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

how to get the rowid/rownumbes of a table in sqlserver

IBM,

7 19850

Do view contain data?

Ramco,

6 11821

select 1,col1,col2 from table1. output?

Ramco,

5 10717

What is integrity constraints?

Ramco, Satyam,

5 21237

use of IN/ANY/ALL

Ramco,

5 11391

how can u select the Distinct values in the table, table having 20 columns , i want all columns

2 7552

Can anyone give me information about oracle certification

1 4697

How to select Distinct columns from the table, table having 20 columns and i want all coulmns

Wipro,

5 11200

What is The Use Of TIMESTAMP DataType in SQL Server 2005?

6 21859

where the connection string store in the database

HCL, Wipro,

1 2138

what do u mean by canvases and alerts?

1 2075

how to give input dynamically to a insert statement in sqlserver

HCL,

3 8674

what is dba_segment

4 10347

I've got a database 10g and Form version 5.0 but unable to connect. Does Oracle 10g database supports form 4.5

jusco,

1 2603

1. What are the grouping function in SQL ? 2. If base table of a view deleted means, what will happen while we querying on view ? will give any error ? 3. Difference between DROP, DELETE, TRUNCATE table ? 4. What is constraints and types ? 5. What is max size of nchar & nvarchar ? 6. Define ROLLBACK, COMMIT, SAVE POINT 7. How non-clustered better ? or rank the Clustered, Non-Clustered and Table scan in performance wise 8. Select 10 rows from a table ? 9. Define DML, DDL, DCL, DTL commands ? 10. What is mean by NULL value ? NULL means "" or 0 or undefined ? 11. Default constraints ? 12. Can we have more then primary Key in table ? 13. Type of integrity ? Entity, Referential, Domain ?

Perot Systems,

10 19013

Un-Answered Questions { Databases }

Why should you use or avoid select * statements?

1108

What are wait types?

1247

what is dbms? : Sql dba

1061

How do I start sql server 2017?

1013

in oracle BPM composer in part BA model on design model in enterprise model i cannot connection with value chain model work not links in part properties do you can me help me?

1605

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?

1910

Can we make the the chages By Using the Sql if u know any function or process please inform me Actuall result: BRK1 Break 1 Part 1 00:01:00:00 60 BRK1 Break 1 Part 2 00:01:00:00 60 BRK2 Break 2 Part 1 00:01:00:00 60 BRK2 Break 2 Part 2 00:01:00:00 60 BRK2 Break 2 Part 3 00:01:00:00 60 BRK3 Break 3 Part 1 00:01:00:00 60 BRK3 Break 3 Part 2 00:01:00:00 60 Desired O/P: BRK1 Break 1 Part 1 00:01:00:00 60 Part 2 00:01:00:00 60 BRK2 Break 2 Part 1 00:01:00:00 60 Part 2 00:01:00:00 60 Part 3 00:01:00:00 60

2293

Have you used lexical parameters in reports?

what is collation? : Sql dba

1229

How to convert character strings into numeric values?

1187

How raid can influence database performance?

1115

Suppose database is running slow, what will you do?

2591

What is current version of mysql?

1073

Can we do dml on views?

1032

explain different types of backups avaialabe in sql server? Given a particular scenario, how would you go about choosing a backup plan? : Sql server database administration

1132

For More Un-Answered { Databases } Questions Click Here