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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
SELECT UNIQUE
SELECT DISTINCT
None of the above
SELECT DIFFERENT
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 and maintaining the data dictionary
creating the physical and logical designs
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
chain
relational
network
All of the above
Explanation:
The correct answer to the question is: chain
Q.
In SQL, which command is used to changes data in a table?
INSERT
BROWSE
APPEND
None of the above
UPDATE
Explanation:
The correct answer to the question is: UPDATE
Q.
The PROJECT command will create new table that has
None of the above
more fields than the original table
more rows than the original table
both (a) and (b)
all the fields of master table
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.
Record
Structured data file
Database
None of the above
Document
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
None of the above.
is a measure of the percentage of existing records updated during a run
if high, reduces processing efficiency for sequential and nonsequential files
refers to how closely the files fits into the allocated
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 define a view of one or more tables or views
to recompile view
to create a trigger
to recompile a table
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
DDL
None of the above
DML
query language
All of the above
Explanation:
The correct answer to the question is: DML
Q.
The distinguishable parts of a record are called
data
fields
None of the above
database
files
Explanation:
The correct answer to the question is: fields
Q.
Large collections of files are called
records
fields
file system
None of the above
databases
Explanation:
The correct answer to the question is: databases
Q.
A report generator is used to
None of the above
data entry
print files on paper
All of the above
update files
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
create them
access them
arrange them
None of the above
store information together
Explanation:
The correct answer to the question is: store information together
Q.
In SQL, GRANT command is used to
grant system privileges, roles, and object privileges to uses and roles
allow user to create databases
choose auditing for specific SQL commands
allow user to access databases
None of the above
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:
field
data item
file
data base
record
Explanation:
The correct answer to the question is: record
Q.
Data encryption techniques are particularly useful for
None of the above
All of the above
improving data integrity
reducing storage space requirements
protecting data in data communication systems
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?
Programs are dependent on the files
All of the above are true
It is file-oriented
There is common sharing of data among the various applications
It is inflexible
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
None of the above
handwritten list
a Rolodex card file
a business form
All 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
hierarchical MIS structure
decentralized MIS structure
None of the above
centralized MIS structure
Explanation:
The correct answer to the question is: centralized MIS structure
Q.
In order to use a record management system
All of the above
Both (a) and (b)
You need to understand the low-level details of how information in stored
You need to understand the model the record management system uses.
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.
Fields
None of the above
File
Record
Document
Explanation:
The correct answer to the question is: Record
Q.
In SQL, which command is used to add new rows to a table?
None of the above
APPEND
ALTER TABLE
ADD ROW
INSERT
Explanation:
The correct answer to the question is: INSERT
Q.
Which of the following is not characteristic of a relational database model?
None of the above
records
treelike structure
complex logical relationships
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?
report writer
data manipulation language
transaction log
None of the above
query language
Explanation:
The correct answer to the question is: transaction log
Q.
A data dictionary is a special file that contains
All of the above
the names of all fields in all files
the data types of all fields in all files
None of the above
the widths of all fields in all files
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
both (a) and (b)
can use aggregate functions like SUM and COUNT
None of the above
Explanation:
The correct answer to the question is: can use aggregate functions like SUM and COUNT
Q.
A race condition occurs when
Two concurrent activities interact to cause a processing error
All of the above
None of the above
two users of the DBMS are interacting with different files at the same time
both (a) and (b)
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
Hypertext
Multimedia
Full media
None of the above
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?
ALTER PROCEDURE
MODIFY PROCEDURE id) All of the above
None of the above
None of the above
COMPILE PROCEDURE
Explanation:
The correct answer to the question is: ALTER PROCEDURE
Q.
Which of the following is not a relational database?
Reflex
4th Dimension
dBASE IV
None of the above
FoxPro
Explanation:
The correct answer to the question is: Reflex
Q.
A list in alphabetical order
is in descending order
None of the above
is the result of a sort operation
both (b) and (c)
is in ascending order
Explanation:
The correct answer to the question is: both (b) and (c)
Q.
An indexing operation
sorts a file using a single key
None of the above
sorts file using two keys
both (b) and (c)
establishes an index for a file
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.
