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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
None of the above
All of the above
SELECT DIFFERENT
SELECT DISTINCT
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?
monitoring performance
creating the physical and logical designs
removing flagged records for deletion
creating and maintaining the data dictionary
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?
network
All of the above
relational
chain
tree
Explanation:
The correct answer to the question is: chain
Q.
In SQL, which command is used to changes data in a table?
INSERT
UPDATE
BROWSE
APPEND
None of the above
Explanation:
The correct answer to the question is: UPDATE
Q.
The PROJECT command will create new table that has
more rows than the original table
None of the above
both (a) and (b)
all the fields of master table
more fields than the original table
Explanation:
The correct answer to the question is: None of the above
Q.
A file that is organized in uniform format is formally referred to as a _____ or a database file.
Database
None of the above
Structured data file
Record
Document
Explanation:
The correct answer to the question is: Structured data file
Q.
The activity of a file
is a low percentages of number of records added or deleted from a file
is a measure of the percentage of existing records updated during a run
refers to how closely the files fits into the allocated
None of the above.
if high, reduces processing efficiency for sequential and nonsequential files
Explanation:
The correct answer to the question is: is a low percentages of number of records added or deleted from a file
Q.
In SQL, the CREATE VIEW command is used
None of the above
to define a view of one or more tables or views
to create a trigger
to recompile a table
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
query language
All of the above
None of the above
DDL
DML
Explanation:
The correct answer to the question is: DML
Q.
The distinguishable parts of a record are called
files
fields
None of the above
data
database
Explanation:
The correct answer to the question is: fields
Q.
Large collections of files are called
file system
None of the above
records
fields
databases
Explanation:
The correct answer to the question is: databases
Q.
A report generator is used to
All of the above
data entry
print files on paper
None of the above
update files
Explanation:
The correct answer to the question is: print files on paper
Q.
The main idea behind computer files is that it is convenient to
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
None of the above
choose auditing for specific SQL commands
allow user to create databases
grant system privileges, roles, and object privileges to uses and roles
allow user to access 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:
file
data base
field
data item
record
Explanation:
The correct answer to the question is: record
Q.
Data encryption techniques are particularly useful for
All of the above
None of the above
reducing storage space requirements
improving data integrity
protecting data in data communication systems
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
There is common sharing of data among the various applications
It is file-oriented
Programs are dependent on the files
Explanation:
The correct answer to the question is: There is common sharing of data among the various applications
Q.
The model for a record management system might be
a business form
a Rolodex card file
All of the above
handwritten list
None of the above
Explanation:
The correct answer to the question is: All of the above
Q.
The Management Information system (MIS) structure with one main computer system is called a
decentralized MIS structure
centralized MIS structure
distributed MIS structure
hierarchical MIS structure
None of the above
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.
Both (a) and (b)
You need to understand the low-level details of how information in stored
None of the above
All of the above
Explanation:
The correct answer to the question is: You need to understand the model the record management system uses.
Q.
A _____ Contains fields of data about one entity.
None of the above
Fields
Record
File
Document
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
ALTER TABLE
None of the above
APPEND
Explanation:
The correct answer to the question is: INSERT
Q.
Which of the following is not characteristic of a relational database model?
tables
records
treelike structure
complex logical relationships
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?
data manipulation language
report writer
query language
transaction log
None of the above
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
All of the above
the data types of all fields in all files
the widths of all fields in all files
None of the above
Explanation:
The correct answer to the question is: All of the above
Q.
Queries to a database
are written in English
None of the above
All of the above
can use aggregate functions like SUM and COUNT
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
Two concurrent activities interact to cause a processing error
both (a) and (b)
All of the above
None of the above
two users of the DBMS are interacting with different files at the same time
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?
None of the above
Full media
Hypertext
Multimedia
Graphics media
Explanation:
The correct answer to the question is: Multimedia
Q.
Which of the following command(s) is(are) used to recompile a stored procedure in SQL?
None of the above
COMPILE PROCEDURE
None of the above
ALTER 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?
4th Dimension
FoxPro
None of the above
dBASE IV
Reflex
Explanation:
The correct answer to the question is: Reflex
Q.
