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Database Systems MCQS Questions
Q.
In SQL, which command is used to select only one copy of each set of duplicable rows
All of the above
None of the above
SELECT UNIQUE
SELECT DIFFERENT
SELECT DISTINCT
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
None of the above
creating and maintaining the data dictionary
removing flagged records for deletion
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?
chain
tree
All of the above
relational
network
Explanation:
The correct answer to the question is: chain
Q.
In SQL, which command is used to changes data in a table?
UPDATE
None of the above
APPEND
INSERT
BROWSE
Explanation:
The correct answer to the question is: UPDATE
Q.
The PROJECT command will create new table that has
None of the above
both (a) and (b)
more fields than the original table
all the fields of master table
more rows than the original table
Explanation:
The correct answer to the question is: None of the above
Q.
A file that is organized in uniform format is formally referred to as a _____ or a database file.
Record
Database
Structured data file
Document
None of the above
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
refers to how closely the files fits into the allocated
is a measure of the percentage of existing records updated during a run
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 recompile view
to create a trigger
to define a view of one or more tables or views
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
None of the above
DDL
All of the above
query language
DML
Explanation:
The correct answer to the question is: DML
Q.
The distinguishable parts of a record are called
files
fields
data
None of the above
database
Explanation:
The correct answer to the question is: fields
Q.
Large collections of files are called
file system
fields
None of the above
databases
records
Explanation:
The correct answer to the question is: databases
Q.
A report generator is used to
data entry
print files on paper
update files
All of the above
None of the above
Explanation:
The correct answer to the question is: print files on paper
Q.
The main idea behind computer files is that it is convenient to
access them
store information together
arrange them
None of the above
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
choose auditing for specific SQL commands
allow user to create databases
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:
file
data base
field
data item
record
Explanation:
The correct answer to the question is: record
Q.
Data encryption techniques are particularly useful for
reducing storage space requirements
protecting data in data communication systems
None of the above
improving data integrity
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?
It is inflexible
All of the above are true
Programs are dependent on the files
It is file-oriented
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 Rolodex card file
All of the above
handwritten list
None of the above
a business form
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
decentralized MIS structure
distributed MIS structure
None of the above
hierarchical MIS structure
Explanation:
The correct answer to the question is: centralized MIS structure
Q.
In order to use a record management system
All of the above
None of the above
You need to understand the model the record management system uses.
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
Document
Record
None of the above
Fields
Explanation:
The correct answer to the question is: Record
Q.
In SQL, which command is used to add new rows to a table?
ALTER TABLE
None of the above
APPEND
ADD ROW
INSERT
Explanation:
The correct answer to the question is: INSERT
Q.
Which of the following is not characteristic of a relational database model?
complex logical relationships
records
tables
treelike structure
None of the above
Explanation:
The correct answer to the question is: treelike structure
Q.
Which of the following contains a complete record of all activity that affected the contents of a database during a certain period of time?
None of the above
data manipulation language
transaction log
report writer
query language
Explanation:
The correct answer to the question is: transaction log
Q.
A data dictionary is a special file that contains
the names of all fields in all files
None of the above
the data types of all fields in all files
All 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
both (a) and (b)
can use aggregate functions like SUM and COUNT
None of the above
are written in English
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
None of the above
two users of the DBMS are interacting with different files at the same time
All of the above
both (a) and (b)
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?
Multimedia
Graphics media
Hypertext
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
ALTER PROCEDURE
None of the above
COMPILE PROCEDURE
MODIFY PROCEDURE id) All of the above
Explanation:
The correct answer to the question is: ALTER PROCEDURE
Q.
Which of the following is not a relational database?
Reflex
FoxPro
None of the above
4th Dimension
dBASE IV
Explanation:
The correct answer to the question is: Reflex
Q.
A list in alphabetical order
both (b) and (c)
None of the above
is in descending order
is the result of a sort operation
is in ascending order
Explanation:
The correct answer to the question is: both (b) and (c)
Q.
An indexing operation
both (b) and (c)
sorts file using two keys
establishes an index for a file
None of the above
sorts a file using a single key
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.
Network database
Hierarchical database
Distributed database
Relational database
None of the above
Explanation:
The correct answer to the question is: Network database
Q.
A compound key
is made up a several pieces of information
is a combination of each unique key
None of the above
both (a) and (b)
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
All of the above
the contents of the form can be printed
the contents of the form are written to the data file
None of the above
the template is written to the data file
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?
data redundancy
difficult to update
All of the above
lack of data independence
program dependence
Explanation:
The correct answer to the question is: All of the above
Q.
