Databases Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Oracle (3259)
SQL Server (4518)
MS Access (429)
MySQL (1402)

Postgre (483)
Sybase (267)
DB Architecture (141)
DB Administration (291)

DB Development (113)
SQL PLSQL (3330)
MongoDB (502)
IBM Informix (50)

Neo4j (82)
InfluxDB (0)
Apache CouchDB (44)
Firebird (5)

Database Management (1411)
Databases AllOther (288)

Databases Interview Questions

Questions Answers Views Company eMail

What is the use of indexing table?

2 6366

what is the difference between MyIsam and InnoDb engine?

2 6623

Hi all, I am going to write oracle certification. Can anyone send me the dumps available if any for OCA exam? Its really very urgent, prompt response will help me alot..

8 9279

What are the steps need to be take improve the speed of a SQLDATA Server?

IBM,

2 5230

What is sqlcode -923 ?

1 10430

candidate key is subset of super key but not vice-verse explain

2070

can u give guidance abt packages of plsql

Mphasis,

2176

what is the disadvantage of SQL Loder?

TCS,

1 6939

Write a stored procedure for emplpoyee and department table to get DeptName which having no employee. Table Structure- Emp-Emp_Id,Emp_Name,Dept_id Dept-Dept_Id,Dept_Name

TCS,

7 12127

"primary key=unique+null" is equal,reson?not,reason?

5 7290

How to define a cusotmer as a supplier in ORACLE R12

Intelligroup,

2232

WHAT IS THE DEFINITION OF DEFAULT CUSTOMER IN AR?

Intelligroup,

2209

what is difference between Enterprise Manager and Query Analyer

CTS,

6 9604

what is shared memory?

IBM,

1 4306

what is semphore explian it?

IBM,

2816

Un-Answered Questions { Databases }

What is the purpose of normalisation?

986

Compare mongodb and couchdb at high level?

What is ms sql server index?

1109

How do I export mysql query results to excel?

971

Is sql server 2016 free?

944

how many clustered indexes can be created on a table? : Sql server database administration

1156

What is the difference between dataadapter and datareader?

1008

What is the full form of dql?

985

How do you know if your mysql server is alive?

1075

What's the best database software for mac?

938

How many joins can you have in sql?

939

What are different sql data types?

1051

Explain the steps to create and execute a user-defined function in the sql server?

975

What is maximum size of table in postgresql?

869

What is global database name?

1006

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