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Oracle SQL PLSQL Interview Questions

Questions Answers Views Company eMail

What is correlated sub-query?

7 42752

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

2 10739

What are the advantages of the packages

6 12316

what are the advantages of primary key over unique+notnull

7 22502

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

31 42730

what is the difference between union and union all

14 47037

What is the difference between join and union.

27 181287

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 14597

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 9047

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 16151

What cursor type do you use to retrieve multiple recordsets?

17 71322

Two Methods of retrieving SQL?

7 56892

How do you optimize SQL queries ?

6 36116

How well can multiple sessions access the same data simultaneously ?

1 3609

Delete duplicate records in the emp table.

6 15018

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Oracle SQL PLSQL Interview Questions

Oracle SQL PLSQL Interview Questions (40)

Un-Answered Questions

who was your inspiration behind becoming an engineer?

1216

What is an operations manager?

958

1.In a table Gender is a column in that male and female are the two data.In a single statement i have to modify all male to female and all female to male vice versa. 2.In a single query i need the count of male data,count of female and total count

17779

if I make the minimum participation size larger, will attachments stored in daos be moved back into the nsf?

Can a posting run be deleted? : sap abap hr

1113

what exactly sql injuction.how to overcome.....

2595

What causes crankcase explosion?

2030

Why is naïve bayes machine learning algorithm naïve?

154

if (i = 0)printf ("True"); elseprintf("False"); Under what conditions will the above print out the string "True" a) Never b) Always c) When the value of i is 0 d) all of the above

1204

What Time Neede to Upload Master Data and Trasaction Dat From Non SAP Systum to SAP Sys. through LSMW Tool ?

2190

Can I close my computer while updating?

1131

CAN V USE CRUSH SAND FOR CLAY BRICK MASONARY

1187

What is output of “20” + 20? In javascript?

996

what is event driven software and what is procedural driven software?

2620

What is your idea towards your own working style?

1282