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?

968

How does a self join work?

1124

How do you explain an index number?

1108

Where is all the data on the internet stored?

1010

Is left join faster than inner join?

1123

How do you know if a relationship is 2nf?

944

How do you delete data from a table?

1039

How do I find duplicates in the same column?

1085

Can unique keys be null?

908

Does truncate need commit?

944

How do you create a unique index?

1046

How do I create an index in word?

1031

Do we need commit after truncate?

1079

How many unique keys can a table have?

1014

Does indexing improve query performance?

1 1257

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Un-Answered Questions { SQL PLSQL }

What is %rowtype in pl sql?

989

What is execution plan in sql?

1046

What are different types of statements supported by sql?

1165

What is data type in database?

992

How to prepare for oracle pl sql certification?

1064

Why triggers are used?

989

Why do you partition data?

1019

How to assign sql query results to pl sql variables?

1078

Why is stored procedure faster than query?

960

Is it possible to pass parameters to triggers?

1103

what is the different between now() and current_date()? : Sql dba

1022

Explain what is a column in a table?

1107

What is fmtonly in sql?

1085

What is the difference between sql and mysql?

1117

Why we use joins in sql?

982

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