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