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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
None of the above
SELECT UNIQUE
SELECT DISTINCT
All of the above
Explanation:
The correct answer to the question is: SELECT DISTINCT
Q.
Which of the following is not the responsibility of the utilities component of DBMS software?
removing flagged records for deletion
monitoring performance
None of the above
creating and maintaining the data dictionary
creating the physical and logical designs
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
relational
network
All of the above
Explanation:
The correct answer to the question is: chain
Q.
In SQL, which command is used to changes data in a table?
BROWSE
INSERT
UPDATE
APPEND
None of the above
Explanation:
The correct answer to the question is: UPDATE
Q.
The PROJECT command will create new table that has
both (a) and (b)
more fields than the original table
None of the above
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.
Structured data file
None of the above
Document
Database
Record
Explanation:
The correct answer to the question is: Structured data file
Q.
The activity of a file
refers to how closely the files fits into the allocated
None of the above.
if high, reduces processing efficiency for sequential and nonsequential files
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
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
None of the above
to recompile a table
to recompile view
to create a trigger
to define a view of one or more tables or views
Explanation:
The correct answer to the question is: to define a view of one or more tables or views
Q.
The language used in application programs to request data from the DBMS is referred to as the
All of the above
DML
DDL
None of the above
query language
Explanation:
The correct answer to the question is: DML
Q.
The distinguishable parts of a record are called
data
database
None of the above
fields
files
Explanation:
The correct answer to the question is: fields
Q.
Large collections of files are called
records
databases
file system
fields
None of the above
Explanation:
The correct answer to the question is: databases
Q.
A report generator is used to
update files
print files on paper
None of the above
All of the above
data entry
Explanation:
The correct answer to the question is: print files on paper
Q.
The main idea behind computer files is that it is convenient to
arrange them
create them
store information together
None of the above
access 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
grant system privileges, roles, and object privileges to uses and roles
allow user to access databases
allow user to create databases
Explanation:
The correct answer to the question is: grant system privileges, roles, and object privileges to uses and roles
Q.
The relational model uses some unfamiliar terminology. A tuple is equivalent to a:
field
record
file
data base
data item
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
All of the above
reducing storage space requirements
improving data integrity
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
There is common sharing of data among the various applications
Programs are dependent on the files
All of the above are true
It is file-oriented
Explanation:
The correct answer to the question is: There is common sharing of data among the various applications
Q.
The model for a record management system might be
handwritten list
None of the above
a business form
a Rolodex card file
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
distributed MIS structure
None of the above
decentralized MIS structure
hierarchical MIS structure
Explanation:
The correct answer to the question is: centralized MIS structure
Q.
In order to use a record management system
All of the above
You need to understand the low-level details of how information in stored
None of the above
You need to understand the model the record management system uses.
Both (a) and (b)
Explanation:
The correct answer to the question is: You need to understand the model the record management system uses.
Q.
A _____ Contains fields of data about one entity.
Fields
File
Record
None of the above
Document
Explanation:
The correct answer to the question is: Record
Q.
In SQL, which command is used to add new rows to a table?
APPEND
ALTER TABLE
None of the above
ADD ROW
INSERT
Explanation:
The correct answer to the question is: INSERT
Q.
Which of the following is not characteristic of a relational database model?
tables
None of the above
records
treelike structure
complex logical relationships
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
report writer
data manipulation language
query language
None of the above
Explanation:
The correct answer to the question is: transaction log
Q.
A data dictionary is a special file that contains
None of the above
All of the above
the data types of all fields in all files
the widths of all fields in all files
the names of all fields in all files
Explanation:
The correct answer to the question is: All of the above
Q.
Queries to a database
can use aggregate functions like SUM and COUNT
are written in English
All of the above
None of the above
both (a) and (b)
Explanation:
The correct answer to the question is: can use aggregate functions like SUM and COUNT
Q.
A race condition occurs when
All of the above
two users of the DBMS are interacting with different files at the same time
None 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?
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
COMPILE PROCEDURE
ALTER PROCEDURE
None of the above
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?
4th Dimension
FoxPro
dBASE IV
None of the above
Reflex
Explanation:
The correct answer to the question is: Reflex
Q.
A list in alphabetical order
both (b) and (c)
None of the above
is the result of a sort operation
is in ascending order
is in descending 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
establishes an index for a file
None of the above
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.
Distributed database
Relational database
Network database
Hierarchical database
None of the above
Explanation:
The correct answer to the question is: Network database
Q.
