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Database Systems MCQS Questions
Q.
In SQL, which command is used to select only one copy of each set of duplicable rows
None of the above
SELECT DIFFERENT
SELECT UNIQUE
SELECT DISTINCT
All of the above
Explanation:
The correct answer to the question is: SELECT DISTINCT
Q.
Which of the following is not the responsibility of the utilities component of DBMS software?
None of the above
monitoring performance
creating the physical and logical designs
creating and maintaining the data dictionary
removing flagged records for deletion
Explanation:
The correct answer to the question is: creating the physical and logical designs
Q.
Which of the following is not a logical data-base structure?
tree
relational
chain
All of the above
network
Explanation:
The correct answer to the question is: chain
Q.
In SQL, which command is used to changes data in a table?
APPEND
BROWSE
INSERT
None of the above
UPDATE
Explanation:
The correct answer to the question is: UPDATE
Q.
The PROJECT command will create new table that has
more rows than the original table
both (a) and (b)
all the fields of master table
more fields than the original table
None of the above
Explanation:
The correct answer to the question is: None of the above
Q.
A file that is organized in uniform format is formally referred to as a _____ or a database file.
None of the above
Database
Document
Record
Structured data file
Explanation:
The correct answer to the question is: Structured data file
Q.
The activity of a file
is a low percentages of number of records added or deleted from a file
if high, reduces processing efficiency for sequential and nonsequential files
refers to how closely the files fits into the allocated
is a measure of the percentage of existing records updated during a run
None of the above.
Explanation:
The correct answer to the question is: is a low percentages of number of records added or deleted from a file
Q.
In SQL, the CREATE VIEW command is used
None of the above
to recompile view
to create a trigger
to recompile a table
to define a view of one or more tables or views
Explanation:
The correct answer to the question is: to define a view of one or more tables or views
Q.
The language used in application programs to request data from the DBMS is referred to as the
DML
All of the above
DDL
query language
None of the above
Explanation:
The correct answer to the question is: DML
Q.
The distinguishable parts of a record are called
database
data
files
None of the above
fields
Explanation:
The correct answer to the question is: fields
Q.
Large collections of files are called
records
databases
fields
file system
None of the above
Explanation:
The correct answer to the question is: databases
Q.
A report generator is used to
None of the above
update files
print files on paper
All of the above
data entry
Explanation:
The correct answer to the question is: print files on paper
Q.
The main idea behind computer files is that it is convenient to
store information together
None of the above
access them
create them
arrange them
Explanation:
The correct answer to the question is: store information together
Q.
In SQL, GRANT command is used to
None of the above
allow user to access databases
allow user to create databases
grant system privileges, roles, and object privileges to uses and roles
choose auditing for specific SQL commands
Explanation:
The correct answer to the question is: grant system privileges, roles, and object privileges to uses and roles
Q.
The relational model uses some unfamiliar terminology. A tuple is equivalent to a:
data item
file
record
data base
field
Explanation:
The correct answer to the question is: record
Q.
Data encryption techniques are particularly useful for
protecting data in data communication systems
reducing storage space requirements
improving data integrity
None of the above
All of the above
Explanation:
The correct answer to the question is: protecting data in data communication systems
Q.
Which of the following is not true of the traditional approach to information processing?
It is inflexible
All of the above are true
There is common sharing of data among the various applications
Programs are dependent on the files
It is file-oriented
Explanation:
The correct answer to the question is: There is common sharing of data among the various applications
Q.
The model for a record management system might be
handwritten list
a Rolodex card file
All of the above
a business form
None of the above
Explanation:
The correct answer to the question is: All of the above
Q.
The Management Information system (MIS) structure with one main computer system is called a
distributed MIS structure
None of the above
centralized MIS structure
hierarchical MIS structure
decentralized MIS structure
Explanation:
The correct answer to the question is: centralized MIS structure
Q.
In order to use a record management system
You need to understand the low-level details of how information in stored
You need to understand the model the record management system uses.
All of the above
Both (a) and (b)
None of the above
Explanation:
The correct answer to the question is: You need to understand the model the record management system uses.
