A To Z Exams

___________ defines rules regarding the values allowed in columns and is the standard mechanism for enforcing database integrity.

Column

Constraint

Index

Trigger

A database trigger doesnot apply to data loaded before the definition of the trigger

true

false

Is it possible to Enable or Disable a Database trigger ?

Yes

Is it possible to modify a Datatype of a column when column contains data ?

Yes

ENQUEUE resources parameter information is derived from

Processes or DDL_LOCKS and DML_LOCKS

LOG_BUFFER

DB__BLOCK_SIZE

Which of the following is not correct about a View ?

To protect some of the columns of a table from other users

Ocuupies data storage space

To hide complexity of a query

To hide complexity of a calculations

A type of query that is placed within a WHERE or HAVING clause of another query is called

Master query

Sub query

Super query

Multi-query

Which of the following is TRUE for the SYSTEM VARIABLE $$date$$

Can be assigned to a global variable

Can be assigned to any field only during design time

Can be assigned to any variable or field during run time

None of the above

Is it possible to Disable the Parameter form while running the report?

Yes

What is the full form of SQL?

Structured Query Language

Structured Query List

Simple Query Language

None of the Mentioned

Which of the following is not an reason for the fact that most of the processing is done at the server ?

To reduce network traffic.

For application sharing

To implement business rules centrally

None of the above

If the maximum records retrieved property of a query is set to 10, then a summary value will be calculated

Only for 10 records

For all the records retrieved

For all therecords in the referenced table

None of the above

Which is not part of the Data Definiton Language ?

CREATE

ALTER

ALTER SESSION

A transaction completes its execution is said to be

Committed

Aborted

Rolled back

Failed

SYSTEM.EFFECTIVE.DATE varaible is

Read only

Read & Write

Write only

None of the above

SHOW_ALERT function returns

Boolean

Number

Character

None of the above

Which command allows the removal of all rows from a table but flushes a table more efficiently since no rollback information is retained:

TRUNCATE command

Create command

Drop table command

Alter table command

The User can set Archive file name formats

TRUE

FALSE

The three language components of a database management system (DBMS) like DDL, DCL, DML. Two different types of people (users and practitioners) are concerned with them. Which of them do users of a DBMS usually deal with?

DDL

DML

DDL and DCL

DCL and DML

What is a RADIO GROUP ?

Mutually exclusive

Select more than one column

Above all TRUE

Above all FALSE

Which of the following is not correct about the |TABLE| datatype ?

Can contain any no of columns

Simulates a One-dimensional array of unlimited size

Column datatype of any Scalar type

None of the above

What file is read by ODBC to load drivers ?

ODBC.INI

ODBC.DLL

ODBCDRV.INI

None of the above

The system variable that records the select statement that SQL * FORMS most recently used to populate a block is __________

SYSTEM.LAST_RECORD

SYSTEM.CURSOR_RECORD

SYSTEM.CURSOR_FIELD

SYSTEM.LAST_QUERY

Constraints cannot be exported through Export command?

true

false

List of Values (LOV) supports

Single column

Multi column

Single or Multi column

None of the above

What is a trigger

A piece of logic written in PL/SQL

Executed at the arrival of a SQL*FORMS event

Both A & B

None of the above

It is very difficult to grant and manage common privileges needed by different groups of database users using the roles

true

false

TCL stands for

Transaction control languages

Transaction command languages

Transaction connect languages

None of the Mentioned

LGWR process writes information into

Database files

Control files

Redolog files

All the above

_________commands in SQL allow controlling access to data within database.

Database

Data

Data control

All of the Mentioned

Why is it better to use an INTEGRITY CONSTRAINT to validate data in a table than to use a STORED PROCEDURE ?

Because an integrity constraint is automatically checked while data is inserted into or updated in a table while a stored procedure has to be specifically invoked

Because the stored procedure occupies more space in the database than a integrity constraint definition

Because a stored procedure creates more network traffic than a integrity constraint definition

What does a COMMIT statement do to a CURSOR

Open the Cursor

Fetch the Cursor

Close the Cursor

None of the above

A Database Language Concerned With The Definition Of The Whole Database Structure And Schema Is ________

DCL

DML

DDL

All of the Mentioned

Can we attach the same LOV to different fields in Design time ?

