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Oracle SQL PLSQL Interview Questions

Questions Answers Views Company eMail

What is correlated sub-query?

7 42273

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

2 10523

What are the advantages of the packages

6 11921

what are the advantages of primary key over unique+notnull

7 22032

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

31 40782

what is the difference between union and union all

14 45959

What is the difference between join and union.

27 179707

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 14146

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 8794

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 15643

What cursor type do you use to retrieve multiple recordsets?

17 70068

Two Methods of retrieving SQL?

7 56377

How do you optimize SQL queries ?

6 35624

How well can multiple sessions access the same data simultaneously ?

1 3422

Delete duplicate records in the emp table.

6 14607

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Oracle SQL PLSQL Interview Questions

Oracle SQL PLSQL Interview Questions (40)

Un-Answered Questions

how to connect to a flatfile through ftp in informatica

14203

What is blank?

1121

Define the term immutable ?

1015

Explain about the future of struts?

897

What are the Quantifiers in LINQ?

124

What are the 4 areas of the box model?

524

What do you mean by *args and **kwargs?

837

What are the difference between of the “HDFS Block” and “Input Split”?

What is the use of orm in java?

330

What clinical lab audit is and what are the areas you can do clinical audit?

1153

How failures in execution are handled with include() and require() functions?

985

What is the maximum number of cards that can be passed to the map?

770

Where is the windows update cache folder?

926

Is it possible to restrict the scope of a field/method of a class to the classes in the same namespace?

953

What is orm principle?

351