Q.
A _____ Contains fields of data about one entity.
Document
Record
Fields
None of the above
File
Explanation:
The correct answer to the question is: Record
Q.
In SQL, which command is used to add new rows to a table?
INSERT
None of the above
APPEND
ALTER TABLE
ADD ROW
Explanation:
The correct answer to the question is: INSERT
Q.
Which of the following is not characteristic of a relational database model?
complex logical relationships
records
treelike structure
None of the above
tables
Explanation:
The correct answer to the question is: treelike structure
Q.
Which of the following contains a complete record of all activity that affected the contents of a database during a certain period of time?
data manipulation language
query language
report writer
None of the above
transaction log
Explanation:
The correct answer to the question is: transaction log
Q.
A data dictionary is a special file that contains
the names of all fields in all files
the data types of all fields in all files
the widths of all fields in all files
None of the above
All of the above
Explanation:
The correct answer to the question is: All of the above
Q.
Queries to a database
All of the above
are written in English
None of the above
both (a) and (b)
can use aggregate functions like SUM and COUNT
Explanation:
The correct answer to the question is: can use aggregate functions like SUM and COUNT
Q.
A race condition occurs when
both (a) and (b)
Two concurrent activities interact to cause a processing error
All of the above
two users of the DBMS are interacting with different files at the same time
None of the above
Explanation:
The correct answer to the question is: Two concurrent activities interact to cause a processing error
Q.
What is the name given to the database management system which is able to handle full text data, image data, audio and video?
Graphics media
Full media
Multimedia
None of the above
Hypertext
Explanation:
The correct answer to the question is: Multimedia
Q.
Which of the following command(s) is(are) used to recompile a stored procedure in SQL?
COMPILE PROCEDURE
None of the above
ALTER PROCEDURE
MODIFY PROCEDURE id) All of the above
None of the above
Explanation:
The correct answer to the question is: ALTER PROCEDURE
Q.
Which of the following is not a relational database?
dBASE IV
FoxPro
Reflex
4th Dimension
None of the above
Explanation:
The correct answer to the question is: Reflex
Q.
A list in alphabetical order
is in ascending order
both (b) and (c)
None of the above
is the result of a sort operation
is in descending order
Explanation:
The correct answer to the question is: both (b) and (c)
Q.
An indexing operation
sorts a file using a single key
both (b) and (c)
establishes an index for a file
sorts file using two keys
None of the above
Explanation:
The correct answer to the question is: establishes an index for a file
Q.
The model for a _____ resembles the hierarchical model in many respects.
Network database
Hierarchical database
None of the above
Distributed database
Relational database
Explanation:
The correct answer to the question is: Network database
Q.
A compound key
is made up a several pieces of information
both (a) and (b)
uniquely identifies an item in a list
is a combination of each unique key
None of the above
Explanation:
The correct answer to the question is: both (a) and (b)
Q.
When you have finished entering information into a form
the contents of the form are written to the data file
the template is written to the data file
All of the above
the contents of the form can be printed
None of the above
Explanation:
The correct answer to the question is: the contents of the form are written to the data file
Q.
Which of the following is a serious problem of file management systems?
All of the above
data redundancy
lack of data independence
difficult to update
program dependence
Explanation:
The correct answer to the question is: All of the above
Q.
Characteristic(s) of a distributed MIS structure is
None of the above
a multiprocessing environment
computers supporting local DP operations
interactive sharing of the workload
All of the above
Explanation:
The correct answer to the question is: All of the above
Q.
A _____ database does not use pointers or physical links, but instead finds related records by examining the contents of fields.
Hierarchical
Network
None of the above
Relational
Object-Oriented
Explanation:
The correct answer to the question is: Relational
Q.
A command that lets you change one or more fields in a record is
All of the above
Modify
Insert
Look-up
None of the above
Explanation:
The correct answer to the question is: Modify
Q.
What is the language used by most of the DBMSs for helping their users to access data?