A compound key
uniquely identifies an item in a list
None of the above
is a combination of each unique key
is made up a several pieces of information
both (a) and (b)
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
All of the above
the contents of the form can be printed
None of the above
the contents of the form are 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?
lack of data independence
data redundancy
All of the above
difficult to update
program dependence
Explanation:
The correct answer to the question is: All of the above
Q.
Characteristic(s) of a distributed MIS structure is
a multiprocessing environment
None of the above
All of the above
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.
Object-Oriented
Hierarchical
Relational
Network
None of the above
Explanation:
The correct answer to the question is: Relational
Q.
A command that lets you change one or more fields in a record is
Look-up
All of the above
None of the above
Insert
Modify
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
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
Records
File structure
Fields
Database
Explanation:
The correct answer to the question is: File structure
Q.
In SQL, which command is used to add a column/integrity constraint to a table
ADD COLUMN
None of the above
ALTER TABLE
INSERT COLUMN
MODIFY TABLE
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
the result of the calculations are printed in report
All of the above
the calculations are stored with the form
None of the above
Explanation:
The correct answer to the question is: the calculations are stored with the form
Q.
A number of related records that are treated as a unit is called
data
None of the above
file
field
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 file
None of the above
database
data field
data record
Explanation:
The correct answer to the question is: data field
Q.
A computer file contains several records. What does each record contain?
Fields
Bytes
Database
Words
None of the above
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
data record
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
Modify
All of the above
Look-up
None of the above
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
mouse
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?
DELETE
SELECT
CREATE
None of the above
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
MODIFY TABLE
DEFINE TABLE
ALTER TABLE
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 ALL FROM BOOK
None of the above
All of the above
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?
None of the above
data dictionary and query language
data dictionary and transaction log
data manipulation language and query language
query language and utilities
Explanation:
The correct answer to the question is: data dictionary and transaction log
Q.
A form can be used to
None of the above
format printed output
delete records
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.
Network database
Hierarchical database
None of the above
Distributed database
Relational database
Explanation:
The correct answer to the question is: Hierarchical database
Q.
Long-range planning report produced in an MIS are primarily designed for
lower management
All of the above
None of the above
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
BPL
None of the above
AUTOFLOW
FORTRAN
TOTAL
Explanation:
The correct answer to the question is: BPL
Q.
The _____ command is used to allocates an extent for the table in SQL
None of the above
MODIFY ALLOCATES
REDEFINE TABLE
MODIFY TABLE
ALTER TABLE
Explanation:
The correct answer to the question is: MODIFY ALLOCATES
Q.
In SQL, which command(s) is(are) used to enable/disable a database trigger?
ALTER TABLE
MODIFY TRIGGER
All of the above
ALTER TRIGGER
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
a sequential file
a hashed file
None of the above
an indexed file
a tree file
Explanation:
The correct answer to the question is: a hashed file
Q.
A large computer information system maintains many different computer files. Which amongst them is called a perpetual file?
Master file
Log file
None of the above
Specialized file
Update file
Explanation:
The correct answer to the question is: Master file
Q.
In SQL, the CREATE TABLE is used
All of the above
to add a column/integrity constraint to a table
to change a table's storage characteristics
to redefine a column
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
All of the above
you look at each form sequentially until you see the one you want
None of the above
you type the key in an entry line, and the correct form is displayed
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
None of the above
All of the above
hardware failure
privacy invasion
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
All of the above
None of the above
CREATE USER
MK USER
Explanation:
The correct answer to the question is: CREATE USER
Q.
An audit trail
is used to make back-up copies
All of the above
is the recorded history of operations performed on a file
can be used to restore lost information
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
Schema
None of the above
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
None of the above
Hierarchical schema
Network schema
Relational 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
All of the above
an increase in the amount of data handled by organizations
None of the above.
a demand for more data to support information needs
the proliferation of data files
Explanation:
The correct answer to the question is: All of the above
Q.
Which language has recently become the de-facto standard for interfacing application programs with relational database system?
SQL
None of the above
dBASE
Oracle
4GL
Explanation:
The correct answer to the question is: SQL
Q.
In SQL, the CREATE TABLESPACE is used
to create a database trigger
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
None of the above
to add/rename data files, to change storage
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-one relationship
Many-to many relationship
None of the above
One-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
to begin/end a backup
to change storage characteristics
to take a tablespace online/offline
All of the above
Explanation:
The correct answer to the question is: All of the above
Q.
Which command(s) is(are) used to redefine a column of the table in SQL ?
