and Small Explaination

12 Sunday Sep 2010

Posted by Pawan Kumar Khowal in OOPS

≈ Leave a comment


I have been interviewed by many people in my life. Interviewers often go with simple root level questions like what is an object.
Many candidates often get confused with simple questions ! One more is given below

Class — Definition and Small Explaination

1.A class definition is like a blueprint that specifies what the type can do.

2.A class is a set of objects having similar state and behaviour.

3.Memory is not allocated for classes but objects of that class.

4.Class represents abstraction.

5.A single object is simply an instance of a class.

6.Objects that share no common structure and behaviour cannot be grouped together in a class.

7.A class is a template from which we can create objects objects.

—————

Pawan Kumar

Pawankkmr@hotmail.com

Share this

  • LinkedIn
  • Facebook
  • Twitter
  • WhatsApp
  • Email

Object — Definition and Small Explaination

12 Sunday Sep 2010

Posted by Pawan Kumar Khowal in OOPS

≈ Leave a comment


I have been interviewed by many people in my life. Interviewers often go with simple root level questions like what is an object.
Many candidates often get confused with simple questions ! One of them is given below..

Object — Definition and Small Explaination

1. Object is a concrete entity that exists in time and space.

2. An object has 3 things.

a) State
b) Behaviour
c) Identity

3. The state and behaviour of similar objects are defined in their common class.

4. The words Instance and objects are interchangeable.

5. State of an object consists of properties i.e member variables with their dynamic values.

6. Behaviour means how an object reacts and acts when state changes and message passing. Behaviour means functions or methods defined in a class.

7. Identity is the property of an object which distinguishes it from all other objects.

8.A class or struct definition is like a blueprint that specifies what the type can do.

9. An object is basically a block of memory that has been allocated and configured according to the blueprint. A program may create many objects of the same class.

10.Objects are also called instances, and they can be stored in either a named variable or in an array or collection. Client code is the code that uses these variables to call the methods and access the public properties of the object.

11.In an object-oriented language such as C#, a typical program consists of multiple objects interacting dynamically.

12. Please go through the example given taken from MSDN.

// keyword_object.cs
using System;
class SampleClass
{
public int i = 10;
}

class MainClass
{
static void Main()
{
object a;
a = 1; // an example of boxing
Console.WriteLine(a);
Console.WriteLine(a.GetType());
Console.WriteLine(a.ToString());

a = new SampleClass();
SampleClass classRef;
classRef = (SampleClass)a;
Console.WriteLine(classRef.i);
}
}

Output
1
System.Int32
1
10

—————

Pawan Kumar

Pawankkmr@hotmail.com

Share this

  • LinkedIn
  • Facebook
  • Twitter
  • WhatsApp
  • Email

How to add events to a dynamically created Div’s in JavaScript ?

12 Sunday Sep 2010

Posted by Pawan Kumar Khowal in C#

≈ Leave a comment


How to add events to a dynamically created Div’s in JavaScript ?

Use the following JavaScript code

// If you are using Internet Explorer as your browser

divId.attachEvent(‘onclick’, clickEvent);
divId.attachEvent(‘onmousemove’, mousemoveEvent);

Note : divId would be Id of the dynamically added Div.

function clickEvent()
{
alert(“i am in click”);
}

function mousemoveEvent()
{
alert(“i am in mousemove”);
}

Enjoy…..

Saurabh D / Pawan Kumar
Pawankkmr@hotmail.com

20.000000 77.000000

Share this

  • LinkedIn
  • Facebook
  • Twitter
  • WhatsApp
  • Email

@@FETCH_STATUS in SQL Server

12 Sunday Sep 2010

Posted by Pawan Kumar Khowal in SQL Concepts

≈ 4 Comments


@@FETCH_STATUS in SQL Server

It returns the status of the last cursor FETCH statement issued against any cursor currently opened by the connection.

FETCH can return following three values

a) 0 if the the FETCH statement was successfully find the next row.

b) -1 if the FETCH statement failed or the row was beyond the result set.

c) -2 if the row fetched is missing. It can happen if some has deleted the row after opening the cursor.

After a FETCH statement is executed, the test for @@FETCH_STATUS must occur before any other FETCH statement is executed against another cursor.

To retrieve the last fetch status of a specific cursor, query the fetch_status column of the sys.dm_exec_cursors dynamic management function.

Pawan Kumar

Pawankkmr@hotmail.com

Share this

  • LinkedIn
  • Facebook
  • Twitter
  • WhatsApp
  • Email

Collation in SQL SERVER

12 Sunday Sep 2010

Posted by Pawan Kumar Khowal in SQL Concepts

≈ 1 Comment


Collation in SQL SERVER

It is a set of rules that determine how data is sorted and compared in SQL Server.

Character data is sorted using rules that define the correct character sequence, with options for specifying case-sensitivity, accent marks, kana character types and character width.

Case sensitivity

If A and a, B and b, etc. are treated in the same way then it is case-insensitive. A computer treats A and a differently because it uses ASCII code to differentiate the input. The ASCII value of A is 65, while a is 97. The ASCII value of B is 66 and b is 98.

Accent sensitivity

If a and á, o and ó are treated in the same way, then it is accent-insensitive. A computer treats a and á differently because it uses ASCII code for differentiating the input. The ASCII value of a is 97 and áis 225. The ASCII value of o is 111 and ó is 243.

Kana Sensitivity

When Japanese kana characters Hiragana and Katakana are treated differently, it is called Kana sensitive.