A list in alphabetical order
is in descending order
both (b) and (c)
None of the above
is in ascending order
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 file using two keys
both (b) and (c)
sorts a file using a single key
None of the above
Explanation:
The correct answer to the question is: establishes an index for a file
Q.
The model for a _____ resembles the hierarchical model in many respects.
Hierarchical database
None of the above
Distributed database
Relational database
Network database
Explanation:
The correct answer to the question is: Network database
Q.
A compound key
both (a) and (b)
is a combination of each unique key
is made up a several pieces of information
uniquely identifies an item in a list
None of the above
Explanation:
The correct answer to the question is: both (a) and (b)
Q.
When you have finished entering information into a form
the template is written to the data file
the contents of the form can be printed
the contents of the form are written to the data file
None of the above
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
difficult to update
All of the above
data redundancy
program dependence
Explanation:
The correct answer to the question is: All of the above
Q.
Characteristic(s) of a distributed MIS structure is
computers supporting local DP operations
None of the above
All of the above
a multiprocessing environment
interactive sharing of the workload
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.
None of the above
Hierarchical
Network
Relational
Object-Oriented
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
All of the above
Look-up
Modify
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
4GL
Query language
SQL
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.
File structure
Records
Fields
Database
None of the above
Explanation:
The correct answer to the question is: File structure
Q.
In SQL, which command is used to add a column/integrity constraint to a table
MODIFY TABLE
INSERT COLUMN
ADD COLUMN
None of the above
ALTER 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 printed in report
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
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
batch
None of the above
field
file
Explanation:
The correct answer to the question is: file
Q.
In any hierarchy of data organization, the smallest entity to be processed as a single unit is called
database
data file
data record
data field
None of the above
Explanation:
The correct answer to the question is: data field
Q.
A computer file contains several records. What does each record contain?
Words
Fields
Database
None of the above
Bytes
Explanation:
The correct answer to the question is: Fields
Q.
The highest level in the hierarchy of data organization is called
data record
database
data file
data bank
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
Insert
Look-up
All of the above
None of the above
Modify
Explanation:
The correct answer to the question is: Insert
Q.
Which of the following hardware components is the most important to the operation of a database management system?
plotter
high-resolution video display
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?
None of the above
UPDATE
SELECT
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
None of the above
All of the above
DEFINE TABLE
MODIFY TABLE
Explanation:
The correct answer to the question is: ALTER TABLE
Q.
Which command is used to select distinct subject (SUB) from the table (BOOK)?
SELECT DISTINCT SUB FROM BOOK
SELECT ALL FROM BOOK
All of the above
None of the above
SELECT SUB FROM BOOK
Explanation:
The correct answer to the question is: SELECT DISTINCT SUB FROM BOOK
Q.
Which two files are used during operation of the DBMS?
data dictionary and transaction log
data dictionary and query language
query language and utilities
None of the above
data manipulation language and query language
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
None of the above
Network database
Hierarchical 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
middle management
top management
All of the above
lower management
Explanation:
The correct answer to the question is: top management
Q.
A database management system might consist of application programs and a software package called
None of the above
AUTOFLOW
FORTRAN
BPL
TOTAL
Explanation:
The correct answer to the question is: BPL
Q.
The _____ command is used to allocates an extent for the table in SQL
MODIFY ALLOCATES
ALTER TABLE
REDEFINE TABLE
MODIFY TABLE
None of the above
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
ALTER TRIGGER
MODIFY TRIGGER
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
a tree file
None of the above
an indexed file
a hashed file
a sequential 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
Master file
None of the above
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 add a column/integrity constraint to a table
to change a table's storage characteristics
to redefine a column
All of the above
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 enter the search value into the form
None of the above
you type the key in an entry line, and the correct form is displayed
All of the above
you look at each form sequentially until you see the one you want
Explanation:
The correct answer to the question is: you enter the search value into the form
Q.
Data security threats include
privacy invasion
None of the above
fraudulent manipulation of data
hardware failure
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?
CREATE USER
MK USER
None of the above
All of the above
ADD USER TO DATABASE
Explanation:
The correct answer to the question is: CREATE USER
Q.
An audit trail
is the recorded history of operations performed on a file
is used to make back-up copies
None of the above
can be used to restore lost information
All 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?
