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Oracle SQL PLSQL Interview Questions
Questions Answers Views Company eMail

What is correlated sub-query?

 7 42550

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

 2 10649

What are the advantages of the packages

 6 12169

what are the advantages of primary key over unique+notnull

 7 22316

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

 31 41875

what is the difference between union and union all

 14 46594

What is the difference between join and union.

 27 180639

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 14430

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 8942

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 15955

What cursor type do you use to retrieve multiple recordsets?

17 70823

Two Methods of retrieving SQL?

 7 56681

How do you optimize SQL queries ?

 6 35911

How well can multiple sessions access the same data simultaneously ?

 1 3524

Delete duplicate records in the emp table.

 6 14821

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Oracle SQL PLSQL Interview Questions


Un-Answered Questions

How to set fixed width in particular in html? if i type more character in this it will not push near . this is my question. can u tell me the answer...

2558

What are transactions?

236

Explain the service container and its advantages.

726

Give us two of your biggest strengths and weaknesses.

1134

What is sql*plus?

1084

What is the process of changing the split size if there is limited storage space on Commodity Hardware?

716

What is the advantage of using asp.net routing?

1108

Can java list contain duplicates?

1022

what is current check gurd relay?

2600

How do I debug a program in windows 10?

972

What is the sleeping time of python?

832

What is the difference between sonication and homozinization?

2369

How the endl and setw manipulator works?

1022

Why do we parse in c#?

895

What does mysql flush privileges do?

935