Relational database
Distributed database
Network database
None of the above
Hierarchical database
Explanation:
The correct answer to the question is: Network database
Q.
A compound key
uniquely identifies an item in a list
both (a) and (b)
is made up a several pieces of information
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 template is written to the data file
the contents of the form are written to the data file
None of the above
the contents of the form can be printed
All 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?
difficult to update
lack of data independence
data redundancy
All of the above
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
interactive sharing of the workload
computers supporting local DP operations
All of the above
a multiprocessing environment
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.
Object-Oriented
Network
Relational
None of the above
Hierarchical
Explanation:
The correct answer to the question is: Relational
Q.
A command that lets you change one or more fields in a record is
Insert
Look-up
Modify
None of the above
All 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?
None of the above
4GL
High level language
SQL
Query language
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.
File structure
None of the above
Records
Fields
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
ALTER TABLE
None of the above
ADD COLUMN
INSERT COLUMN
MODIFY TABLE
Explanation:
The correct answer to the question is: ALTER TABLE
Q.
If a calculation is embedded in a form
All of the above
None of the above
the result of the calculations are stored with the form
the calculations are stored with the form
the result of the calculations are printed in report
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
file
field
batch
data
None of the above
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
data file
data record
database
None of the above
Explanation:
The correct answer to the question is: data field
Q.
A computer file contains several records. What does each record contain?
None of the above
Words
Bytes
Fields
Database
Explanation:
The correct answer to the question is: Fields
Q.
The highest level in the hierarchy of data organization is called
None of the above
database
data bank
data record
data file
Explanation:
The correct answer to the question is: database
Q.
An operation that will increase the length of a list is
Insert
All of the above
Look-up
None of the above
Modify
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
mouse
high-resolution video display
high speed, large-capacity disk
plotter
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
DELETE
None of the above
CREATE
UPDATE
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?
All of the above
DEFINE TABLE
ALTER TABLE
MODIFY TABLE
None 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)?
All of the above
SELECT ALL FROM BOOK
None of the above
SELECT SUB FROM BOOK
SELECT DISTINCT SUB 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?
data dictionary and query language
query language and utilities
None of the above
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
modify records
format printed output
delete records
None of the above
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.
Relational database
Distributed database
None of the above
Network database
Hierarchical 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
middle management
None of the above
All of the above
lower 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
TOTAL
FORTRAN
None of the above
AUTOFLOW
Explanation:
The correct answer to the question is: BPL
Q.
The _____ command is used to allocates an extent for the table in SQL
REDEFINE TABLE
None of the above
MODIFY ALLOCATES
MODIFY TABLE
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 TRIGGER
ALTER DATABASE
ALTER TABLE
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
None of the above
an indexed file
a tree file
a hashed file
a sequential 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
Master file
Log file
Specialized file
Explanation:
The correct answer to the question is: Master file
Q.
In SQL, the CREATE TABLE is used
All of the above
to change a table's storage characteristics
to add a column/integrity constraint to a table
to redefine a column
to create a table, defining its columns, integrity constrains, and storage allocation
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
None of the above
you type the key in an entry line, and the correct form is displayed
you look at each form sequentially until you see the one you want
All of the above
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
privacy invasion
None of the above
fraudulent manipulation of data
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?
CREATE USER
All of the above
ADD USER TO DATABASE
MK USER
None of the above
Explanation:
The correct answer to the question is: CREATE USER
Q.
An audit trail
can be used to restore lost information
All of the above
None of the above
is the recorded history of operations performed on a file
is used to make back-up copies
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?
Schema
Characters
Bits
Data field
None of the above
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
Network schema
None of the above
Hierarchical schema
All 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
an increase in the amount of data handled by organizations
the proliferation of data files
None of the above.
a demand for more data to support information needs
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
Oracle
None of the above
SQL
dBASE
Explanation:
The correct answer to the question is: SQL
Q.
In SQL, the CREATE TABLESPACE is used
to create a database trigger
All of the above
None of the above
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
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-one relationship
One-to-many relationship
None of the above
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
to begin/end a backup
to add/rename data files
to change storage characteristics
All of the above
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 ?
