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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 UNIQUE
SELECT DISTINCT
SELECT DIFFERENT
None of the above
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?
creating and maintaining the data dictionary
creating the physical and logical designs
removing flagged records for deletion
monitoring performance
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?
chain
tree
network
All of the above
relational
Explanation:
The correct answer to the question is: chain
Q.
In SQL, which command is used to changes data in a table?
UPDATE
APPEND
BROWSE
INSERT
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
all the fields of master table
more rows than the original table
None of the above
Explanation:
The correct answer to the question is: None of the above
Q.
A file that is organized in uniform format is formally referred to as a _____ or a database file.
Database
Document
None of the above
Structured data file
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.
is a measure of the percentage of existing records updated during a run
if high, reduces processing efficiency for sequential and nonsequential files
is a low percentages of number of records added or deleted from a file
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 create a trigger
to recompile view
to recompile a table
None of the above
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
DML
None of the above
query language
DDL
All of the above
Explanation:
The correct answer to the question is: DML
Q.
The distinguishable parts of a record are called
data
database
fields
None of the above
files
Explanation:
The correct answer to the question is: fields
Q.
Large collections of files are called
records
file system
fields
databases
None of the above
Explanation:
The correct answer to the question is: databases
Q.
A report generator is used to
update files
All of the above
None of the above
print files on paper
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
access them
arrange them
create them
store information together
None of the above
Explanation:
The correct answer to the question is: store information together
Q.
In SQL, GRANT command is used to
grant system privileges, roles, and object privileges to uses and roles
allow user to access databases
allow user to create databases
None of the above
choose auditing for specific SQL commands
Explanation:
The correct answer to the question is: grant system privileges, roles, and object privileges to uses and roles
Q.
The relational model uses some unfamiliar terminology. A tuple is equivalent to a:
data base
file
data item
field
record
Explanation:
The correct answer to the question is: record
Q.
Data encryption techniques are particularly useful for
improving data integrity
All of the above
reducing storage space requirements
None of the above
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?
There is common sharing of data among the various applications
It is inflexible
It is file-oriented
Programs are dependent on the files
All of the above are true
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
a business form
a Rolodex card file
None of the above
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
None of the above
hierarchical MIS structure
distributed MIS structure
decentralized MIS structure
Explanation:
The correct answer to the question is: centralized MIS structure
Q.
In order to use a record management system
Both (a) and (b)
None of the above
You need to understand the low-level details of how information in stored
All of the above
You need to understand the model the record management system uses.
Explanation:
The correct answer to the question is: You need to understand the model the record management system uses.
Q.
A _____ Contains fields of data about one entity.
Fields
Record
None of the above
Document
File
Explanation:
The correct answer to the question is: Record
Q.
In SQL, which command is used to add new rows to a table?
INSERT
APPEND
ADD ROW
ALTER TABLE
None of the above
Explanation:
The correct answer to the question is: INSERT
Q.
Which of the following is not characteristic of a relational database model?
treelike structure
records
None of the above
complex logical relationships
tables
Explanation:
The correct answer to the question is: treelike structure
Q.
Which of the following contains a complete record of all activity that affected the contents of a database during a certain period of time?
None of the above
transaction log
report writer
data manipulation language
query language
Explanation:
The correct answer to the question is: transaction log
Q.
A data dictionary is a special file that contains
All of the above
None of the above
the widths of all fields in all files
the names of all fields in all files
the data types of all fields in all files
Explanation:
The correct answer to the question is: All of the above
Q.
Queries to a database
None of the above
both (a) and (b)
are written in English
can use aggregate functions like SUM and COUNT
All of the above
Explanation:
The correct answer to the question is: can use aggregate functions like SUM and COUNT
Q.
A race condition occurs when
Two concurrent activities interact to cause a processing error
two users of the DBMS are interacting with different files at the same time
All of the above
both (a) and (b)
None of the above
Explanation:
The correct answer to the question is: Two concurrent activities interact to cause a processing error
Q.
What is the name given to the database management system which is able to handle full text data, image data, audio and video?
Hypertext
Multimedia
None of the above
Graphics media
Full 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?
COMPILE PROCEDURE
MODIFY PROCEDURE id) All of the above
None of the above
ALTER PROCEDURE
None of the above
Explanation:
The correct answer to the question is: ALTER PROCEDURE
Q.
Which of the following is not a relational database?
dBASE IV
FoxPro
Reflex
None of the above
4th Dimension
Explanation:
The correct answer to the question is: Reflex
Q.