Characteristic(s) of a distributed MIS structure is
None of the above
computers supporting local DP operations
a multiprocessing environment
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.
Relational
None of the above
Network
Object-Oriented
Hierarchical
Explanation:
The correct answer to the question is: Relational
Q.
A command that lets you change one or more fields in a record is
Insert
Modify
Look-up
All of the above
None 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?
High level language
SQL
Query language
4GL
None of the above
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
File structure
Fields
Database
Records
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
None of the above
ADD COLUMN
INSERT COLUMN
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 stored with the form
All of the above
the calculations are stored with the form
None of the above
the result of the calculations are printed in report
Explanation:
The correct answer to the question is: the calculations are stored with the form
Q.
A number of related records that are treated as a unit is called
field
file
data
None of the above
batch
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 record
database
data field
None of the above
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
Words
None of the above
Database
Bytes
Explanation:
The correct answer to the question is: Fields
Q.
The highest level in the hierarchy of data organization is called
data bank
data record
data file
database
None of the above
Explanation:
The correct answer to the question is: database
Q.
An operation that will increase the length of a list is
Look-up
Modify
Insert
All of the above
None of the above
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
mouse
plotter
printer
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
SELECT
UPDATE
DELETE
CREATE
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?
ALTER TABLE
MODIFY TABLE
DEFINE TABLE
None of the above
All of the above
Explanation:
The correct answer to the question is: ALTER TABLE
Q.
Which command is used to select distinct subject (SUB) from the table (BOOK)?
SELECT SUB FROM BOOK
SELECT DISTINCT SUB FROM BOOK
None of the above
All of the above
SELECT ALL 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 manipulation language and query language
query language and utilities
data dictionary and query language
data dictionary and transaction log
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
format printed output
None of the above
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.
Relational database
Hierarchical database
None of the above
Network 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
All of the above
lower management
middle management
top management
None 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
None of the above
BPL
AUTOFLOW
Explanation:
The correct answer to the question is: BPL
Q.
The _____ command is used to allocates an extent for the table in SQL
ALTER TABLE
None of the above
REDEFINE TABLE
MODIFY 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?
ALTER DATABASE
ALTER TRIGGER
MODIFY TRIGGER
All of the above
ALTER TABLE
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 hashed file
a tree file
None of the above
a sequential 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?
None of the above
Update file
Master file
Specialized file
Log file
Explanation:
The correct answer to the question is: Master file
Q.
In SQL, the CREATE TABLE is used
to change a table's storage characteristics
to add a column/integrity constraint to a table
to redefine a column
All of the above
to create a table, defining its columns, integrity constrains, and storage allocation
Explanation:
The correct answer to the question is: to create a table, defining its columns, integrity constrains, and storage allocation
Q.
When performing a look-up operation using a form
you type the key in an entry line, and the correct form is displayed
All of the above
you enter the search value into the form
you look at each form sequentially until you see the one you want
None of the above
Explanation:
The correct answer to the question is: you enter the search value into the form
Q.
Data security threats include
None of the above
hardware failure
privacy invasion
All of the above
fraudulent manipulation of data
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
None of the above
CREATE USER
MK USER
All of the above
Explanation:
The correct answer to the question is: CREATE USER
Q.
An audit trail
can be used to restore lost information
All of the above
None of the above
is the recorded history of operations performed on a file
is used to make back-up copies
Explanation:
The correct answer to the question is: is the recorded history of operations performed on a file
Q.
The files stored on a secondary stage device are composed of a hierarchy of data. What does a record in a file contain?
None of the above
Bits
Schema
Data field
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
Network schema
All of the above
None of the above
Hierarchical schema
Relational 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.
the proliferation of data files
a demand for more data to support information needs
All of the above
an increase in the amount of data handled by organizations
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
None of the above
Oracle
SQL
dBASE
Explanation:
The correct answer to the question is: SQL
Q.
In SQL, the CREATE TABLESPACE is used
All of the above
to create a database trigger
to add/rename data files, to change storage
to create a place in the database for storage of scheme objects, rollback segments, and naming the data files to comprise the tablespace
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.
Many-to-one relationship
One-to-many relationship
None of the above
Many-to many 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 add/rename data files
All of the above
to take a tablespace online/offline
to begin/end a backup
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
DEFINE TABLE
None of the above
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?
