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Oracle SQL PLSQL Interview Questions

Questions Answers Views Company eMail

What is correlated sub-query?

7 42276

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

2 10531

What are the advantages of the packages

6 11931

what are the advantages of primary key over unique+notnull

7 22047

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

31 40839

what is the difference between union and union all

14 45977

What is the difference between join and union.

27 179764

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 14163

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 8798

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 15663

What cursor type do you use to retrieve multiple recordsets?

17 70080

Two Methods of retrieving SQL?

7 56385

How do you optimize SQL queries ?

6 35632

How well can multiple sessions access the same data simultaneously ?

1 3429

Delete duplicate records in the emp table.

6 14619

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Oracle SQL PLSQL Interview Questions

Oracle SQL PLSQL Interview Questions (40)

Un-Answered Questions

what are all the common sql function? : Sql dba

1017

Which software is used for java?

862

When using mercury to recover very, fine gold from ore, define what is the best way to separate the gold laden mercury from the ore?

928

char *a[2]; int const *p; int *const p; struct new { int a;int b; *var[5] (struct new)} Describe the statements in the above given construct ?

3218

how do prepare ongc exam.how is it question model.i am electrical. which part covering in electrical.tell me

2220

How to Add Static Routes?

1654

How do I convert time to seconds in python?

765

How do I remove background in powerpoint 2010?

299

How to initialize a select box with options on page load in angular js?

819

Explain the multi user management levels and their respective role in the site!

165

What is the html tag for italicizing your text?

790

Explain operator and Explain types of operators in scala?

What is difference between Desktop, Client Server & Web based applications?

1001

what is the process for double acting cylinder pneumatic for 32' v/v

2023

What is the difference between Runout and Total Runoutvv

1747