In this blog I am not going to write a big epic on how to
crack interviews but just briefing on it in “write less, guess more, and
understand most” manner. So directly coming to the point from below paragraph
to save your time in reading essay(and offcourse mine too in writing )
I prefer categorizing
the questions with appropriate weightage as per the current requirement for a
resource. Generally I categories the things in 5 sections as –
[B] OOPS (relate it with C# or VB or language u use)
[C] .net related ( from basic to advance)
[D] AJAX and miscellaneous
related (using jQuery and JSON, Ajax/Script
manager/Update panel and SOAP , validations, plugins, jQuery selectors and
usage etc., Cross domain data posting, etc )
[E] Particular framework/ technology related like WCF, MVC
Starting with SQL section in “Top 10 interview questions
asked for .net developer position” series of blogs, we will see other section's questions in next
What kind of function can be written in SQL? How
a function is differ from Stored procedure?
What is trigger? Can you write the syntax for
Have you ever used Magic tables? What are they?
And where/how can be used?
What is the difference between Temp table and
Table variable?(a) Difference between local temp table and Gloabal temp table.
What is Identity column type? Can we reset the
value of column of this type? What will be the next value, (a) if we delete all
the records from this table and insert a fresh new record? (b) if we delete the
table (c) if we truncate the table
What is the difference between Joins and
Subqueries? Which one is better? Can you write the syntax for CROSS JOIN. (a) difference between Left join and Right
How many types of Indexes can be done inSQL?
What is the difference between them? Which one is the default type? Which one
is better to use? (a) Can we have a table without any type of Indexes? (b) can
you have a primary key on a table with non-clustered index?
What is the difference in Primary key constraint
and Unique key constraint? Is”Default” a constraint in SQL? (a) difference
between varchar datatype and char datatype.
When and How to use cursor with syntax.
How to do SQL query optimization?
be few questions related to syntaxes and queries like “write a query to get the
5th highest paying salary employee” etc. So be prepare about this.
Wherever differences is asked, try to give atleast 3
differences. For example if you say” table variable doesn't maitain the
transaction scope while temp table do” would be not enough to satisfy interviewer.