ROLL BACK INDEX
DELETE INDEX
None of the above
DROP INDEX
REMOVE INDEX
Explanation:
The correct answer to the question is: DROP INDEX
Q.
If you want your database to include methods, you should use a _____ database.
Hierarchical
Object-Oriented
None of the above
Distributed
Network
Explanation:
The correct answer to the question is: Object-Oriented
Q.
With respect to data input, the most accurate description of batch control is
dividing documents to be entered into batches
controlling the input of each input clerk
None of the above
comparing to a pre-calculated figure the total of a data item summed across a batch records put into the system
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 Base Processing System (DBPS)
All of the above
Data Base Management System (DBMS)
Data Management System (DMS)
Explanation:
The correct answer to the question is: All of the above
Q.
In a relational schema, each tuple is divided into fields called
All of the above
Queries
None of the above
Domains
Relations
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
increased security
program/data independence
All of the above are advantages
ability to associate related data
Explanation:
The correct answer to the question is: All of the above are advantages
Q.
A _____ means that one record in a particular record type can be related to many records in another record type and vice-versa.
None of the above
One-to-one relationship
Many-to-many relationship
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?
ERASE TABLE
UNATTACH TABLE
None of the above
DROP TABLE
DELETE TABLE
Explanation:
The correct answer to the question is: DROP TABLE
Q.
When using a database management system, the first thing that you must do is to
keep a floppy disk in readiness
load the software into your micro
activate file editor
create a database file
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
string
None of the above
record
title
list
Explanation:
The correct answer to the question is: record
Q.
Data item characteristics that are important in data management include
None of the above
width
punctuation
spelling
language
Explanation:
The correct answer to the question is: width
Q.
Sort/report generators
do not need to sort before generating a report
are faster than index/report generators
require more disk space than index/report generators
both (a) and (b)
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
only one owner but many owner occurrences
only one member but many member occurrence
All of the above
Explanation:
The correct answer to the question is: only one owner but many owner occurrences
Q.
The master list of an indexed file
None of the above
contains only a list of keys and record numbers
both (b) and (c)
is sorted in ascending order
has a number assigned to each record
Explanation:
The correct answer to the question is: has a number assigned to each record
Q.
The designer of a form includes
data
None of the above
filed designators
prompts
both (a) and (b)
Explanation:
The correct answer to the question is: both (a) and (b)
Q.
After you _____ a record, many data management the environments require you to issue a command to save the changes you made.
Update
Index
Sort key
None of the above
Delete
Explanation:
The correct answer to the question is: Update
Q.
In a large DBMS
All of the above
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
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
both (a) and (b)
a list of keys
None of the above
Explanation:
The correct answer to the question is: both (a) and (b)
Q.
A network schema
permits many-to-many relation
All of the above
None of the above
restricts the structure to a one-to-many relationship
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 SYNONYM
None of the above
All of the above
CREATE SCHEMA
CREATE SAME
Explanation:
The correct answer to the question is: CREATE SYNONYM
Q.
The database administration function includes
All of the above
computer operations management
application programming
database access planning
None of the above
Explanation:
The correct answer to the question is: database access planning
Q.
If the record management system allows you to edit values before they are recorded on disk, you can
change the name of a field
All of the above
change the width of a field
None of the above
correct spelling changes before they are recorded
Explanation:
The correct answer to the question is: correct spelling changes before they are recorded
Q.
What name is given to the collection of facts, items of information or data which are related in some way?
Information tree
Database
Information provider
None of the above
Directory information
Explanation:
The correct answer to the question is: Database
Q.
A database management system
None of the above
can do more than a record management system
both (a) and (b)
is a collection of programs for managing data in a single file
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
they have no records with the same value in the common field
they have a row in common
None of the above
both (b) and (c)
they have a field 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.
Many-to-one relationship
Many-to-many relationship
One-to-many relationship
None of the above
One-to-one relationship
Explanation:
The correct answer to the question is: One-to-one relationship
Q.
Versatile report generators can provide
Subtotals
All of the above
Columnar totals
None 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 :
tree
None of the above
relational
chain
network
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
Index
None of the above
Update
Sort Key
Explanation:
The correct answer to the question is: Sort Key
Q.
Which of the following is a database administrator's function?
database design
performance monitoring
All of the above
backing up the database
user coordination
Explanation:
The correct answer to the question is: All of the above
Q.
