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SQL Interview Questions & Answers

Below we have listed all the SQL Interview Questions and answers. Feel free to comment on any SQL Interview Questions or answer by the comment feature available on the page.

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SQL Interview Questions & Answers

SQL (pronounced "ess-que-el") stands for Structured Query Language. SQL is used to communicate with a database. According to ANSI (American National Standards Institute), it is the standard language for relational database management systems. SQL consists of a data definition language, data manipulation language, and Data Control Language. The scope of SQL includes data insert, query, update and delete, schema creation and modification, and data access control. Although SQL is often described as, and to a great extent is, a declarative language (4GL), it also includes procedural elements.

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What is sql?
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What is outer join?Explain with examples.
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What is DML,DDL?
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How we get second highest salary in
database. Please show me this coding.
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How to analyze the performance of a query using Explain Plan? Can any one explain me this in detail... if you can provide me with a link where I can get full information on it I would appreciate it...?
0.2 Rating
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Explain the concept of joins and list out the different type of joins?
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What is the difference between varchar & varchar2?
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what is analyze command how to use ?
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How you define which session run and how long time ?
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How to save the output of a query/ stored procedure to a text file using T-SQL?
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How to get the first day of the week, last day of the week and last day of the month using T-SQL date functions?
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How to programmatically find out when the SQL Server service started?
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Write a Query to find unique names of authors who have written books. (Using Pubs database)?
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Write a Query to pull out the maximum unit price for each in the database. (Using Northwind database)
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Write a SQL statement to draw the second highest salary in Employee Table (Using Sub query)
Table structure is:
Employe ID
Name
Salary
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What is a default TCP/IP socket assigned for SQL Server?
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What is a default TCP/IP socket assigned for SQL Server?
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What’s the difference between a primary key and a unique key?
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How to retrieve the image from the database?
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How to find the second highest salary from employee table? and how to write it?
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Latest 20 Questions
Payment of time- barred debt is: (a) Valid (b) Void (c) Illegal (d) Voidable
Consideration is defined in the Indian Contract Act,1872 in: (a) Section 2(f) (b) Section 2(e) (c) Section 2(g) (d) Section 2(d)
Which of the following is not an exception to the rule, "No consideration, No contract": (a) Natural love and affection (b) Compensation for involuntary services (c) Completed gift (d) Agency
Consideration must move at the desire of: (a) The promisor (b) The promisee (c) The promisor or any other party (d) Both the promisor and the promisee
An offer which is open for acceptance over a period of time is: (a) Cross Offer (b) Counter Offer (c) Standing Offer (d) Implied Offer
Specific offer can be communicated to__________ (a) All the parties of contract (b) General public in universe (c) Specific person (d) None of the above
_________ amounts to rejection of the original offer. (a) Cross offer (b) Special offer (c) Standing offer (d) Counter offer
A advertises to sell his old car by advertising in a newspaper. This offer is caleed: (a) General Offer (b) Special Offer (c) Continuing Offer (d) None of the above
In case a counter offer is made, the original offer stands: (a) Rejected (b) Accepted automatically (c) Accepted subject to certain modifications and variations (d) None of the above
In case of unenforceable contract having some technical defect, parties (a) Can sue upon it (b) Cannot sue upon it (c) Should consider it to be illegal (d) None of the above
If entire specified goods is perished before entering into contract of sale, the contract is (a) Valid (b) Void (c) Voidable (d) Cancelled
______________ contracts are also caled contracts with executed consideration. (a) Unilateral (b) Completed (c) Bilateral (d) Executory
A offers B to supply books @ Rs 100 each but B accepts the same with condition of 10% discount. This is a case of (a) Counter Offer (b) Cross Offer (c) Specific Offer (d) General Offer
_____________ is a game of chance. (a) Conditional Contract (b) Contingent Contract (c) Wagering Contract (d) Quasi Contract
There is no binding contract in case of _______ as one's offer cannot be constructed as acceptance (a) Cross Offer (b) Standing Offer (c) Counter Offer (d) Special Offer
An offer is made with an intention to have negotiation from other party. This type of offer is: (a) Invitation to offer (b) Valid offer (c) Voidable (d) None of the above
When an offer is made to the world at large, it is ____________ offer. (a) Counter (b) Special (c) General (d) None of the above
Implied contract even if not in writing or express words is perfectly _______________ if all the conditions are satisfied:- (a) Void (b) Voidable (c) Valid (d) Illegal
A specific offer can be accepted by ___________. (a) Any person (b) Any friend to offeror (c) The person to whom it is made (d) Any friend of offeree
An agreement toput a fire on a person's car is a ______: (a) Legal (b) Voidable (c) Valid (d) Illegal


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