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Oracle SQL PLSQL Interview Questions

Questions Answers Views Company eMail

What is correlated sub-query?

7 42735

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

2 10737

What are the advantages of the packages

6 12307

what are the advantages of primary key over unique+notnull

7 22491

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

31 42686

what is the difference between union and union all

14 47015

What is the difference between join and union.

27 181247

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 14586

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 9044

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 16132

What cursor type do you use to retrieve multiple recordsets?

17 71281

Two Methods of retrieving SQL?

7 56888

How do you optimize SQL queries ?

6 36100

How well can multiple sessions access the same data simultaneously ?

1 3601

Delete duplicate records in the emp table.

6 15009

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Oracle SQL PLSQL Interview Questions

Oracle SQL PLSQL Interview Questions (40)

Un-Answered Questions

What are the things to be considered while creating secondary index?

1140

What is the purpose of the biu in the 8086?

1099

sop of a uv visible spectrophotometer double beam elico model

5987

Actually by using severity you should know which one you need to solve so what is the need of priority?

1295

Explain how you can create a connection with lis info structures?

What is burnt-out point ?

1078

What are all the ‘technical types of bom’?

1219

how to calculate fuse rating for a motor

5720

The number of columns in a state table for a sequential circuit with m flip-flops and n inputs is

1443

Explain data driven framework?

1149

WHAT IS THE DIFFERENCE BETWEEN COST CONTRL & COST REDUCTION

2057

how we can know the funcions available in a class recording java?

2279

Can you share a specific case where you used lean techniques to reduce waste and increase value in a manufacturing process?

How many runtime brokers should be running?

872

what is the integration between marketing & ERP

3038