Primitive operations common to all record management systems include
Look-up
All of the above
Sort
Print
None of the above
Explanation:
The correct answer to the question is: Look-up
Q.
A logical schema
is the entire database
None of the above
All of the above
is a standard way of organizing information into accessible parts
describes how data is actually stored on disk
Explanation:
The correct answer to the question is: is a standard way of organizing information into accessible parts
Q.
Batch processing is appropriate if
only a few transactions are involved
None of the above
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
Database
Table
Record
Flat File
None of the above
Explanation:
The correct answer to the question is: Database
Q.
Updating a database means
All of the above
reorganizing the database
modifying or adding record occurrences
revising the file structure
None 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
selectively retrieve and print portions of a list
perform arithmetic operations
None of the above
print row-oriented reports
Explanation:
The correct answer to the question is: All of the above
Q.
A scheme describes
record relationships
data elements
None of the above
records and files
All of the above
Explanation:
The correct answer to the question is: All of the above
Q.
The data dictionary tells the DBMS
what attribute are possessed by the data
what these files contain
All of the above
None of the above
what files are in the database
Explanation:
The correct answer to the question is: All of the above
Q.
Embedded pointer provide
a secondary access path
None of the above
All of the above
an inverted index
a physical record key
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
DO INDEX
MODIFY INDEX
ALTER INDEX
REDEFINE INDEX
None of the above
Explanation:
The correct answer to the question is: ALTER INDEX
Q.
Related fields in a data base are grouped to form
None of the above
data record
bank
data file
menu
Explanation:
The correct answer to the question is: data record
Q.
Which of the following is true of a network structure?
It will be the dominant data base of the future
None of the above
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?
SELECT
LIST
BROWSE
CHOOSE
None of the above
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 will be the dominant data base of the future
the size of the disk storage device
It allows a many-to-many relationship
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
on demand report
regularly scheduled report
Explanation:
The correct answer to the question is: on demand report
Q.
A form defines
All of the above
the width of each field
where data is placed on the screen
both (a) and (b)
None of the above
Explanation:
The correct answer to the question is: both (a) and (b)
Q.
A file produced by a spreadsheet
None of the above
is generally stored on disk in an ASCII text format
can be used as it by the DBMS
All of the above
can be used for graphic
Explanation:
The correct answer to the question is: is generally stored on disk in an ASCII text format
Q.
The data-base environment has all of the following components except:
data base
users
data-base administrator
separate files
None of the above
Explanation:
The correct answer to the question is: separate files
Q.
Internal auditors should review data system design before they are
modified
implemented
None of the above
All of the above
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
decide which fields will be used as sort or index keys
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?
DROP FUNCTION
DELETE FUNCTION
ERASE FUNCTION
REMOVE FUNCTION
None of the above
Explanation:
The correct answer to the question is: DROP FUNCTION
Q.
In the DBM approach, application programs perform the
All of the above
processing functions
None of the above
storage function
access control
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?
MODIFY TRIGGERS IN TABLE
All of the above
ALTER TRIGGERS
ALTER TABLE
None of the above
Explanation:
The correct answer to the question is: ALTER TABLE
Q.
Which of the following is a type of DBMS software?
database manipulation language
query language
report writer
utilities
All of the above
Explanation:
The correct answer to the question is: database manipulation language
Q.
In SQL, which command is used to make permanent changes made by statements issue since the beginning of a transaction?
ZIP
COMMIT
PACK
SAVE
None of the above
Explanation:
The correct answer to the question is: COMMIT
Q.
A relational database management (RDBM) package manages data in more than one file at once. How does it organize these file? As
relations
tuple
both (a) and (b)
tables
None of the above
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
a compound key consisting of the first name and the last name
None of the above
the last name
All of the above
the pin code
Explanation:
The correct answer to the question is: a compound key consisting of the first name and the last name
Q.
Periodically adding, changing and deleting file records is called file
upgrading
Updating
restructuring
None of the above
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.
Fields
Records
None of the above
Database
File structure
Explanation:
The correct answer to the question is: Fields
Q.
In SQL, the _____ command is used to recompile a view
None of the above
CREATE VIEW
ALTER VIEW
COMPILE VIEW
DEFINE VIEW
Explanation:
The correct answer to the question is: ALTER VIEW
Q.
If a piece of data is stored in two places in the database, then
changing the data is one spot will cause data inconsistency
None of the above
both (a) and (b)
it can be more easily accessed
storage space is wasted
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
EMMS
None of the above
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 :