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Databases Interview Questions
Questions Answers Views Company eMail

how can a session indicate its interest in receiving alerts?

Oracle,

1009

how does an oracle clusterware manage crs resources?

Oracle,

1045

what are the performance views in an oracle rac environment?

Oracle,

1013

who owns the operating system files created by the utl_file package?

Oracle,

1034

how can you initialize log miner?

Oracle,

1096

What is the difference between online and offline backups?

MCN Solutions,

1000

what is the difference between restoring and recovering?

MCN Solutions,

976

What is Difference Between Unique and Primary Key Constraints?

Wipro,

1075

What is a Mapplet?

Informatica,

1080

What are the most common interview questions on ETL Testing for experience?

 1095

If you're given a raw data table, how would perform etl (extract, transform, load) with sql to obtain the data in a desired format?

Facebook,

937

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?

Facebook,

1596

how would you improve etl (extract, transform, load) throughput?

LinkedIn,

987

define and explain the differences between clustered and non-clustered indexes.

Microsoft,

1144

what are the different ways to return the rowcount of a table?

Microsoft,

971

Un-Answered Questions { Databases }

How does mysql store binary data?

911

What happens when converting big values to integers?

972

What is stored in a database?

926

How to display nth highest salary from a table in a mysql query?

949

What is the function of ms access?

865

What is the use of function "module procedure" in pl/sql?

1158

How do I start pgadmin 4 on windows?

832

Explain about the case statement present in stored procedure?

856

1. Difference between Lookup and join? 2. Difference between funnel and join? 3. What type of load you have used in your project? 4. What type of data warehouse schema you have fallowed in you project? 5. How many fact tables and dimension tables is their in project? 6. How do you kill the job process using windows environment? 7. Difference between sequence file and dataset? 8. What is delta load and subsequent load? 9. By using which stages you have implemented the SCD

1936

Mongodb uses bson to represent document structures. True or false?

5

What do you understand by ‘database’?

928

How to backup encryption key ?

174

Explain the use of tables option in exp command.

1076

Can we use max in where clause?

895

How do you call a stored procedure from jdbc?

912

For More Un-Answered { Databases } Questions Click Here