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Oracle SQL PLSQL Interview Questions

Questions Answers Views Company eMail

What is correlated sub-query?

7 42265

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

2 10522

What are the advantages of the packages

6 11917

what are the advantages of primary key over unique+notnull

7 22031

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

31 40770

what is the difference between union and union all

14 45944

What is the difference between join and union.

27 179692

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 14133

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 8791

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 15633

What cursor type do you use to retrieve multiple recordsets?

17 70050

Two Methods of retrieving SQL?

7 56365

How do you optimize SQL queries ?

6 35615

How well can multiple sessions access the same data simultaneously ?

1 3421

Delete duplicate records in the emp table.

6 14603

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Oracle SQL PLSQL Interview Questions

Oracle SQL PLSQL Interview Questions (40)

Un-Answered Questions

What is return in java?

915

How can we delete a table in sql server?

929

What do you understand by j2ee?

907

When to use explode in Hive?

706

Explain what is Net Asset Value (NAV)?

991

Which method have you used in proxy?

1958

WHAT IS THE CRITERIA FOR SELECTION OF TIME OF DISSOLUTION AND THE MEDIUM OF DISSOLUTION?

2529

What is linqpad used for?

What is the meaning of busy spin in multi-threading?

958

what is difference between mail sendig in .net 1.1 and .net 2.0

2462

what types of testing have u done in ur project?and expalin it detail?

2004

If you push the numbers (in order) 1, 3, and 5 onto a stack, which pops out first a) 1 b) 5 c) 3

1327

Can you execute Hadoop dfs Commands from Hive CLI? How?

1110

What is equals method in java?

990

What are spring jdbc templates used for?

420