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 primary key? : Sql dba

1028

what is isam? : Sql dba

1008

what are the type of locks ? : Sql dba

966

what is view? : Sql dba

959

what is a control file ? : Sql dba

1039

what is the difference between undefined value and null value? : Sql dba

1101

explain the difference between bool, tinyint and bit. : Sql dba

1000

how mysql optimizes distinct? : Sql dba

1079

how many ways we can we find the current date using mysql? : Sql dba

1099

what are local and global variables and their differences? : Sql dba

1070

how to enter numeric values as hex numbers? : Sql dba

1064

what is datawarehouse? : Sql dba

1016

what happens if null values are involved in expressions? : Sql dba

1045

how many ways to get the current time? : Sql dba

1007

how to enter binary numbers in sql statements? : Sql dba

972

Un-Answered Questions { Databases }

What is the use of count (*) in sql?

1053

How many concurrent programs you have customized, can you name some of them?

What type of dbms is mongodb?

What is the maximum size of a dimension? : sql server analysis services, ssas

1047

Which software is best for database?

883

In mysql, what is the default storage engine?

1006

What do you mean by cardinality?

903

What is an execution plan? When would you use it?

979

What are record groups ?

Why cross join is used?

1076

What is rownum in sql?

1043

What is an access?

811

What is system r? How many of its two major subsystems?

1014

What is sybase ?

920

List out the differences between the clustered index and non-clustered index in sql server?

1005

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