manoj pandey


{ City } new delhi
< Country > india
* Profession *
User No # 31069
Total Questions Posted # 12
Total Answers Posted # 28

Total Answers Posted for My Questions # 53
Total Views for My Questions # 140133

Users Marked my Answers as Correct # 94
Users Marked my Answers as Wrong # 21
Questions / { manoj pandey }
Questions Answers Category Views Company eMail

What is the diff. b/w Interfaces & Abstract class?

Ericsson,

6 Core Java 8993

Which of these methods belong to Thread & Object class? join, yield, sleep, wait, notify

Ericsson,

3 Core Java 9129

Can we instantiate Interfaces?

Ericsson,

7 Core Java 13840

What do you mean by the term transient?

Ericsson,

5 Core Java 9565

What are the two ways you can synchronize a block of code?

Ericsson,

5 Core Java 12627

A successfully created SSIS package in SQL Server 2005 runs fine in MS BIDS and Integration Services. But gives error when run through an SQL-Job. What are the possible reasons?

Sapient,

2 SQL Server 4777

Can we rollback records deleted by a truncate statement?

CarrizalSoft Technologies, United Healthcare,

3 SQL Server 7812

How many types of indexes are there in SQL Server?

CarrizalSoft Technologies, United Healthcare,

6 SQL Server 10709

How many types of TRIGGERS are there in MS SQL Server?

CarrizalSoft Technologies, TCS, United Healthcare,

8 SQL Server 29239

Difference between: - Delete & Truncate - Table & View - Constraints & Triggers

United Healthcare,

1 SQL Server 5118

Difference b/w Clustered & non-clustered index? Not the bookish definition, but how they internally works in SQL Server?

United Healthcare,

1 SQL Server 5151

Can we execute a stored procedure inside a trigger?

BirlaSoft, CarrizalSoft Technologies, United Healthcare,

6 SQL Server 23173



Answers / { manoj pandey }

Question { 26184 }

Difference between Dirty, commited ,phantom,repeatable
reads?


Answer

Check the following link for differences:
http://sqlwithmanoj.wordpress.com/2011/07/20/dirty-reads-and-phantom-reads/

Is This Answer Correct ?    4 Yes 1 No

Question { CTS, 19571 }

What is difference between TRUNCATE and DELETE statement


Answer

–> DELETE:

1. Removes Some or All rows from a table.
2. A WHERE clause can be used to remove some rows. If no WHERE condition is specified, all rows will be removed.
3. Causes all DELETE triggers on the table to fire.

–> TRUNCATE:

1. Removes All rows from a table.
2. Does not require a WHERE clause, so you can not filter rows while Truncating.
3. IDENTITY columns are re-seeded on this operation, if no seed was defined then the default value 1 is used.
4. No Triggers are fired on this operation because it does not operate on individual rows.

Check more differences b/w DELETE & TRUNCATE here: http://sqlwithmanoj.com/2009/02/22/difference-between-truncate-delete-and-drop-commands/

Is This Answer Correct ?    0 Yes 0 No


Question { CSC, 10036 }

What is the diff between Static Queries and Dynamic queries
give me some examples


Answer

Static Queries are permanent and cannot be changed during run-time, like: "SELECT * FROM Employees"

Dynamic Queries can be changed during run-time as they are created by using variables and these variables contain parts of SQL Query, like:

DECLARE @SQL VARCHAR(MAX)
DECLARE @WHENSQL VARCHAR(2000)
DECLARE @SEARCHSQL VARCHAR(500)

SELECT @WHENSQL = 'EmployeeID'
SELECT @SEARCHSQL = '100'

SELECT @SQL = 'SELECT * FROM Employees WHERE ' + @WHENSQL + ' = ' + @SEARCHSQL

EXEC (@SQL)
-- or
EXEC sp_executesql @SQL


For more interview Questions on SQL Server: http://sqlwithmanoj.wordpress.com/interview-questions/

Is This Answer Correct ?    1 Yes 0 No

Question { 10363 }

how to get 25th row in any table in sqlserver can u tell me
syntax


Answer

Check here how to get 2nd of nth highest record from a table: http://sqlwithmanoj.com/2014/01/05/sql-trivia-find-second-or-nth-highest-salary-or-marks/

Is This Answer Correct ?    0 Yes 0 No

Question { Emphasis, 5791 }

What are the new features in SQL Server 2005?


