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

Oracle (3253)
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

Which is faster joins or subqueries?

1038

Is left join inner or outer by default?

1075

Is left join same as inner join?

1220

Can we join two tables without common column?

1063

Can we use joins in subquery?

1236

Which join is like inner join?

1092

What is the difference between an inner join and an outer join?

1086

Which join is like an inner join?

1095

Can we use join in subquery?

1154

What does joining a thread mean?

1079

What is difference between joins and union?

1200

Does inner join return duplicate rows?

1040

Is join same as left join?

1083

What is a natural join?

1143

What is full join?

1024

Un-Answered Questions { Databases }

Will there be journal replay programs in case of incomplete entries (if there is a failure in the middle of one)?

What are the different types of joins in sql?

1916

How do I delete a postgres database?

917

What are the tools of ms access?

842

Do you know sql server 2008 backup compression?

1007

What does it mean to be case sensitive?

1064

What is rank function in sql?

1073

What is MTTR advisor in Oracle?

1143

What is trigger and how to use it in sql?

1070

What is the native system stored procedure to execute a command against all databases?

1088

Explain how to maintain a fill factor in existing indexes?

1041

How to create a table index in mysql?

1017

What is insert query in mysql?

956

Can you lock more than one database at the same time in mongodb?

What do you mean by Checkbox ?

2504

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