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Oracle SQL PLSQL Interview Questions
Questions Answers Views Company eMail

What is correlated sub-query?

 7 42266

how instead of triger is helpful for mutating tables errors handlling ?

 2 10522

What are the advantages of the packages

 6 11917

what are the advantages of primary key over unique+notnull

 7 22031

how to retrieve the top 3 salaries of the table using rownum

 31 40770

what is the difference between union and union all

 14 45945

What is the difference between join and union.

 27 179694

declare l1 number := null; l2 number :=null; begin if l1=l2 then message('equal'); else if l1<>l2 then message('not equal'); else message('else'); end if; end if; end; What will be the output ?

7 14134

declare lowerl number:= 1; upperl number:= 3; num varchar2(10); begin for i into lowerl..upperl loop num:=num||to_char(lowerl); if i=3 then upperl:=5; end loop; message(num); What will be the output ?

3 8791

Given two tables Student(SID, Name, Course) and Level(SID, level) write the SQL statement to get the name and SID of the student who are taking course = 3 and at freshman level.

 9 15634

What cursor type do you use to retrieve multiple recordsets?

17 70052

Two Methods of retrieving SQL?

 7 56366

How do you optimize SQL queries ?

 6 35615

How well can multiple sessions access the same data simultaneously ?

 1 3421

Delete duplicate records in the emp table.

 6 14603

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Oracle SQL PLSQL Interview Questions


Un-Answered Questions

Define groupings for the public holiday calendar?

1017

Why do you want to work for Microsoft?

3136

Explain difference between machine config vs. Web config? : .NET Architecture

915

where to do the user related (personal) settings?

572

How to load excel data sheet to oracle database

976

Differentiate database index and match code.

1091

What are various standard exceptions that salesforce throws?

452

What is mean tnq

1483

How many rows and columns are in a chess board?

1165

What are the most important things to learn in excel?

623

Which reactor has no moderator ?

1070

Use of an integrity constraint is better to validate data. Explain

986

How forward () method is different from send redirect () method?

923

How important is the spring bean configuration file?

525

Tell me what do you understand by a view? What does the with check option clause for a view do?

963