Databases Interview Questions
Questions Answers Views Company eMail

Is left join faster than join?

787

Does inner join remove duplicates?

716

Can we rollback after truncate?

797

Can we create a trigger on view?

698

Does truncate release storage space?

805

Are views faster than queries?

755

Can we perform dml on view?

757

How does a trigger work?

745

Can we insert delete data in view?

753

How does a covering index work?

710

Can we have two clustered index on a table?

782

How many types of primary keys are there?

751

Can we insert data into view?

703

How do you define a foreign key?

751

Can we join tables without foreign key?

720


Un-Answered Questions { Databases }

How many types of cursors supported in pl/sql?

841


What are the disadvantages of microsoft access?

613


What are a database and a data warehouse?

775


How do you delete a row in pgadmin 4?

592


What is sql and explain its components?

838


What is the significance of null value and why should we avoid permitting null values?

762


How we can do multi-join query in ms access?

615


What do you mean by flat file database?

660


How to make the project as .exe file in oracle forms & reports(d2k)?

1


How do I configure identities in sybase?

655


How to rebuild indexes with alter index ... Rebuild?

802


do you know how to configure db2 side of the application? : Sql server database administration

825


Mention the command used to rename the database.

768


what is text? : Sql dba

820


Does uninstalling mysql delete database?

723