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