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