SQL
Query language
4GL
High level language
None of the above
Explanation:
The correct answer to the question is: Query language
Q.
Each of data files has a _____ that describe the way the data is stored in the file.
Records
Fields
None of the above
File structure
Database
Explanation:
The correct answer to the question is: File structure
Q.
In SQL, which command is used to add a column/integrity constraint to a table
MODIFY TABLE
None of the above
ADD COLUMN
ALTER TABLE
INSERT COLUMN
Explanation:
The correct answer to the question is: ALTER TABLE
Q.
If a calculation is embedded in a form
the result of the calculations are printed in report
the result of the calculations are stored with the form
the calculations are stored with the form
All of the above
None of the above
Explanation:
The correct answer to the question is: the calculations are stored with the form
Q.
A number of related records that are treated as a unit is called
field
data
None of the above
file
batch
Explanation:
The correct answer to the question is: file
Q.
In any hierarchy of data organization, the smallest entity to be processed as a single unit is called
data field
None of the above
data record
database
data file
Explanation:
The correct answer to the question is: data field
Q.
A computer file contains several records. What does each record contain?
Database
Bytes
Words
None of the above
Fields
Explanation:
The correct answer to the question is: Fields
Q.
The highest level in the hierarchy of data organization is called
data record
data file
database
None of the above
data bank
Explanation:
The correct answer to the question is: database
Q.
An operation that will increase the length of a list is
None of the above
Modify
Insert
All of the above
Look-up
Explanation:
The correct answer to the question is: Insert
Q.
Which of the following hardware components is the most important to the operation of a database management system?
printer
high speed, large-capacity disk
plotter
high-resolution video display
mouse
Explanation:
The correct answer to the question is: high speed, large-capacity disk
Q.
In SQL, which of the following is not a data Manipulation Language Commands?
SELECT
UPDATE
None of the above
CREATE
DELETE
Explanation:
The correct answer to the question is: CREATE
Q.
Which command(s) is(are) used to enable/disable/drop an integrity constraint in SQL?
MODIFY TABLE
DEFINE TABLE
None of the above
ALTER TABLE
All of the above
Explanation:
The correct answer to the question is: ALTER TABLE
Q.
Which command is used to select distinct subject (SUB) from the table (BOOK)?
SELECT SUB FROM BOOK
SELECT DISTINCT SUB FROM BOOK
All of the above
None of the above
SELECT ALL FROM BOOK
Explanation:
The correct answer to the question is: SELECT DISTINCT SUB FROM BOOK
Q.
Which two files are used during operation of the DBMS?
None of the above
data dictionary and query language
query language and utilities
data dictionary and transaction log
data manipulation language and query language
Explanation:
The correct answer to the question is: data dictionary and transaction log
Q.
A form can be used to
All of the above
format printed output
delete records
None of the above
modify records
Explanation:
The correct answer to the question is: All of the above
Q.
In a _____ a parent record type can be linked to one or more "child" record types, but a child record type can have only one parent.
Hierarchical database
None of the above
Relational database
Distributed database
Network database
Explanation:
The correct answer to the question is: Hierarchical database
Q.
Long-range planning report produced in an MIS are primarily designed for
top management
All of the above
None of the above
lower management
middle management
Explanation:
The correct answer to the question is: top management
Q.
A database management system might consist of application programs and a software package called
BPL
None of the above
FORTRAN
TOTAL
AUTOFLOW
Explanation:
The correct answer to the question is: BPL
Q.
The _____ command is used to allocates an extent for the table in SQL
MODIFY TABLE
MODIFY ALLOCATES
REDEFINE TABLE
None of the above
ALTER TABLE
Explanation:
The correct answer to the question is: MODIFY ALLOCATES
Q.
In SQL, which command(s) is(are) used to enable/disable a database trigger?
All of the above
ALTER DATABASE
ALTER TABLE
ALTER TRIGGER
MODIFY TRIGGER
Explanation:
The correct answer to the question is: ALTER TRIGGER
Q.
