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

How does join work in sql?

1012

What is a primary key sql?

1046

What is trigger in pl sql with examples?

1048

What is row_number () in sql?

985

What is count * in sql?

1001

What are sql commands?

1017

What is varchar data type in sql?

1088

How do you sort in sql?

1030

What is foreign key in sql with example?

939

Is sql pronounced sequel or sql?

1273

How many joins in sql?

1015

What is the difference between sum and count in sql?

988

What is the advantage of index in sql?

972

What is schema in sql?

954

Why do we create views in sql?

1155

Un-Answered Questions { Databases }

how would you write a sql query to compute a frequency table of a certain attribute involving two joins? What changes would you need to make if you want to order by or group by some attribute? What would you do to account for nulls?

1633

What do you mean by acid?

1001

Why I can not enter 0.001 second in date and time literals in ms sql server?

1065

What is SQL Azure Federations?

112

where do u put the report file

2097

What do you understand by format trigger?

what is a foreign key ? : Sql dba

1087

How is data stored in mysql?

934

WHEN CURSOR MOVES FROM ONE FORM TO ANOTHER FORM, HOW MANY TRIGGER WILL BE FIRED AND WHAT ARE THEIR SEQUENCE?

2316

Explain about Joins?

997

What platforms are supported in couchdb?

Write down the differences between nosql and rdbms?

1012

Is mongodb still popular?

How do I edit a stored procedure in sql server?

928

what are the different functions in sorting an array? : Sql dba

1026

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