Yes

Transactions per rollback segment is derived from

Db_Block_Buffers

Processes

Shared_Pool_Size

None of the above

Which of the SQL statements is correct?

select fname and lname from users

select fname,lname from users

select fname,lname where fname = 'sam'

None of the Mentioned

A command that lets you change one or more fields in a record is

Insert

Modify

Look-up

All of the Mentioned

With which function of a summary item in the COMPUTE AT optio required ?

Sum

Standard deviation

Variance

% of Total function

Multiple Tablespaces can share a single datafile

true

false

SNAPSHOT is used for

Synonym

Table space

System server

Dynamic data replication

SMON process is used to write into LOG files

true

false

The status of the Rollback segment can be viewed through

DBA_SEGMENTS

DBA_ROLES

DBA_FREE_SPACES

DBA_ROLLBACK_SEG

Which of the following does not affect the size of the SGA

Database buffer

Redolog buffer

Stored procedure

Shared pool

Datadictionary can span across multiple Tablespaces

TRUE

FALSE

What are the different events in Triggers ?

Define, Create

Drop, Comment

Insert, Update, Delete

All of the above

Sequence of events takes place while starting a Database is

Database opened, File mounted, Instance started

Instance started, Database mounted & Database opened

Database opened, Instance started & file mounted

Files mounted, Instance started & Database opened

What does DLL stand for ?

Dynamic Link Library

Dynamic Language Library

Dynamic Load Library

None of the Mentioned

The packaged procedure that makes data in form permanent in the Database is

Post

Post form

Commit form

None of the above

Which command defines its columns, integrity constraint in create table:

Create command

Drop table command

Alter table command

All of the Mentioned

DCL stands for

Data Control Language

Data Console Language

Data Console Level

Data Control Level

Can we pass RECORD GROUP between FORMS ?

Yes

When a form is invoked with CALL_FORM does Oracle forms issues SAVEPOINT ?

Yes

Can we use a RESTRICTED packaged procedure in WHEN_TEXT_ITEM trigger ?

Yes

Identify the Odd one of the following statements ?

Poplist

Tlist

List of values

Combo box

Which of the following is TRUE for the ENFORCE KEY field a. ENFORCE KEY field characterstic indicates the source of the value that SQL*FORMS uses to populate the field b. A field with the ENFORCE KEY characterstic should have the INPUT ALLOWED charaterstic turned off

Only 1 is TRUE

Only 2 is TRUE

Both 1 and 2 are TRUE

Both 1 and 2 are FALSE

These following parameters are optional in init.ora parameter file DB_BLOCK_SIZE, PROCESSES

true

false

Which of the following is TRUE. 1 Host variables are declared anywhere in the program 2 Host variables are declared in the DECLARE section

Only 1 is TRUE

Only 2 is TRUE

Both 1 & 2are TRUE

Both are FALSE

In SQL, which command is used to SELECT only one copy of each set of duplicable rows

SELECT DISTINCT

SELECT UNIQUE

SELECT DIFFERENT

All of the Mentioned

The Database Language That Allows You To Access Or Maintain Data In A Database

DCL

DML

DDL

All of the Mentioned

A column defined as PRIMARY KEY can have NULL's?

true

false

A FORM is madeup of which of the following objects

block, fields only.

blocks, fields, pages only.

blocks, fields, pages, triggers and form level procedures.

Only blocks.

Which of the following keyword is used with Data Control Language (DCL) statements?

SELECT

INSERT

DELETE

GRANT

If two groups are not linked in the data model editor, what is the hierarchy between them?

There is no hierarchy between unlinked groups

The group that is right ranks higher than the group that is to theleft

The group that is above or leftmost ranks higher than the group that is to right or below it

None of the above

Find the ODD one out of the following

OPEN

INSERT

FETCH

What SYSTEM VARIABLE is used to refer DATABASE TIME ?

$$dbtime$$

$$time$$

$$datetime$$

None of the above

A Database Procedure is stored in the Database

In compiled form

As source code

Both A & B

Not stored

What is SQL * FORMS ?

SQL * FORMS is a 4GL tool for developing and executing Oracle based interactive based application

SQL * FORMS is a 3GL tool for connecting to a Database

SQL * FORMS is a reporting tool

None of the Mentioned

A Transaction ends

Only when it is Committed

Only when it is Rolledback

When it is Committed or Rolledback

None of the above

Which of the following is not correct about User_Defined Exceptions ?

