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

Is mysql same as mariadb?

1 963

What is the difference between sql and postgresql?

1 993

Is postgresql free to use?

1 855

What is the advantage of postgresql?

1 921

Is postgresql faster than mysql?

1 909

Is primary key indexed by default in postgres?

1 871

What is dual table in postgresql?

1 845

What is the default postgres database?

1 934

Why mysql is more popular than postgresql?

1 934

What is the default postgres user?

1 869

What is the default password for postgres windows?

1 945

What is postgresql jdbc driver?

1 988

Is postgresql distributed?

1 911

Is postgresql case sensitive?

1 861

Is postgresql better than sql server?

1 1009

Un-Answered Questions { Databases }

Can sql servers link to other servers like oracle?

910

what are the advantages of sql ? : Sql dba

1136

1. Tell me about your self? 2. Latest Project Introduction? 3. Difference between server jobs and parallel jobs? 4. Seq-Seq Explain its behavior and execution mode and which parallelism technique is used? 5. What is padding characters? 6. Seq-Seq, Seq-Copy-Seq which one is the best and efficient? 7. How many reject links do we have to a transformer? 8. How many reject links to join stage? 9. Difference between join and lookup? 10. How to design PX routine? 11. How can we call job in another job? 12. Difference between batch and sequencer? 13. Which Database is used? 14. What is change capture? Give briefing of that? 15. What is change Code? Explain? 16. How you call UNIX in Ds? 17. How do you call JCL in UNIX? 18. How do you pass the job status of one job to another job? Have designed any job sequencer? 19. How do you find a file in existed directory? 20. How can you call parallel jobs in transformer? 21. Execution of jobs in command line? 22. Tuning of sql queries? 23. What is orchestrating metadata? 24. What are junk dimension? 25. What are the third party tools you are used? 26. What are the system variables you have used? IBM 1. What is virtual dataset? 2. How do you handle reject link to a peek stage? 3. What is transaction table? 4. Which one is the efficient from the following? a. ODBC enterprise b. Oracle enterprise 5. How can you extract data from excel sheet? Do you know how to parameterize, this option? 6. Six pages of complex query I have, how do you simplify this query? 7. Difference between dataset and lookup file set?

1976

How to use values from other tables in update statements using oracle?

1147

Can we rollback truncate?

1072

What is in place upgrade in sql server?

1121

Why use identity in sql server?

1189

How to enter binary string literals in ms sql server?

1235

What versions of clipper does netlib support?

1084

What is your daily office routine?

2340

What is normalization and what are the advantages of it?

1052

what is the age limit for groups1 examination

2335

Can we do dml on views?

1031

How do I start sql server 2017?

1011

How to define array in mongoose schema?

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