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Oracle SQL PLSQL Interview Questions

Questions Answers Views Company eMail

What is correlated sub-query?

7 42233

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

2 10513

What are the advantages of the packages

6 11892

what are the advantages of primary key over unique+notnull

7 22009

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

31 40679

what is the difference between union and union all

14 45888

What is the difference between join and union.

27 179628

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 14106

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 8776

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 15606

What cursor type do you use to retrieve multiple recordsets?

17 69954

Two Methods of retrieving SQL?

7 56347

How do you optimize SQL queries ?

6 35599

How well can multiple sessions access the same data simultaneously ?

1 3414

Delete duplicate records in the emp table.

6 14586

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Oracle SQL PLSQL Interview Questions

Oracle SQL PLSQL Interview Questions (40)

Un-Answered Questions

How to testing voids of filled aggregate in bitumen mix design

1856

Explain when to use ssl with tomcat?

825

You're in charge of implementing a stealth game similar to Thief: The Dark Project, and you need guards in your game that have imperfect vision and hearing and inhabit dimly-lit castles, and they can search the area for the player if they think there's an intruder around. How do you model the sensory systems of these guards, and how do you aggregate auditory, visual, and other kinds of stimuli in this system? How do you implement the various alert states for the guards, and why?

1519

What is the purpose of the package around a microprocessor silicon die?

937

how to create cubes in transformer ?

1006

What are the buffering types?

1084

How do you enable temporary and extended trace logging for websphere portal ?

806

How do I use server core?

956

What is the diameter of the 3"inch nails?

2012

How do I permanently stop runtime broker?

818

What is latest and stable version of Django ?

399

the configure that is worst effected by ?

1090

What do you understand by plan baselines?

871

Does aws ever fall?

128

What is underfitting?

294