DEFINE TABLE
MODIFY TABLE
ALTER TABLE
All of the above
None of the above
Explanation:
The correct answer to the question is: ALTER TABLE
Q.
Which command is used to remove an index from the database in SQL?
None of the above
DELETE INDEX
ROLL BACK INDEX
REMOVE 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.
Object-Oriented
Network
Distributed
None of the above
Hierarchical
Explanation:
The correct answer to the question is: Object-Oriented
Q.
With respect to data input, the most accurate description of batch control is
None of the above
controlling the input of each input clerk
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
All of the above
Explanation:
The correct answer to the question is: comparing to a pre-calculated figure the total of a data item summed across a batch records put into the system
Q.
A set of programs that handle a firm's data base responsibilities is called a
Data Management System (DMS)
Data Base Management System (DBMS)
None of the above
All of the above
Data Base Processing System (DBPS)
Explanation:
The correct answer to the question is: All of the above
Q.
In a relational schema, each tuple is divided into fields called
All of the above
Relations
Domains
None of the above
Queries
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
ability to associate related data
All of the above are advantages
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-one relationship
Many-to-many relationship
One-to-many 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?
None of the above
ERASE TABLE
UNATTACH TABLE
DELETE TABLE
DROP TABLE
Explanation:
The correct answer to the question is: DROP TABLE
Q.
When using a database management system, the first thing that you must do is to
create a database file
keep a floppy disk in readiness
None of the above
activate file editor
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
record
None of the above
string
list
title
Explanation:
The correct answer to the question is: record
Q.
Data item characteristics that are important in data management include
None of the above
punctuation
width
spelling
language
Explanation:
The correct answer to the question is: width
Q.
Sort/report generators
require more disk space than index/report generators
do not need to sort before generating a report
both (a) and (b)
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
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
None of the above
Explanation:
The correct answer to the question is: only one owner but many owner occurrences
Q.
The master list of an indexed file
both (b) and (c)
has a number assigned to each record
None of the above
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
None of the above
data
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.
None of the above
Index
Sort key
Delete
Update
Explanation:
The correct answer to the question is: Update
Q.
In a large DBMS
None of the above
each user can "see" only a small part of the entire database
All of the above
each subschema contains every field in the logical schema
each user can access every sub
Explanation:
The correct answer to the question is: each user can "see" only a small part of the entire database
Q.
The index consists of
None of the above
pointers to the master list
a list of keys
both (a) and (b)
All of the above
Explanation:
The correct answer to the question is: both (a) and (b)
Q.
A network schema
stores data in tables
permits many-to-many relation
restricts the structure to a one-to-many relationship
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?
CREATE SAME
CREATE SCHEMA
All of the above
CREATE SYNONYM
None of the above
Explanation:
The correct answer to the question is: CREATE SYNONYM
Q.
The database administration function includes
database access planning
computer operations management
All of the above
application programming
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
None of the above
change the width of a field
correct spelling changes before they are recorded
change the name of a field
All of the above
Explanation:
The correct answer to the question is: correct spelling changes before they are recorded
Q.
What name is given to the collection of facts, items of information or data which are related in some way?
Information tree
Database
Information provider
None of the above
Directory information
Explanation:
The correct answer to the question is: Database
Q.
A database management system
is a collection of programs for managing data in a single file
None of the above
can do more than a record management system
allows simultaneous access to multiple files
both (a) and (b)
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 field in common
both (b) and (c)
None of the above
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.
None of the above
One-to-one relationship
Many-to-one relationship
One-to-many relationship
Many-to-many relationship
Explanation:
The correct answer to the question is: One-to-one relationship
Q.
Versatile report generators can provide
Columnar totals
Calculations
None of the above
Subtotals
All 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
tree
None of the above
network
relational
Explanation:
The correct answer to the question is: tree
Q.
If you want to group the records in the abc database, you could use the Jobcode as the _____.
Update
Index
None of the above
Sort Key
Delete
Explanation:
The correct answer to the question is: Sort Key
Q.
Which of the following is a database administrator's function?
performance monitoring
All of the above
backing up the database
database design
user coordination
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
Print
Look-up
All of the above
Explanation:
The correct answer to the question is: Look-up
Q.
A logical schema
describes how data is actually stored on disk
is a standard way of organizing information into accessible parts
is the entire database
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
a large computer system is available
All of the above
only a few transactions are involved
only a small 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
Flat File
None of the above
Table
Database
Explanation:
The correct answer to the question is: Database
Q.
