SQL PLSQL Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

SQL PLSQL Interview Questions

Questions Answers Views Company eMail

Does normalization improve performance?

997

How can you tell the difference between an index and a view?

881

Do we need to create index on primary key?

875

How many columns should be in an index?

923

How is indexing done in search engines?

951

How many subqueries can be nested in a statement?

949

How many clustered indexes can you have?

940

How do you explain an index?

1237

How many types of normalization are there?

914

How do you write an index?

924

Is clustered index a primary key?

903

How do I delete a trigger?

931

How do you delete a table?

1019

How do I remove duplicates in two columns?

1002

How do I find duplicates in two columns?

1086

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Un-Answered Questions { SQL PLSQL }

What is an exception in pl/sql?

1023

Can 2 queries be executed simultaneously in a distributed database system?

1102

What is rank function in sql?

980

Which command is used to call a stored procedure?

969

What is scalar function?

1019

What is a constraint? Tell me about its various levels.

1101

How can you fetch common records from two tables?

1018

What types of commands can be executed in sql*plus?

1072

How to select all records from the table?

1087

How many developers work on postgresql?

928

What is example of database?

1005

What kind of join is join?

917

How do you create an update query?

927

What is character functions?

1032

what is the difference between cluster and non cluster index? : Sql dba

979

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