Answer

- CTE
- APPLY OPERATOR (CROSS, OUTER)
- OVER CLAUSE with PARTITION BY
- RANKING FUNCTIONS
- PIVOT & UNPIVOT
- Synonyms

Check here all new features in SQL Server 2005: http://sqlwithmanoj.com/category/sql-server-versions/sql-server-2005-sql-server-versions/

Is This Answer Correct ?    0 Yes 0 No

Question { 5111 }

i need some interview questions on sql server developer plz
any onee send some links.


Answer

Check my blog for more Interview Questions: http://sqlwithmanoj.wordpress.com/interview-questions/

Is This Answer Correct ?    0 Yes 0 No

Question { HCL, 8675 }

i have table students with fields classname,studname
select * from students
classname studname
1 xxxxx
1 yyyy
1 zzzz
2 qqqq
2 tttt
3 dsds
3 www
i want the output should be

No of students in class 1 : 3
No of students in class 2 : 2
No of students in class 3 : 2


Answer

select 'No of students in class ' + cast(classname as char(2)) + ' : ' + cast(count(*) as char(5)' from students group by classname


For more Interview Questions check my blog: http://sqlwithmanoj.wordpress.com/interview-questions/

Is This Answer Correct ?    0 Yes 0 No

Question { 8426 }

what is the difference between group and having
give an example with query and sample output


Answer

- GROUP BY clause works on the rows returned by a SELECT Query. This clause summaries identical rows into a single/distinct group and returns a single row with the summary for each group, by using appropriate Aggregate function in the SELECT list, like COUNT(), SUM(), MIN(), MAX(), AVG(), etc.

- HAVING clause works as a Filter on top of the Grouped rows returned by the Query containing the GROUP BY clause. This clause cannot be replaced by a WHERE clause and vice-versa.

Check the difference b/w GROUP BY & HAVING, link: http://sqlwithmanoj.com/2015/05/23/sql-basics-difference-between-where-group-by-and-having-clause/

Is This Answer Correct ?    0 Yes 0 No

Question { Geo Research Centre, 7386 }

what is the difference between Delete and Truncate


Answer

Check following blog post for Difference Delete vs Truncate: http://sqlwithmanoj.wordpress.com/2009/02/22/difference-between-truncate-delete-and-drop-commands/

Is This Answer Correct ?    0 Yes 0 No

Question { Accenture, 13630 }

Differences between functions and stored procedures?


Answer

Check following blog post for difference between UDF & Stored Procedures: http://sqlwithmanoj.wordpress.com/2011/09/21/stored-procedures-vs-functions-difference-between-sp-udf/

Is This Answer Correct ?    0 Yes 0 No

Question { 247Customer, 13743 }

Can we have more than one NULL in a column having unique
constraint?


Answer

No this is not possible... columns with Unique constraint
can only contain 1 null value/row.

@Manish... could you please try this:

create table #tempTable (id int, name varchar(50) unique)

insert into #tempTable
select 1, 'manoj' union
select 2, null union
select 3, null union
select 4, 'pandey'

Is This Answer Correct ?    1 Yes 0 No

Question { Ericsson, 9678 }

Package1 and Package2 both have a method name lets say
"methodA" with different implementation. When I import both
the packages in a java class how can I use both the methods?


Answer

// Do you want to say like this?

//import like this:

import Package1.classA
import Package2.classB

//use it in your class
class yourclass
{
classA.methodA(); // Package1 method call
classB.methodA(); // Package2 method call
}

Is This Answer Correct ?    27 Yes 3 No

Question { 7326 }

1.can we set the more than 1 primary keys for a table?
2.please give me the difference between Cluster Index and
non-Clustered Index
3.can we use query like this "Select * from Table1,Table2;"


Answer

1.There cannot be more than 1 Primary Keys for a given table?

2.Difference between Cluster Index and non-Clustered Index, check this link: http://sqlwithmanoj.com/2011/03/02/clustered-vs-nonclustered-indexes-and-data-sorting/

3.Yes, we use query like this "Select * from Table1, Table2;". This will give a Cross Join (or cartesian-product) results from both the tables.

Is This Answer Correct ?    0 Yes 0 No

Question { HCL, 9483 }

SELECT country,city
FROM customers
GROUP BY country
ORDER BY city DESC


Answer

This is wrong because there is no aggregate function in the
query when a group by clause is used.

The above query could be like:

1. SELECT country, count(city)
2. FROM customers
3. GROUP BY country
4. ORDER BY country DESC

* Correction at line 1 & 4.

Is This Answer Correct ?    12 Yes 9 No

Question { United Healthcare, 10709 }

How many types of indexes are there in SQL Server?


Answer

As per MSDN there are 9 types:
http://msdn.microsoft.com/en-us/library/ms175049.aspx

Is This Answer Correct ?    6 Yes 0 No

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