A list in alphabetical order
both (b) and (c)
is in ascending order
is the result of a sort operation
is in descending order
None of the above
Explanation:
The correct answer to the question is: both (b) and (c)
Q.
An indexing operation
both (b) and (c)
None of the above
sorts file using two keys
sorts a file using a single key
establishes an index for a file
Explanation:
The correct answer to the question is: establishes an index for a file
Q.
The model for a _____ resembles the hierarchical model in many respects.
Hierarchical database
Relational database
None of the above
Distributed database
Network database
Explanation:
The correct answer to the question is: Network database
Q.
A compound key
uniquely identifies an item in a list
is made up a several pieces of information
None of the above
both (a) and (b)
is a combination of each unique key
Explanation:
The correct answer to the question is: both (a) and (b)
Q.
When you have finished entering information into a form
the contents of the form can be printed
the template is written to the data file
All of the above
the contents of the form are written to the data file
None of the above
Explanation:
The correct answer to the question is: the contents of the form are written to the data file
Q.
Which of the following is a serious problem of file management systems?
program dependence
data redundancy
All of the above
lack of data independence
difficult to update
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
interactive sharing of the workload
a multiprocessing environment
All of the above
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
Relational
None of the above
Hierarchical
Network
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
Look-up
None of the above
Modify
All 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?
None of the above
SQL
Query language
High level language
4GL
Explanation:
The correct answer to the question is: Query language
Q.
Each of data files has a _____ that describe the way the data is stored in the file.
Fields
Records
File structure
None of the above
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
INSERT COLUMN
MODIFY TABLE
None of the above
ALTER TABLE
ADD 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
None of the above
the calculations are stored with the form
All 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
data
field
batch
file
None of the above
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
database
data record
None of the above
data field
Explanation:
The correct answer to the question is: data field
Q.
A computer file contains several records. What does each record contain?
Fields
Words
Bytes
Database
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
None of the above
database
data record
data file
Explanation:
The correct answer to the question is: database
Q.
An operation that will increase the length of a list is
Insert
None of the above
Modify
Look-up
All 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?
mouse
high speed, large-capacity disk
plotter
printer
high-resolution video display
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
CREATE
UPDATE
SELECT
DELETE
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?
All of the above
MODIFY TABLE
None of the above
DEFINE TABLE
ALTER TABLE
Explanation:
The correct answer to the question is: ALTER TABLE
Q.
Which command is used to select distinct subject (SUB) from the table (BOOK)?
None of the above
SELECT DISTINCT SUB FROM BOOK
SELECT SUB FROM BOOK
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?
query language and utilities
data manipulation language and query language
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
None of the above
delete records
All of the above
modify records
format printed output
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
Relational database
Distributed database
Explanation:
The correct answer to the question is: Hierarchical database
Q.
Long-range planning report produced in an MIS are primarily designed for
middle management
top management
lower management
None of the above
All of the above
Explanation:
The correct answer to the question is: top management
Q.
A database management system might consist of application programs and a software package called
TOTAL
FORTRAN
AUTOFLOW
None of the above
BPL
Explanation:
The correct answer to the question is: BPL
Q.
The _____ command is used to allocates an extent for the table in SQL
MODIFY TABLE
None of the above
MODIFY ALLOCATES
ALTER TABLE
REDEFINE TABLE
Explanation:
The correct answer to the question is: MODIFY ALLOCATES
Q.
In SQL, which command(s) is(are) used to enable/disable a database trigger?
ALTER TABLE
All of the above
ALTER TRIGGER
MODIFY 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 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?
Update file
None of the above
Specialized file
Log file
Master 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
All of the above
to create a table, defining its columns, integrity constrains, and storage allocation
to add a column/integrity constraint to a table
to redefine a column
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
you enter the search value into the form
you look at each form sequentially until you see the one you want
All of the above
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
privacy invasion
All of the above
hardware failure
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?
All of the above
MK USER
None of the above
ADD USER TO DATABASE
CREATE USER
Explanation:
The correct answer to the question is: CREATE USER
Q.
An audit trail
can be used to restore lost information
is used to make back-up copies
is the recorded history of operations performed on a file
All of the above
None of the above
Explanation:
The correct answer to the question is: is the recorded history of operations performed on a file
Q.
The files stored on a secondary stage device are composed of a hierarchy of data. What does a record in a file contain?
None of the above
Schema
Characters
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
All of the above
Relational schema
Hierarchical schema
Network schema
Explanation:
The correct answer to the question is: Hierarchical schema
Q.
