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