Must be declared

Must be raised explicitly

Raised automatically in response to an Oracle error

None of the above

Which of the following is TRUE for a ERASE packaged procedure 1 ERASE removes an indicated Global variable & releases the memory associated with it 2 ERASE is used to remove a field from a page

Only 1 is TRUE

Only 2 is TRUE

Both 1 & 2 are TRUE

Both 1 & 2 are FALSE

What are the types of Calculated columns available ?

Summary, Place holder & Procedure column

Summary, Procedure & Formula columns

Procedure, Formula & Place holder columns

Summary, Formula & Place holder columns

Find the temperature in increasing order of all cities

SELECT city FROM weather ORDER BY temperature

SELECT city, temperature FROM weather

SELECT city, temperature FROM weather ORDER BY temperature

SELECT city, temperature FROM weather ORDER BY city

Identify the RESTRICTED packaged procedure from the following

USER_EXIT

MESSAGE

BREAK

EXIT_FORM

SET TRANSACTION USE ROLLBACK SEGMENT is used to create user objects in a particular Tablespace

true

false

What are the SQL clauses supported in the link property sheet ?

WHERE & START WITH

WHERE & HAVING

START WITH & HAVING

WHERE, START WITH & HAVING

When do you get a .PLL extension ?

Save Library file

Generate Library file

Run Library file

None of the above

What is the maximum size of the page ?

Characters wide & 265 characters length

Characters wide & 80 characters length

None of the above

It is very difficult to grant and manage common priveleges needed by different groups of database users using roles.

TRUE

FALSE

Databases overall structure is maintained in a file called

Redolog file

Data file

Control file

All of the above

What is the appropriate destination type to send the output to a printer ?

Screen

Previewer

Either of the above

None of the above

A set of Dictionary tables are created

Once for the Entire Database

Every time a user is created

Every time a Tablespace is created

None of the above

Which of the following is illegal?

SELECT SYSDATE – SYSDATE FROM DUAL;

SELECT SYSDATE – (SYSDATE – 2) FROM DUAL;

SELECT SYSDATE – (SYSDATE + 2) FROM DUAL;

None of the Mentioned

Which of the following is not correct about Cursor ?

Cursor is a named Private SQL area

Cursor holds temporary results

Cursor is used for retrieving multiple rows

SQL uses implicit Cursors to retrieve rows

DCL Provides Commands To Perform Actions Like _____________

Change The Structure Of Tables

Insert, Update Or Delete Records And Data Values

Authorizing Access And Other Control Over Database

None of the Mentioned

A CONTROL BLOCK can sometimes refer to a BASETABLE ?

true

false

Stack is also called __________

First In First Out

Last In First Out

First In Last Out

First Come First Served

In SQL, which command is used to add new rows to a table?

Alter Table

Add row

Insert

Append

What is built_in Subprogram ?

Stored procedure & Function

Collection of Subprogram

Collection of Packages

None of the above

Which of the following is not a type of SQL statement?

Data Manipulation Language (DML)

Data Definition Language (DDL)

Data Control Language (DCL)

Data Communication Language (DCL)

Is it possible to open a cursor which is in a Package in another procedure ?

Yes

TRUNCATE statement in SQL is a

DML statement

DDL statement

DCL statement

TCL statement

Size of Tablespace can be increased by

Increasing the size of one of the Datafiles

Adding one or more Datafiles

Cannot be increased

None of the above

Which of the following is/are the DDL statements?

Create

Drop

Alter

All of the Mentioned

GET_BLOCK property is a

Restricted procedure

Unrestricted procedure

Library function

None of the above

In an SQL statement, which of the following parts states the conditions for row selection?

Where

From

Order By

Group By

The Data Manipulation Language statements are

INSERT

UPDATE

SELECT

All of the above

________clause is an additional filter that is applied to the result.

Select

Group-by

Having

Order by

Is it possible to use Transactional control statements in Database Triggers?

Yes

POST-BLOCK trigger is also a ?

Navigational Trigger

Key Trigger

Transaction Trigger

All of the Mentioned

What are the different file extensions that are created by Oracle Reports ?

RDF file & .RPX file

RDX file & .RDF file

REP file & .RDF file

None of the above

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Database - Oracle Test

Test Instructions :

1. The Test is 1hr duration.

2. The Test Paper consists of 30 questions. The maximum marks are 30.

3. All the questions are multiple choice question type with three options for each question.

4. Out of the three options given for each question, only one option is the correct answer.

5. Each question is allotted 1 mark for each correct response.

6. 0.25 will be deducted for incorrect response of each question.

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