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Oracle SQL PLSQL Interview Questions

Questions Answers Views Company eMail

What is correlated sub-query?

7 40995

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

2 10040

What are the advantages of the packages

6 11009

what are the advantages of primary key over unique+notnull

7 20971

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

31 37208

what is the difference between union and union all

14 43960

What is the difference between join and union.

27 176067

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 13084

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 8324

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 14452

What cursor type do you use to retrieve multiple recordsets?

17 67421

Two Methods of retrieving SQL?

7 55040

How do you optimize SQL queries ?

6 34423

How well can multiple sessions access the same data simultaneously ?

1 2995

Delete duplicate records in the emp table.

6 13752

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Oracle SQL PLSQL Interview Questions

Oracle SQL PLSQL Interview Questions (40)

Un-Answered Questions

What is the importance of setting up permission in app development?

696

Want to lear from basic about silktest and how to write scripts. Please let me know if you know any website

2859

What is unix operating system used for?

713

DESCRIBE WHY MANAGEMANT EDUCATION YOU WANT TO PURSUE???????/

2031

What is blob and clob?

694

What are guards in angular?

563

Explain debt service coverage ratio. What does it indicate?

804

How can I see where pipes are behind the wall?

825

what should be inferred by a variable named birthplace_str? : Adobe flash

649

Can we mass delete reports in salesforce?

278

How do I delete blank lines in word?

427

How can I read data from data files with particular formats?

810

Which is not a valid scale in d3 js?

explain the effects of alloying chromium and nickel in stainless steel.

807

What is the use of pyspark?