The physical location of a record is determined by a mathematical formula that transforms a file key into a record location in
a sequential file
an indexed file
a tree file
None of the above
a hashed file
Explanation:
The correct answer to the question is: a hashed file
Q.
A large computer information system maintains many different computer files. Which amongst them is called a perpetual file?
None of the above
Update file
Specialized file
Log file
Master file
Explanation:
The correct answer to the question is: Master file
Q.
In SQL, the CREATE TABLE is used
to add a column/integrity constraint to a table
to create a table, defining its columns, integrity constrains, and storage allocation
to change a table's storage characteristics
to redefine a column
All of the above
Explanation:
The correct answer to the question is: to create a table, defining its columns, integrity constrains, and storage allocation
Q.
When performing a look-up operation using a form
All of the above
you type the key in an entry line, and the correct form is displayed
None of the above
you look at each form sequentially until you see the one you want
you enter the search value into the form
Explanation:
The correct answer to the question is: you enter the search value into the form
Q.
Data security threats include
None of the above
fraudulent manipulation of data
privacy invasion
hardware failure
All of the above
Explanation:
The correct answer to the question is: privacy invasion
Q.
In SQL, which command is used to create a database user?
MK USER
None of the above
ADD USER TO DATABASE
CREATE USER
All of the above
Explanation:
The correct answer to the question is: CREATE USER
Q.
An audit trail
is the recorded history of operations performed on a file
can be used to restore lost information
None of the above
is used to make back-up copies
All of the above
Explanation:
The correct answer to the question is: is the recorded history of operations performed on a file
Q.
The files stored on a secondary stage device are composed of a hierarchy of data. What does a record in a file contain?
None of the above
Schema
Characters
Bits
Data field
Explanation:
The correct answer to the question is: Data field
Q.
A top-to-bottom relationship among the items in a database is established by a
Relational schema
All of the above
Network schema
Hierarchical schema
None of the above
Explanation:
The correct answer to the question is: Hierarchical schema
Q.
A condition that led to the development of databases was
All of the above
a demand for more data to support information needs
None of the above.
the proliferation of data files
an increase in the amount of data handled by organizations
Explanation:
The correct answer to the question is: All of the above
Q.
Which language has recently become the de-facto standard for interfacing application programs with relational database system?
4GL
None of the above
Oracle
SQL
dBASE
Explanation:
The correct answer to the question is: SQL
Q.
In SQL, the CREATE TABLESPACE is used
to create a place in the database for storage of scheme objects, rollback segments, and naming the data files to comprise the tablespace
to add/rename data files, to change storage
All of the above
None of the above
to create a database trigger
Explanation:
The correct answer to the question is: to create a place in the database for storage of scheme objects, rollback segments, and naming the data files to comprise the tablespace
Q.
A _____ means that one record in a particular record type may be related to more than one record of another record type.
Many-to many relationship
Many-to-one relationship
One-to-many relationship
None of the above
One-to-one relationship
Explanation:
The correct answer to the question is: One-to-many relationship
Q.
In SQL, the ALTER TABLESPACE command is used
to take a tablespace online/offline
All of the above
to begin/end a backup
to change storage characteristics
to add/rename data files
Explanation:
The correct answer to the question is: All of the above
Q.
Which command(s) is(are) used to redefine a column of the table in SQL ?
MODIFY TABLE
DEFINE TABLE
All of the above
ALTER TABLE
None of the above
Explanation:
The correct answer to the question is: ALTER TABLE
Q.
Which command is used to remove an index from the database in SQL?
ROLL BACK INDEX
None of the above
DELETE INDEX
DROP INDEX
REMOVE INDEX
Explanation:
The correct answer to the question is: DROP INDEX
Q.
If you want your database to include methods, you should use a _____ database.
None of the above
Object-Oriented
Distributed
Network
Hierarchical
Explanation:
The correct answer to the question is: Object-Oriented
Q.
With respect to data input, the most accurate description of batch control is
All of the above
comparing to a pre-calculated figure the total of a data item summed across a batch records put into the system
controlling the input of each input clerk
None of the above
dividing documents to be entered into batches
Explanation:
The correct answer to the question is: comparing to a pre-calculated figure the total of a data item summed across a batch records put into the system
Q.
