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

SQL PLSQL Interview Questions

Questions Answers Views Company eMail

Is primary key a clustered index?

944

How does a self join work?

1028

How do you explain an index number?

1052

Where is all the data on the internet stored?

960

Is left join faster than inner join?

1079

How do you know if a relationship is 2nf?

895

How do you delete data from a table?

990

How do I find duplicates in the same column?

1019

Can unique keys be null?

865

Does truncate need commit?

906

How do you create a unique index?

1002

How do I create an index in word?

981

Do we need commit after truncate?

1050

How many unique keys can a table have?

976

Does indexing improve query performance?

1 1195

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Un-Answered Questions { SQL PLSQL }

What is the life of an sql statement?

982

What is sql profiling in oracle?

1020

How subquery works in sql?

1018

How many primary keys can a table have?

967

Explain what is sql*plus?

1106

Which version of sql do I have?

1017

What is a variable in sql?

964

How to rename a table?

981

Is pl sql still used?

938

What is oracle and pl sql?

1096

What are different categories of sql commands?

1092

What are different clauses used in sql?

1089

Can you have a foreign key without a primary key?

917

Is sql similar to python?

933

How do you use join?

907

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