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Oracle SQL PLSQL Interview Questions

Questions Answers Views Company eMail

What is correlated sub-query?

7 42496

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

2 10620

What are the advantages of the packages

6 12124

what are the advantages of primary key over unique+notnull

7 22251

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

31 41676

what is the difference between union and union all

14 46460

What is the difference between join and union.

27 180385

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 14360

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 8923

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 15874

What cursor type do you use to retrieve multiple recordsets?

17 70660

Two Methods of retrieving SQL?

7 56608

How do you optimize SQL queries ?

6 35822

How well can multiple sessions access the same data simultaneously ?

1 3497

Delete duplicate records in the emp table.

6 14777

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Oracle SQL PLSQL Interview Questions

Oracle SQL PLSQL Interview Questions (40)

Un-Answered Questions

How do I upgrade wordpress safely?

164

Discuss the potential side effects and risks associated with Alprazolam usage. How would you manage or mitigate these side effects in a patient?

535

What is auto-response?

479

how to design a crankshaft?

2239

How do I compare two excel sheets to highlight duplicates?

619

Explain anaphylaxis?

434

What is tomcat animal?

810

Name some companies using QlikView?

How soap and rest will communicate? : salesforce integration

415

What are the different iis authentication modes in iis 5.0 and explain? Difference between basic and digest authentication modes?

1091

What does calloc stand for?

1153

Do you know what is double-entry accounting? Explain with an example?

1005

The screw thread commonly used for transmission of motion is one of the following types of threads

1133

What is the purpose of the main method?

984

Message is set to the property and the checked in the clipboard also , the messages got set successfully. But the message is not displayed beside the field in the screen. Why..?

556