A condition that led to the development of databases was
a demand for more data to support information needs
the proliferation of data files
None of the above.
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?
None of the above
SQL
Oracle
dBASE
4GL
Explanation:
The correct answer to the question is: SQL
Q.
In SQL, the CREATE TABLESPACE is used
to create a database trigger
None of the above
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
All 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
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-many relationship
Q.
In SQL, the ALTER TABLESPACE command is used
to add/rename data files
to take a tablespace online/offline
to begin/end a backup
to change storage characteristics
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 ?
MODIFY TABLE
All of the above
ALTER TABLE
None of the above
DEFINE TABLE
Explanation:
The correct answer to the question is: ALTER TABLE
Q.
Which command is used to remove an index from the database in SQL?
DELETE INDEX
DROP INDEX
REMOVE INDEX
ROLL BACK INDEX
None of the above
Explanation:
The correct answer to the question is: DROP INDEX
Q.
If you want your database to include methods, you should use a _____ database.
Hierarchical
Object-Oriented
None of the above
Network
Distributed
Explanation:
The correct answer to the question is: Object-Oriented
Q.
With respect to data input, the most accurate description of batch control is
None of the above
controlling the input of each input clerk
All of the above
comparing to a pre-calculated figure the total of a data item summed across a batch records put into the system
dividing documents to be entered into batches
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 Management System (DBMS)
None of the above
Data Base Processing System (DBPS)
Data Management System (DMS)
All of the above
Explanation:
The correct answer to the question is: All of the above
Q.
In a relational schema, each tuple is divided into fields called
All of the above
None of the above
Relations
Domains
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
program/data independence
ability to associate related data
All of the above are advantages
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
One-to-one relationship
Many-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
UNATTACH TABLE
DELETE TABLE
None of the above
ERASE TABLE
Explanation:
The correct answer to the question is: DROP TABLE
Q.
When using a database management system, the first thing that you must do is to
load the software into your micro
create a database file
None of the above
keep a floppy disk in readiness
activate file editor
Explanation:
The correct answer to the question is: load the software into your micro
Q.
Data items grouped together for storage purposes are called a
record
None of the above
string
title
list
Explanation:
The correct answer to the question is: record
Q.
Data item characteristics that are important in data management include
spelling
language
width
None of the above
punctuation
Explanation:
The correct answer to the question is: width
Q.
Sort/report generators
require more disk space than index/report generators
None of the above
are faster than index/report generators
do not need to sort before generating a report
both (a) and (b)
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
None of the above
only one member but many member occurrence
All of the above
only one owner but many owner occurrences
Explanation:
The correct answer to the question is: only one owner but many owner occurrences
Q.
The master list of an indexed file
contains only a list of keys and record numbers
both (b) and (c)
None of the above
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
filed designators
prompts
data
None of the above
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
Sort key
Index
Update
Delete
Explanation:
The correct answer to the question is: Update
Q.
In a large DBMS
each user can "see" only a small part of the entire database
All of the above
None 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
a list of keys
All of the above
None of the above
both (a) and (b)
pointers to the master list
Explanation:
The correct answer to the question is: both (a) and (b)
Q.
A network schema
stores data in tables
All of the above
None of the above
permits many-to-many relation
restricts the structure to a one-to-many relationship
Explanation:
The correct answer to the question is: permits many-to-many relation
Q.
In SQL, which command(s) is(are) used to create a synonym for a schema object?
CREATE SCHEMA
None of the above
All of the above
CREATE SYNONYM
CREATE SAME
Explanation:
The correct answer to the question is: CREATE SYNONYM
Q.
The database administration function includes
computer operations management
application programming
database access planning
None of the above
All 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
All of the above
change the width of a field
correct spelling changes before they are recorded
change the name of a field
None of the above
Explanation:
The correct answer to the question is: correct spelling changes before they are recorded
Q.
What name is given to the collection of facts, items of information or data which are related in some way?
Database
Information tree
Information provider
Directory information
None of the above
Explanation:
The correct answer to the question is: Database
Q.
A database management system
both (a) and (b)
None of the above
can do more than a record management system
allows simultaneous access to multiple files
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 a field in common
they have a row in common
None of the above
both (b) and (c)
they have no records with the same value in the common field
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-many relationship
One-to-one relationship
One-to-many relationship
Many-to-one relationship
None of the above
Explanation:
The correct answer to the question is: One-to-one relationship
Q.
