SQL PLSQL Interview Questions
Questions Answers Views Company eMail

What is the difference between join and union.

3i Infotech, ABC, Oracle, Polaris, TCS, XT Global,

27 172741

What is the difference between anonymous block and named blocks?

3 9318

what is inline view?

15 37806

what is the difference between implicit conversions and explicit conversions?

2 8161

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 ?

Oracle,

7 12087

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 ?

Oracle,

3 7732

What is Referential Integrity?

3 6855

can we update a view which is created from two tables

11 30980

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.

Oracle,

9 13132

Can u create a primary key with out unique index.

8 12597

what are the demerits of sql?

1 4573

what is the difference between binary_integer and pls_integer

TCS,

2 31077

What action do you have to perform before retrieving data from the next result set of a stored procedure ?

Microsoft,

2078

What cursor type do you use to retrieve multiple recordsets?

Apollo, CTS, IonIdea, Microsoft, Oracle, TCS, Vmoksha, Wipro,

17 64604

Two Methods of retrieving SQL?

Atiric Software, Microsoft, Oracle, TCS, Wipro,

7 53847


Post New SQL PLSQL Questions

Un-Answered Questions { SQL PLSQL }

What is the difference between drop and truncate commands?

477


What are the rules to be applied to nulls whilst doing comparisons?

734


Is not equal in sql?

556


What are reports usually used for?

553


How many scalar data types are supported in pl/sql?

510






What is nested table in pl sql?

543


what are date and time intervals? : Sql dba

556


What is parameter substitution in sql?

513


what are the types of join and explain each? : Sql dba

521


what is primary key? : Sql dba

504


what is timestamp in mysql? : Sql dba

554


How do you create a db file?

510


How to add new employee details in an employee_details table with the following details

633


What is the most restrictive isolation level? : Transact sql

540


What is secondary key?

502