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

Why we use join in sql?

921

Which sql most popular?

945

How do I view a table in sql?

960

What is %s in sql?

980

What is cartesian join in sql?

1043

Is ms sql is free?

967

How many sql commands are there?

1073

How many joins can you have in sql?

887

What are inner outer left and right joins in sql?

971

Which certification is best for sql?

945

How does sql store data?

871

What is the purpose of a sql?

922

How much ram can sql express use?

939

How much does sql cost?

937

What is the purpose of my sql?

907

Un-Answered Questions { Databases }

How would you remodel an existing access database?

878

What is db journal file?

968

What do you mean by SQL injection attack?

1012

How do temporal tables work?

916

1. What is Container? 2. Tell me about your project? 3. Which container you are used in your project? 4. What is Surrogate key? 5. How you are implemented it? 6. Difference between Server job and Parallel job? 7. What is your Target Database? 8. What is Source System? 9. Difference between Join and Lookup? 10. Are you maintaining historical data? What is the logic used to maintained to historical data? 11. Do you have documents for mapping?

1694

Should I use pdo or mysqli?

854

What is oracle log switch?

569

Tell me what is the difference between locking and multi-versioning?

978

How view is different from a table?

976

How to set a database state to offline in ms sql server?

972

What is an example of a foreign key?

932

How to connect php with different port numbers?

1013

What is the difference between drop table and truncate table?

882

What are the different pseudo commands? Explain in general?

1028

Which nosql database is best?

935

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