None of the above
ALTER TABLE
All of the above
MODIFY TABLE
DEFINE TABLE
Explanation:
The correct answer to the question is: ALTER TABLE
Q.
Which command is used to remove an index from the database in SQL?
DELETE INDEX
DROP INDEX
REMOVE INDEX
ROLL BACK INDEX
None of the above
Explanation:
The correct answer to the question is: DROP INDEX
Q.
If you want your database to include methods, you should use a _____ database.
Network
Object-Oriented
None of the above
Distributed
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
None of the above
All of the above
controlling the input of each input clerk
dividing documents to be entered into batches
comparing to a pre-calculated figure the total of a data item summed across a batch records put into the system
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
None of the above
All of the above
Data Base Management System (DBMS)
Data Base Processing System (DBPS)
Data Management System (DMS)
Explanation:
The correct answer to the question is: All of the above
Q.
In a relational schema, each tuple is divided into fields called
Relations
All of the above
None of the above
Queries
Domains
Explanation:
The correct answer to the question is: Domains
Q.
Which of the following is not an advantage of the data-base approach?
increased security
ability to associate related data
All of the above are advantages
elimination of the data redundancy
program/data independence
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.
Many-to-many relationship
None of the above
One-to-one relationship
One-to-many relationship
Many-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
UNATTACH TABLE
DELETE TABLE
DROP TABLE
ERASE 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
activate file editor
create a database file
keep a floppy disk in readiness
None of the above
load the software into your micro
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
string
None of the above
list
record
title
Explanation:
The correct answer to the question is: record
Q.
Data item characteristics that are important in data management include
width
None of the above
punctuation
language
spelling
Explanation:
The correct answer to the question is: width
Q.
Sort/report generators
require more disk space than index/report generators
do not need to sort before generating a report
both (a) and (b)
are faster than index/report generators
None of the above
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
more than one member but only one occurrence per member
only one member but many member occurrence
only one owner but many owner occurrences
None of the above
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
contains only a list of keys and record numbers
None of the above
has a number assigned to each record
both (b) and (c)
is sorted in ascending order
Explanation:
The correct answer to the question is: has a number assigned to each record
Q.
The designer of a form includes
filed designators
None of the above
data
both (a) and (b)
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.
Index
Delete
Update
Sort key
None of the above
Explanation:
The correct answer to the question is: Update
Q.
In a large DBMS
All of the above
each subschema contains every field in the logical schema
each user can access every sub
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
a list of keys
None of the above
both (a) and (b)
pointers to the master list
All of the above
Explanation:
The correct answer to the question is: both (a) and (b)
Q.
A network schema
None of the above
restricts the structure to a one-to-many relationship
stores data in tables
All of the above
permits many-to-many relation
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?
CREATE SAME
CREATE SCHEMA
All of the above
None of the above
CREATE SYNONYM
Explanation:
The correct answer to the question is: CREATE SYNONYM
Q.
The database administration function includes
None of the above
All of the above
database access planning
application programming
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
change the name of a field
All of the above
change the width of a field
None of the above
correct spelling changes before they are recorded
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?
Database
None of the above
Information provider
Information tree
Directory information
Explanation:
The correct answer to the question is: Database
Q.
A database management system
allows simultaneous access to multiple files
both (a) and (b)
None of the above
is a collection of programs for managing data in a single file
can do more than a record management system
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 no records with the same value in the common field
they have a field in common
None of the above
both (b) and (c)
they have a row in common
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.
One-to-one relationship
Many-to-one relationship
None of the above
One-to-many relationship
Many-to-many relationship
Explanation:
The correct answer to the question is: One-to-one relationship
Q.
Versatile report generators can provide
Subtotals
None of the above
Columnar totals
All of the above
Calculations
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 :
None of the above
chain
relational
network
tree
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 _____.
None of the above
Sort Key
Index
Delete
Update
Explanation:
The correct answer to the question is: Sort Key
Q.
Which of the following is a database administrator's function?
database design
performance monitoring
backing up the database
All of the above
user coordination
Explanation:
The correct answer to the question is: All of the above
Q.