Width sensitivity

When a single-byte character (half-width) and the same character when represented as a double-byte character (full-width) are treated differently then it is width sensitive.

Keep Learning

Share this

  • LinkedIn
  • Facebook
  • Twitter
  • WhatsApp
  • Email
← Older posts

Blog Stats

  • 1,074,800 hits

Enter your email address to follow this blog and receive notifications of new posts by email.

Join 1,131 other subscribers

Pawan Khowal

502 SQL Puzzles with answers

Achievement - 500 PuzzlesJuly 18, 2018
The big day is here. Finally presented 500+ puzzles for SQL community.

200 SQL Server Puzzle with Answers

The Big DayAugust 19, 2016
The big day is here. Completed 200 SQL Puzzles today

Archives

September 2010
M T W T F S S
 12345
6789101112
13141516171819
20212223242526
27282930  
« Aug   Jul »

Top Articles

  • pawankkmr.wordpress.com/2…
  • pawankkmr.wordpress.com/2…
  • pawankkmr.wordpress.com/2…
  • pawankkmr.wordpress.com/2…
  • pawankkmr.wordpress.com/2…

Archives

  • October 2020 (29)
  • September 2018 (2)
  • August 2018 (6)
  • July 2018 (25)
  • June 2018 (22)
  • May 2018 (24)
  • April 2018 (33)
  • March 2018 (35)
  • February 2018 (53)
  • January 2018 (48)
  • December 2017 (32)
  • November 2017 (2)
  • October 2017 (20)
  • August 2017 (8)
  • June 2017 (2)
  • March 2017 (1)
  • February 2017 (18)
  • January 2017 (2)
  • December 2016 (5)
  • November 2016 (23)
  • October 2016 (2)
  • September 2016 (14)
  • August 2016 (6)
  • July 2016 (22)
  • June 2016 (27)
  • May 2016 (15)
  • April 2016 (7)
  • March 2016 (5)
  • February 2016 (7)
  • December 2015 (4)
  • October 2015 (23)
  • September 2015 (31)
  • August 2015 (14)
  • July 2015 (16)
  • June 2015 (29)
  • May 2015 (25)
  • April 2015 (44)
  • March 2015 (47)
  • November 2012 (1)
  • July 2012 (8)
  • September 2010 (26)
  • August 2010 (125)
  • July 2010 (2)

Article Categories

  • Analysis Services (6)
    • DAX (6)
  • Data (2)
    • Data warehousing (2)
  • Integration Services (2)
  • Magazines (3)
  • Python (29)
  • Reporting Services (4)
  • SQL SERVER (820)
    • Download SQL Interview Q's (212)
    • SQL Concepts (323)
    • SQL Performance Tuning (155)
    • SQL Puzzles (331)
    • SQL SERVER 2017 Linux (6)
    • SQL Server Interview Questions (308)
    • SQL SERVER Puzzles (332)
    • T SQL Puzzles (547)
    • Tricky SQL Queries (439)
  • UI (30)
    • ASP.NET (5)
    • C# (13)
    • CSS (9)
    • OOPS (3)
  • Uncategorized (5)

Recent Posts

  • Python | The Print and Divide Puzzle October 30, 2020
  • Python | Count consecutive 1’s from a list of 0’s and 1’s October 30, 2020
  • Python | How to convert a number into a list of its digits October 26, 2020
  • Python | Validate an IP Address-IPV6(Internet Protocol version 6) October 26, 2020
  • Python | Print the first non-recurring element in a list October 26, 2020
  • Python | Print the most recurring element in a list October 26, 2020
  • Python | Find the cumulative sum of elements in a list October 26, 2020
  • Python | Check a character is present in a string or not October 26, 2020
  • Python | Check whether a string is palindrome or not October 26, 2020
  • Python | Find the missing number in the array of Ints October 26, 2020
  • Python | How would you delete duplicates in a list October 26, 2020
  • Python | Check whether an array is Monotonic or not October 26, 2020
  • Python | Check whether a number is prime or not October 26, 2020
  • Python | Print list of prime numbers up to a number October 26, 2020
  • Python | Print elements from odd positions in a list October 26, 2020
  • Python | Print positions of a string present in another string October 26, 2020
  • Python | How to sort an array in ascending order October 26, 2020
  • Python | How to reverse an array October 26, 2020
  • Python | Find un-common words from two strings October 26, 2020
  • Python | How to convert a string to a list October 26, 2020
  • Python | Find unique words from a string October 26, 2020
  • Python | Calculate average word length from a string October 26, 2020
  • Python | Find common words from two strings October 26, 2020
  • Python | Find the number of times a substring present in a string October 26, 2020
  • Python | Find maximum value from a list October 26, 2020
  • Python | How to find GCF of two numbers October 26, 2020
  • Python | How to find LCM of two numbers October 26, 2020
  • Python | How to convert a list to a string October 26, 2020
  • Python | Replace NONE by its previous NON None value October 26, 2020
  • Microsoft SQL Server 2019 | Features added to SQL Server on Linux September 26, 2018

Create a website or blog at WordPress.com

  • Follow Following
    • Improving my SQL BI Skills
    • Join 231 other followers
    • Already have a WordPress.com account? Log in now.
    • Improving my SQL BI Skills
    • Customize
    • Follow Following
    • Sign up
    • Log in
    • Report this content
    • View site in Reader
    • Manage subscriptions
    • Collapse this bar