A set of programs that handle a firm's data base responsibilities is called a
Data Management System (DMS)
All of the above
None of the above
Data Base Management System (DBMS)
Data Base Processing System (DBPS)
Explanation:
The correct answer to the question is: All of the above
Q.
In a relational schema, each tuple is divided into fields called
All of the above
Queries
Relations
Domains
None of the above
Explanation:
The correct answer to the question is: Domains
Q.
Which of the following is not an advantage of the data-base approach?
elimination of the data redundancy
All of the above are advantages
increased security
program/data independence
ability to associate related data
Explanation:
The correct answer to the question is: All of the above are advantages
Q.
A _____ means that one record in a particular record type can be related to many records in another record type and vice-versa.
One-to-many relationship
Many-to-many relationship
Many-to-one relationship
None of the above
One-to-one relationship
Explanation:
The correct answer to the question is: Many-to-many relationship
Q.
Which command is used to remove a table from the database in SQL?
None of the above
DELETE TABLE
UNATTACH TABLE
ERASE TABLE
DROP TABLE
Explanation:
The correct answer to the question is: DROP TABLE
Q.
When using a database management system, the first thing that you must do is to
keep a floppy disk in readiness
activate file editor
None of the above
load the software into your micro
create a database file
Explanation:
The correct answer to the question is: load the software into your micro
Q.
Data items grouped together for storage purposes are called a
None of the above
list
title
record
string
Explanation:
The correct answer to the question is: record
Q.
Data item characteristics that are important in data management include
spelling
width
language
None of the above
punctuation
Explanation:
The correct answer to the question is: width
Q.
Sort/report generators
require more disk space than index/report generators
None of the above
are faster than index/report generators
do not need to sort before generating a report
both (a) and (b)
Explanation:
The correct answer to the question is: require more disk space than index/report generators
Q.
An-owner-member set in the CODASYL specifications may have
only one owner but many owner occurrences
only one member but many member occurrence
None of the above
more than one member but only one occurrence per member
All of the above
Explanation:
The correct answer to the question is: only one owner but many owner occurrences
Q.
The master list of an indexed file
both (b) and (c)
None of the above
is sorted in ascending order
has a number assigned to each record
contains only a list of keys and record numbers
Explanation:
The correct answer to the question is: has a number assigned to each record
Q.
The designer of a form includes
both (a) and (b)
None of the above
data
filed designators
prompts
Explanation:
The correct answer to the question is: both (a) and (b)
Q.
After you _____ a record, many data management the environments require you to issue a command to save the changes you made.
None of the above
Update
Index
Delete
Sort key
Explanation:
The correct answer to the question is: Update
Q.
In a large DBMS
each subschema contains every field in the logical schema
each user can access every sub
All of the above
None of the above
each user can "see" only a small part of the entire database
Explanation:
The correct answer to the question is: each user can "see" only a small part of the entire database
Q.
The index consists of
None of the above
a list of keys
All of the above
both (a) and (b)
pointers to the master list
Explanation:
The correct answer to the question is: both (a) and (b)
Q.
A network schema
permits many-to-many relation
All of the above
stores data in tables
None of the above
restricts the structure to a one-to-many relationship
Explanation:
The correct answer to the question is: permits many-to-many relation
Q.
In SQL, which command(s) is(are) used to create a synonym for a schema object?
All of the above
CREATE SYNONYM
CREATE SAME
CREATE SCHEMA
None of the above
Explanation:
The correct answer to the question is: CREATE SYNONYM
Q.
The database administration function includes
All of the above
application programming
None of the above
database access planning
computer operations management
Explanation:
The correct answer to the question is: database access planning
Q.
If the record management system allows you to edit values before they are recorded on disk, you can
None of the above
correct spelling changes before they are recorded
All of the above
change the width of a field
change the name of a field
Explanation:
The correct answer to the question is: correct spelling changes before they are recorded
Q.