Primitive operations common to all record management systems include
Print
None of the above
Look-up
All of the above
Sort
Explanation:
The correct answer to the question is: Look-up
Q.
A logical schema
is the entire database
describes how data is actually stored on disk
All of the above
None of the above
is a standard way of organizing information into accessible parts
Explanation:
The correct answer to the question is: is a standard way of organizing information into accessible parts
Q.
Batch processing is appropriate if
All of the above
None of the above
a large computer system is available
only a few transactions are involved
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
None of the above
Flat File
Table
Database
Record
Explanation:
The correct answer to the question is: Database
Q.
Updating a database means
None of the above
reorganizing the database
revising the file structure
All of the above
modifying or adding record occurrences
Explanation:
The correct answer to the question is: modifying or adding record occurrences
Q.
Sophisticated report generators can
print row-oriented reports
selectively retrieve and print portions of a list
All of the above
None of the above
perform arithmetic operations
Explanation:
The correct answer to the question is: All of the above
Q.
A scheme describes
records and files
None of the above
data elements
record relationships
All 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
None of the above
what these files contain
what files are in the database
All of the above
Explanation:
The correct answer to the question is: All of the above
Q.
Embedded pointer provide
a secondary access path
an inverted index
a physical record key
None of the above
All 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
ALTER INDEX
MODIFY INDEX
DO INDEX
REDEFINE INDEX
None of the above
Explanation:
The correct answer to the question is: ALTER INDEX
Q.
Related fields in a data base are grouped to form
menu
None of the above
bank
data record
data file
Explanation:
The correct answer to the question is: data record
Q.
Which of the following is true of a network structure?
It is conceptually simple
None of the above
It allows a many-to-many relationship
It will be the dominant data base of the future
It is a physical representation of the data
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?
None of the above
BROWSE
CHOOSE
SELECT
LIST
Explanation:
The correct answer to the question is: SELECT
Q.
A data dictionary doesn't provide information about:
where data is located
It is conceptually simple
It allows a many-to-many relationship
the size of the disk storage device
It will be the dominant data base of the future
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
None of the above
forecasting report
on demand report
regularly scheduled report
exception report
Explanation:
The correct answer to the question is: on demand report
Q.
A form defines
where data is placed on the screen
the width of each field
All of the above
both (a) and (b)
None of the above
Explanation:
The correct answer to the question is: both (a) and (b)
Q.
A file produced by a spreadsheet
can be used for graphic
None of the above
can be used as it by the DBMS
All of the above
is generally stored on disk in an ASCII text format
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:
users
separate files
data base
None of the above
data-base administrator
Explanation:
The correct answer to the question is: separate files
Q.
Internal auditors should review data system design before they are
None of the above
implemented
developed
All of the above
modified
Explanation:
The correct answer to the question is: All of the above
Q.
To have a file hold a list, it is necessary to
decide which fields will be used as sort or index keys
identify the name, width and type of the fields of each record.
None of the above
identify the records in the list
All of the above
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?
DROP FUNCTION
ERASE FUNCTION
None of the above
DELETE FUNCTION
REMOVE FUNCTION
Explanation:
The correct answer to the question is: DROP FUNCTION
Q.
In the DBM approach, application programs perform the
processing functions
access control
storage function
All of the above
None of the above
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
ALTER TABLE
ALTER TRIGGERS
MODIFY TRIGGERS IN 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?
query language
report writer
utilities
database manipulation language
All of the above
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?
ZIP
SAVE
PACK
COMMIT
None of the above
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
tuple
both (a) and (b)
None of the above
relations
tables
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 last name
a compound key consisting of the first name and the last name
None of the above
All of the above
the pin code
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
None of the above
Updating
restructuring
renewing
upgrading
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.
Records
Database
Fields
File structure
None of the above
Explanation:
The correct answer to the question is: Fields
Q.
In SQL, the _____ command is used to recompile a view
DEFINE VIEW
COMPILE VIEW
CREATE VIEW
None of the above
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
changing the data is one spot will cause data inconsistency
storage space is wasted
it can be more easily accessed
None of the above
both (a) and (b)
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?
EMMS
None of the above
DASD
FMS
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 :