Schema
Characters
None of the above
Data field
Bits
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
Relational schema
Hierarchical schema
All of the above
Network schema
Explanation:
The correct answer to the question is: Hierarchical schema
Q.
A condition that led to the development of databases was
an increase in the amount of data handled by organizations
None of the above.
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?
4GL
None of the above
SQL
Oracle
dBASE
Explanation:
The correct answer to the question is: SQL
Q.
In SQL, the CREATE TABLESPACE is used
to add/rename data files, to change storage
All of the above
to create a 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
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
to begin/end a backup
to take a tablespace online/offline
All of the above
to change storage characteristics
to add/rename data files
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
ALTER TABLE
MODIFY 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?
ROLL BACK INDEX
None of the above
REMOVE 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.
Distributed
None of the above
Network
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
None of the above
dividing documents to be entered into batches
comparing to a pre-calculated figure the total of a data item summed across a batch records put into the system
All of the above
Explanation:
The correct answer to the question is: comparing to a pre-calculated figure the total of a data item summed across a batch records put into the system
Q.
A set of programs that handle a firm's data base responsibilities is called a
Data Base Processing System (DBPS)
All of the above
Data Base Management System (DBMS)
Data Management System (DMS)
None of the above
Explanation:
The correct answer to the question is: All of the above
Q.
In a relational schema, each tuple is divided into fields called
None of the above
Domains
All of the above
Relations
Queries
Explanation:
The correct answer to the question is: Domains
Q.
Which of the following is not an advantage of the data-base approach?
program/data independence
ability to associate related data
All of the above are advantages
elimination of the data redundancy
increased security
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
Many-to-many relationship
One-to-many relationship
Many-to-one relationship
One-to-one relationship
Explanation:
The correct answer to the question is: Many-to-many relationship
Q.
Which command is used to remove a table from the database in SQL?
DROP TABLE
ERASE TABLE
DELETE TABLE
None of the above
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
activate file editor
None of the above
create a database file
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
None of the above
list
title
string
record
Explanation:
The correct answer to the question is: record
Q.
Data item characteristics that are important in data management include
None of the above
language
spelling
punctuation
width
Explanation:
The correct answer to the question is: width
Q.
Sort/report generators
both (a) and (b)
do not need to sort before generating a report
are faster than index/report generators
require more disk space 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
only one member but many member occurrence
All of the above
None of the above
only one owner but many owner occurrences
more than one member but only one occurrence per member
Explanation:
The correct answer to the question is: only one owner but many owner occurrences
Q.
The master list of an indexed file
is sorted in ascending order
None of the above
has a number assigned to each record
both (b) and (c)
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
prompts
both (a) and (b)
filed designators
None of the above
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.
Delete
Sort key
None of the above
Index
Update
Explanation:
The correct answer to the question is: Update
Q.
In a large DBMS
each subschema contains every field in the logical schema
All of the above
each user can "see" only a small part of the entire database
each user can access every sub
None of the above
Explanation:
The correct answer to the question is: each user can "see" only a small part of the entire database
Q.
The index consists of
pointers to the master list
None of the above
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
All of the above
restricts the structure to a one-to-many relationship
permits many-to-many relation
stores data in tables
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 SYNONYM
CREATE SCHEMA
None of the above
All of the above
Explanation:
The correct answer to the question is: CREATE SYNONYM
Q.
The database administration function includes
None of the above
application programming
All of the above
database access planning
computer operations management
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
change the name of a field
All of the above
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?
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
can do more than a record management system
None of the above
allows simultaneous access to multiple files
both (a) and (b)
is a collection of programs for managing data in a single file
Explanation:
The correct answer to the question is: both (a) and (b)
Q.
Two files may be joined into a third file if
they have no records with the same value in the common field
they have a field in common
None of the above
both (b) and (c)
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.
Many-to-one relationship
None of the above
Many-to-many relationship
One-to-one relationship
One-to-many relationship
Explanation:
The correct answer to the question is: One-to-one relationship
Q.
Versatile report generators can provide
None of the above
Calculations
All of the above
Columnar totals
Subtotals
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
network
None of the above
chain
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 _____.
Delete
None of the above
Sort Key
Index
Update
Explanation:
The correct answer to the question is: Sort Key
Q.