Updating a database means
revising the file structure
reorganizing the database
None of the above
modifying or adding record occurrences
All of the above
Explanation:
The correct answer to the question is: modifying or adding record occurrences
Q.
Sophisticated report generators can
perform arithmetic operations
None of the above
All of the above
selectively retrieve and print portions of a list
print row-oriented reports
Explanation:
The correct answer to the question is: All of the above
Q.
A scheme describes
record relationships
None of the above
records and files
data elements
All of the above
Explanation:
The correct answer to the question is: All of the above
Q.
The data dictionary tells the DBMS
None of the above
what attribute are possessed by the data
All of the above
what files are in the database
what these files contain
Explanation:
The correct answer to the question is: All of the above
Q.
Embedded pointer provide
All of the above
a secondary access path
None 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
None of the above
ALTER INDEX
REDEFINE INDEX
MODIFY INDEX
Explanation:
The correct answer to the question is: ALTER INDEX
Q.
Related fields in a data base are grouped to form
data file
bank
None of the above
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 will be the dominant data base of the future
It is conceptually simple
None of the above
It is a physical representation of the data
Explanation:
The correct answer to the question is: It allows a many-to-many relationship
Q.
In SQL, which command is used to select data in rows and column from one or more tables?
None of the above
BROWSE
SELECT
LIST
CHOOSE
Explanation:
The correct answer to the question is: SELECT
Q.
A data dictionary doesn't provide information about:
It will be the dominant data base of the future
the size of the disk storage device
It is conceptually simple
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
exception report
on demand report
forecasting report
None of the above
regularly scheduled report
Explanation:
The correct answer to the question is: on demand report
Q.
A form defines
All of the above
where data is placed on the screen
None of the above
both (a) and (b)
the width of each field
Explanation:
The correct answer to the question is: both (a) and (b)
Q.
A file produced by a spreadsheet
All of the above
None of the above
is generally stored on disk in an ASCII text format
can be used as it by the DBMS
can be used for graphic
Explanation:
The correct answer to the question is: is generally stored on disk in an ASCII text format
Q.
The data-base environment has all of the following components except:
None of the above
data base
separate files
data-base administrator
users
Explanation:
The correct answer to the question is: separate files
Q.
Internal auditors should review data system design before they are
modified
All of the above
implemented
developed
None 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
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?
ERASE FUNCTION
None of the above
DROP FUNCTION
DELETE FUNCTION
REMOVE FUNCTION
Explanation:
The correct answer to the question is: DROP FUNCTION
Q.
In the DBM approach, application programs perform the
storage function
All of the above
processing functions
access control
None of the above
Explanation:
The correct answer to the question is: processing functions
Q.
In SQL, which command(s) is(are) used to enable/disable all triggers on a table?
All of the above
ALTER TRIGGERS
None of the above
MODIFY TRIGGERS IN TABLE
ALTER TABLE
Explanation:
The correct answer to the question is: ALTER TABLE
Q.
Which of the following is a type of DBMS software?
query language
All of the above
utilities
database manipulation language
report writer
Explanation:
The correct answer to the question is: database manipulation language
Q.
In SQL, which command is used to make permanent changes made by statements issue since the beginning of a transaction?
SAVE
ZIP
PACK
None of the above
COMMIT
Explanation:
The correct answer to the question is: COMMIT
Q.
A relational database management (RDBM) package manages data in more than one file at once. How does it organize these file? As
None of the above
tuple
tables
both (a) and (b)
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
the pin code
a compound key consisting of the first name and the last name
All of the above
the last name
None of the above
Explanation:
The correct answer to the question is: a compound key consisting of the first name and the last name
Q.
Periodically adding, changing and deleting file records is called file
restructuring
renewing
None of the above
Updating
upgrading
Explanation:
The correct answer to the question is: Updating
Q.
A ____ Contains the smallest unit of meaningful data, so you might call it the basic building block for a data file.
Records
None of the above
File structure
Database
Fields
Explanation:
The correct answer to the question is: Fields
Q.
In SQL, the _____ command is used to recompile a view
DEFINE VIEW
CREATE VIEW
ALTER VIEW
COMPILE VIEW
None of the above
Explanation:
The correct answer to the question is: ALTER VIEW
Q.
If a piece of data is stored in two places in the database, then
None of the above
both (a) and (b)
changing the data is one spot will cause data inconsistency
storage space is wasted
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?
None of the above
EMMS
FMS
DBMS
DASD
Explanation:
The correct answer to the question is: DBMS
Q.
The way a particular application views the data from the data base that the application uses is a :