Versatile report generators can provide
All of the above
None of the above
Calculations
Subtotals
Columnar totals
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 :
network
tree
relational
chain
None of the above
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 _____.
Index
Sort Key
Delete
Update
None of the above
Explanation:
The correct answer to the question is: Sort Key
Q.
Which of the following is a database administrator's function?
user coordination
All of the above
database design
backing up the database
performance monitoring
Explanation:
The correct answer to the question is: All of the above
Q.
Primitive operations common to all record management systems include
Look-up
Print
Sort
None of the above
All of the above
Explanation:
The correct answer to the question is: Look-up
Q.
A logical schema
None of the above
is a standard way of organizing information into accessible parts
All of the above
is the entire database
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
All of the above
None of the above
only a few transactions are involved
only a small computer system is available
a large computer system is available
Explanation:
The correct answer to the question is: None of the above
Q.
It is more accurate to define a _____ as a variety of different record types that are treated as a single unit
Flat File
None of the above
Database
Record
Table
Explanation:
The correct answer to the question is: Database
Q.
Updating a database means
None of the above
revising the file structure
modifying or adding record occurrences
reorganizing the database
All of the above
Explanation:
The correct answer to the question is: modifying or adding record occurrences
Q.
Sophisticated report generators can
perform arithmetic operations
print row-oriented reports
None of the above
selectively retrieve and print portions of a list
All of the above
Explanation:
The correct answer to the question is: All of the above
Q.
A scheme describes
data elements
All of the above
None of the above
records and files
record relationships
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
a physical record key
All of the above
None of the above
an inverted index
a secondary access path
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
ALTER INDEX
DO INDEX
None of the above
MODIFY INDEX
REDEFINE INDEX
Explanation:
The correct answer to the question is: ALTER INDEX
Q.
Related fields in a data base are grouped to form
data file
None of the above
data record
menu
bank
Explanation:
The correct answer to the question is: data record
Q.
Which of the following is true of a network structure?
It is conceptually simple
It allows a many-to-many relationship
None of the above
It is a physical representation of the data
It will be the dominant data base of the future
Explanation:
The correct answer to the question is: It allows a many-to-many relationship
Q.
In SQL, which command is used to select data in rows and column from one or more tables?
SELECT
LIST
None of the above
BROWSE
CHOOSE
Explanation:
The correct answer to the question is: SELECT
Q.
A data dictionary doesn't provide information about:
It is conceptually simple
the size of the disk storage device
where data is located
It will be the dominant data base of the future
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
on demand report
exception 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
None of the above
the width of each field
All of the above
where data is placed on the screen
both (a) and (b)
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
None of the above
is generally stored on disk in an ASCII text format
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:
users
data base
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
All of the above
developed
modified
implemented
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
identify the records in the list
identify the name, width and type of the fields of each record.
None of the above
All of the above
decide which fields will be used as sort or index keys
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
None of the above
ERASE FUNCTION
REMOVE FUNCTION
DELETE FUNCTION
Explanation:
The correct answer to the question is: DROP FUNCTION
Q.
In the DBM approach, application programs perform the
All of the above
storage function
None of the above
processing functions
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?
None of the above
All of the above
MODIFY TRIGGERS IN TABLE
ALTER TABLE
ALTER TRIGGERS
Explanation:
The correct answer to the question is: ALTER TABLE
Q.
Which of the following is a type of DBMS software?
utilities
report writer
database manipulation language
All of the above
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?
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
both (a) and (b)
relations
tables
None of the above
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
a compound key consisting of the first name and the last name
All of the above
the pin code
None of the above
the last name
Explanation:
The correct answer to the question is: a compound key consisting of the first name and the last name
Q.
Periodically adding, changing and deleting file records is called file
renewing
restructuring
Updating
upgrading
None of the above
Explanation:
The correct answer to the question is: Updating
Q.
A ____ Contains the smallest unit of meaningful data, so you might call it the basic building block for a data file.
None of the above
File structure
Fields
Records
Database
Explanation:
The correct answer to the question is: Fields
Q.
In SQL, the _____ command is used to recompile a view
None of the above
ALTER VIEW
DEFINE VIEW
COMPILE VIEW
CREATE VIEW
Explanation:
The correct answer to the question is: ALTER VIEW
Q.
If a piece of data is stored in two places in the database, then
both (a) and (b)
it can be more easily accessed
storage space is wasted
None of the above
changing the data is one spot will cause data inconsistency
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
None of the above
DASD
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 :