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

SQL PLSQL Interview Questions

Questions Answers Views Company eMail

Can a foreign key be a duplicate?

903

Can a foreign key have a different name?

940

Can a key be both primary and foreign?

988

Can a primary key be a foreign key?

1016

Can a table have no primary key?

1051

Can a varchar be a primary key?

1005

Can primary key be changed?

903

Can there be 2 primary keys in a table?

993

Can we create foreign key without primary key?

977

Can we enter data in a table in design view?

965

Do foreign keys improve performance?

1018

Does a primary key have to be a number?

961

How do I turn a list into a table?

953

How do you create a db file?

1009

Is a foreign key always unique?

935

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Un-Answered Questions { SQL PLSQL }

How many triggers can be applied to a table?

1054

Differentiate between sga and pga.

1158

What is the difference between alter trigger and drop trigger statements?

1099

Why we use join in sql?

957

What does pragma mean?

1045

what are date and time intervals? : Sql dba

1053

What does select top 1 do in sql?

1084

Can we edit a view in sql?

976

What are sql queries used for?

1022

Is sql better than excel?

1139

How do I make my sql query run faster?

938

what are the types of subquery? : Sql dba

1098

Explain the difference between rename and alias?

1010

When you have to use a default "rollback to" savepoint of plvlog?

1183

Which one is faster ienumerable or iqueryable?

930

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