What name is given to the collection of facts, items of information or data which are related in some way?
Information tree
None of the above
Directory information
Database
Information provider
Explanation:
The correct answer to the question is: Database
Q.
A database management system
both (a) and (b)
is a collection of programs for managing data in a single file
None of the above
can do more than a record management system
allows simultaneous access to multiple files
Explanation:
The correct answer to the question is: both (a) and (b)
Q.
Two files may be joined into a third file if
they have a field in common
they have a row in common
None of the above
both (b) and (c)
they have no records with the same value in the common field
Explanation:
The correct answer to the question is: they have a field in common
Q.
A _____ means that one record in a particular record type is related to only one record of another record type.
Many-to-many relationship
One-to-one relationship
Many-to-one relationship
One-to-many relationship
None of the above
Explanation:
The correct answer to the question is: One-to-one relationship
Q.
Versatile report generators can provide
Calculations
Subtotals
All of the above
None of the above
Columnar totals
Explanation:
The correct answer to the question is: All of the above
Q.
The logical data structure with a one-to-many relationship is a :
chain
None of the above
tree
network
relational
Explanation:
The correct answer to the question is: tree
Q.
If you want to group the records in the abc database, you could use the Jobcode as the _____.
Index
Delete
Sort Key
None of the above
Update
Explanation:
The correct answer to the question is: Sort Key
Q.
Which of the following is a database administrator's function?
user coordination
All of the above
backing up the database
database design
performance monitoring
Explanation:
The correct answer to the question is: All of the above
Q.
Primitive operations common to all record management systems include
All of the above
None of the above
Sort
Look-up
Print
Explanation:
The correct answer to the question is: Look-up
Q.
A logical schema
None of the above
is a standard way of organizing information into accessible parts
describes how data is actually stored on disk
All of the above
is the entire database
Explanation:
The correct answer to the question is: is a standard way of organizing information into accessible parts
Q.
Batch processing is appropriate if
only a few transactions are involved
a large computer system is available
All of the above
None of the above
only a small computer system is available
Explanation:
The correct answer to the question is: None of the above
Q.
It is more accurate to define a _____ as a variety of different record types that are treated as a single unit
Record
Table
Database
None of the above
Flat File
Explanation:
The correct answer to the question is: Database
Q.
Updating a database means
None of the above
modifying or adding record occurrences
reorganizing the database
revising the file structure
All of the above
Explanation:
The correct answer to the question is: modifying or adding record occurrences
Q.
Sophisticated report generators can
All of the above
None of the above
print row-oriented reports
perform arithmetic operations
selectively retrieve and print portions of a list
Explanation:
The correct answer to the question is: All of the above
Q.
A scheme describes
records and files
record relationships
data elements
All of the above
None of the above
Explanation:
The correct answer to the question is: All of the above
Q.
The data dictionary tells the DBMS
what attribute are possessed by the data
All of the above
what files are in the database
what these files contain
None of the above
Explanation:
The correct answer to the question is: All of the above
Q.
Embedded pointer provide
All of the above
a secondary access path
an inverted index
a physical record key
None of the above
Explanation:
The correct answer to the question is: a secondary access path
Q.
In SQL, which command(s) is(are) used to redefine an index's future storage allocation
DO INDEX
None of the above
REDEFINE INDEX
MODIFY INDEX
ALTER INDEX
Explanation:
The correct answer to the question is: ALTER INDEX
Q.
Related fields in a data base are grouped to form
data record
bank
None of the above
data file
menu
Explanation:
The correct answer to the question is: data record
Q.
Which of the following is true of a network structure?
It is a physical representation of the data
It allows a many-to-many relationship
It is conceptually simple
It will be the dominant data base of the future
None of the above
Explanation:
The correct answer to the question is: It allows a many-to-many relationship
Q.
In SQL, which command is used to select data in rows and column from one or more tables?
LIST
CHOOSE
BROWSE
SELECT
None of the above
Explanation:
The correct answer to the question is: SELECT
Q.