Which of the following is a database administrator's function?
performance monitoring
backing up the database
user coordination
database design
All of the above
Explanation:
The correct answer to the question is: All of the above
Q.
Primitive operations common to all record management systems include
Print
Look-up
Sort
None of the above
All of the above
Explanation:
The correct answer to the question is: Look-up
Q.
A logical schema
All of the above
is the entire database
None of the above
describes how data is actually stored on disk
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
only a few transactions are involved
a large computer system is available
only a small computer system is available
All of the above
None 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
Database
Flat File
Table
None of the above
Record
Explanation:
The correct answer to the question is: Database
Q.
Updating a database means
revising the file structure
modifying or adding record occurrences
reorganizing the database
None of the above
All of the above
Explanation:
The correct answer to the question is: modifying or adding record occurrences
Q.
Sophisticated report generators can
selectively retrieve and print portions of a list
print row-oriented reports
perform arithmetic operations
All of the above
None of the above
Explanation:
The correct answer to the question is: All of the above
Q.
A scheme describes
None of the above
data elements
record relationships
All of the above
records and files
Explanation:
The correct answer to the question is: All of the above
Q.
The data dictionary tells the DBMS
what these files contain
None of the above
what attribute are possessed by the data
what files are in the database
All of the above
Explanation:
The correct answer to the question is: All of the above
Q.
Embedded pointer provide
a secondary access path
All of the above
an inverted index
a physical record key
None of the above
Explanation:
The correct answer to the question is: a secondary access path
Q.
In SQL, which command(s) is(are) used to redefine an index's future storage allocation
DO INDEX
ALTER INDEX
MODIFY INDEX
None of the above
REDEFINE 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
bank
None of the above
data record
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?
CHOOSE
SELECT
BROWSE
LIST
None of the above
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 is conceptually simple
It will be the dominant data base of the future
the size of the disk storage device
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
regularly scheduled report
None of the above
forecasting report
on demand report
Explanation:
The correct answer to the question is: on demand report
Q.
A form defines
the width of each field
None of the above
where data is placed on the screen
both (a) and (b)
All of the above
Explanation:
The correct answer to the question is: both (a) and (b)
Q.
A file produced by a spreadsheet
All of the above
can be used as it by the DBMS
is generally stored on disk in an ASCII text format
can be used for graphic
None of the above
Explanation:
The correct answer to the question is: is generally stored on disk in an ASCII text format
Q.
The data-base environment has all of the following components except:
None of the above
separate files
data base
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
None of the above
implemented
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
None of the above
decide which fields will be used as sort or index keys
identify the name, width and type of the fields of each record.
identify the records in the list
All of the above
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
None of the above
ERASE FUNCTION
REMOVE FUNCTION
Explanation:
The correct answer to the question is: DROP FUNCTION
Q.
In the DBM approach, application programs perform the
None of the above
storage function
processing functions
All of the above
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
ALTER TABLE
All of the above
ALTER TRIGGERS
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?
All of the above
database manipulation language
utilities
report writer
query language
Explanation:
The correct answer to the question is: database manipulation language
Q.
In SQL, which command is used to make permanent changes made by statements issue since the beginning of a transaction?
COMMIT
ZIP
SAVE
None of the above
PACK
Explanation:
The correct answer to the question is: COMMIT
Q.
A relational database management (RDBM) package manages data in more than one file at once. How does it organize these file? As
None of the above
tables
both (a) and (b)
relations
tuple
Explanation:
The correct answer to the question is: both (a) and (b)
Q.
A list consists of last names, first names, addresses, and pin codes if all people in the list have the same last and the same pin code, a useful key would be
the pin code
All of the above
the last name
a compound key consisting of the first name and 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
upgrading
Updating
renewing
None of the above
restructuring
Explanation:
The correct answer to the question is: Updating
Q.
A ____ Contains the smallest unit of meaningful data, so you might call it the basic building block for a data file.
Fields
None of the above
Records
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
DEFINE VIEW
CREATE VIEW
ALTER VIEW
COMPILE 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
both (a) and (b)
storage space is wasted
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?
FMS
EMMS
DBMS
DASD
None of the above
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 :