A data dictionary doesn't provide information about:
where data is located
It allows a many-to-many relationship
the size of the disk storage device
It will be the dominant data base of the future
It is conceptually simple
Explanation:
The correct answer to the question is: the size of the disk storage device
Q.
The on-line, softcopy display a customer's charge account to respond to an inquiry is an examples of a
regularly scheduled report
None of the above
forecasting report
on demand report
exception report
Explanation:
The correct answer to the question is: on demand report
Q.
A form defines
both (a) and (b)
None of the above
where data is placed on the screen
All of the above
the width of each field
Explanation:
The correct answer to the question is: both (a) and (b)
Q.
A file produced by a spreadsheet
can be used as it by the DBMS
can be used for graphic
None of the above
is generally stored on disk in an ASCII text format
All of the above
Explanation:
The correct answer to the question is: is generally stored on disk in an ASCII text format
Q.
The data-base environment has all of the following components except:
None of the above
data base
users
separate files
data-base administrator
Explanation:
The correct answer to the question is: separate files
Q.
Internal auditors should review data system design before they are
implemented
All of the above
modified
developed
None of the above
Explanation:
The correct answer to the question is: All of the above
Q.
To have a file hold a list, it is necessary to
All of the above
identify the name, width and type of the fields of each record.
identify the records in the list
None of the above
decide which fields will be used as sort or index keys
Explanation:
The correct answer to the question is: All of the above
Q.
In SQL, which command is used to remove a stored function from the database?
None of the above
REMOVE FUNCTION
ERASE FUNCTION
DROP FUNCTION
DELETE FUNCTION
Explanation:
The correct answer to the question is: DROP FUNCTION
Q.
In the DBM approach, application programs perform the
access control
None of the above
processing functions
All of the above
storage function
Explanation:
The correct answer to the question is: processing functions
Q.
In SQL, which command(s) is(are) used to enable/disable all triggers on a table?
All of the above
MODIFY TRIGGERS IN TABLE
ALTER TRIGGERS
ALTER TABLE
None of the above
Explanation:
The correct answer to the question is: ALTER TABLE
Q.
Which of the following is a type of DBMS software?
report writer
All of the above
utilities
database manipulation language
query language
Explanation:
The correct answer to the question is: database manipulation language
Q.
In SQL, which command is used to make permanent changes made by statements issue since the beginning of a transaction?
None of the above
COMMIT
PACK
SAVE
ZIP
Explanation:
The correct answer to the question is: COMMIT
Q.
A relational database management (RDBM) package manages data in more than one file at once. How does it organize these file? As
tables
None of the above
both (a) and (b)
tuple
relations
Explanation:
The correct answer to the question is: both (a) and (b)
Q.
A list consists of last names, first names, addresses, and pin codes if all people in the list have the same last and the same pin code, a useful key would be
the pin code
None of the above
the last name
All of the above
a compound key consisting of the first name and the last name
Explanation:
The correct answer to the question is: a compound key consisting of the first name and the last name
Q.
Periodically adding, changing and deleting file records is called file
Updating
None of the above
restructuring
upgrading
renewing
Explanation:
The correct answer to the question is: Updating
Q.
A ____ Contains the smallest unit of meaningful data, so you might call it the basic building block for a data file.
Database
File structure
Records
Fields
None of the above
Explanation:
The correct answer to the question is: Fields
Q.
In SQL, the _____ command is used to recompile a view
COMPILE VIEW
CREATE VIEW
None of the above
DEFINE VIEW
ALTER VIEW
Explanation:
The correct answer to the question is: ALTER VIEW
Q.
If a piece of data is stored in two places in the database, then
both (a) and (b)
None of the above
it can be more easily accessed
storage space is wasted
changing the data is one spot will cause data inconsistency
Explanation:
The correct answer to the question is: both (a) and (b)
Q.
What is the abbreviation used for a software package that permits the users to create, retrieve and maintain records in a database?
DASD
None of the above
FMS
EMMS
DBMS
Explanation:
The correct answer to the question is: DBMS
Q.
The way a particular application views the data from the data base that the application uses is a :