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Category > Computer Science Posted 11 Dec 2017 My Price 10.00

Database processing offers several advantages over

I need all the answers for theses questions. I upload the file.

Question        1         

Match  the       following        terms  and      definitions     

           

            

Question        2         

           

Database        processing     offers  several            advantages     over    traditional      file       processing.            One     advantage      is:       

                       

Databases       usually            store   small   amounts         of         specific           information   

Databases       totally eliminate        data     redundancy  

Databases       provide           for       data     independence           

Each    database         application     has      its        own     unique            data     file,      data     is         not            shared           

Databases       store   information    only     on        PCs,     making            data     more   accessible      

           

Question        3         

           

General           database         term    that     refers  to         the       organization  of         data     as        a            conceptual     framework;    how     a          database         is         constructed.   It          is         the            complete        logical view    of         a          database.       

                       

Dataset          

Database        schema          

Relational       table   

SQL     

DBMS 

           

Question        4         

           

________            is/are  raw     facts.  

           

A          DBMS 

Data   

Metadata       

Information   

Constraints    

           

Question        5         

                       

The      relational        data     model represents     data     in         the       form    of:       

           

Tables

Entity  instances       

Nodes and      branches       

Programs      

Unstructured data    

           

Question        6         

           

Which relational        term    is         synonymous  to         the       word   'column'?       

                       

Program        

Domain          

Relation         

Tuple 

Attribute        

           

Question        7         

           

           

                                                                                                            A          primary          key     

           

Question        8         

           

Given   the       tables  and      business         rule     shown,            what    is         the       column           dorm            considered     in         the       Student           table? 

A          foreign            key     

A          secondary      key     

A          composite      key     

A          primary          key     

           

Question        9         

           

A          distinguishing            feature            of         the       relational        data     model is         that:   

           

                       

Primary          keys    exist   

There  is         no        redundant      data    

All        tables  include            composite      keys   

Application     programs       cannot            be        written            to         access data               only     interactive            SQL     is         used    Relationships are      inherent         within the       data               there   are      no            explicit            linkages          between                                                                                 tables 

           

Question        10      

           

_________           occur  when   all        changes          in         redundant      data     are      not      made   correctly.           

           

Data    anomalies      

Domains        

Metadata       

Tuples

Attributes      

           

Question        11      

           

                       

Question        12      

           

                       

Question        13      

           

Which SQL     statement       corrrectly       uses    a          function          to         display            the       total            salary  of         all        employees?   

           

                       

display            total    salary()           of         employees;     list            count(salary);           

select   count(salary) from    employees;     display            add(salary)    from    employees;     select  sum(salary)            from    employees;    

           

Question        14      

           

In         SQL,     the       ___________        operator         is         another          method           of         using   OR            logic.  

           

           

IN       

           

OUT    

           

BETWEEN     

           

LIKE   

           

XOR    

           

Question        15      

           

In         SQL,     to         place   a          new     instance          (record)         into     a          relation           (table),            the       statement       used    is:       

           

insert  update            add      place            put     

           

           

Question        16      

           

This     keyword         is         used    in         SQL     expressions   to         select  partial values.                        It            is         used    with     wildcard         characters      (%       -),         which  represent       unknown            characters      in         a          pattern.          

           

                       

within  from   

like     

update            from   

           

Question        17      

           

Creating          an        ERD     (Entity Relationship   Diagram)        is         an        example          of:       

                       

SQL     

Normalization           

Creating          a          data     model to         represent       user    requirements

Designing       a          physical          database         model

Object-Oriented         Programming           

           

Question        18      

           

In         an        ERD,    these   are      attributes       that     name,  or        distinguish,     entity  instances.      

                       

Relations        or        tables 

Cardinality      constraints    

Raw     attributes      

Primary          keys    or        identifiers      

“crows-feet”  

           

Question        19      

           

Given   the       statement:                  create new     table    client(clientID            integer            primary            key,     firstName       varchar(20),  lastName        varchar(20));            

           

select   the       incorrect        syntax/error from    the       list       below:

           

create  new     primary          key            varchar(30)   table   

           

Question        20      

           

In         the       box      below, write   an        SQL     query  statement       that     shows all        of         the            data     in         a          table    called  bank.  

          

          

Question        21      

           

Given   a          table    called  inventory       that     contains          an        integer            field     called  inStock,            write   an        SQL     query  statement       in         the       box      below  that     shows all        of         the            data     contained       in         the       table    for       which  the       inStock            record            value   is            greater           than    100.    

                       

           

Question        22      

           

Given   a          table    called  account           that     contains          a          varchar           field     called            accountType  and      a          numeric          field     called  accountLimit, write   an        SQL     query            statement       that     shows the       data     for       just      these   two      fields   for       all        of         the            records           in         the       table    with     an        account           type     of         savings           and            that     have    a          limit     greater           than    $100,000.      

           

           

Question        23      

           

Given   a          table    called  movie  that     contains          a          field     called  movieName,   write   an            SQL     query  statement       that     shows all        of         the       data     contained       in         the            table    sorted by        movieName    (in       default            ascending       order).                       

           

           

           

           

           

Question         24       

           

Given a table calledbankthat has a 1:N relationship with a table calledcustomer, write an SQL query statement in the box below that shows a customer's last name and their associated bank name.

Note: Thebanktable contains the fields:bankName(a varchar field) andbankID(a numeric field that is a primary key). Thecustomertable contains the fields:customerLastName(a varchar field),customerID(a numeric field that is a primary key), andbankID(a numeric field that is a foreign key).

           

          

          

Question        25      

           

In         an        ERD,    this      specifies         the       number          of         instances        of         one      entity            that     are      associated      with     another.         

           

Primary          key     

Weak   entity 

Attribute        

Foreign           key     

Cardinality      constraint      

           

Question        26      

           

In         an        ERD,    a                      __________         describes        an        association     among            entities.           

                       

join      Object data     anomaly            cascade           Relationship  

           

Question        27      

           

A          ___________________        is         a          precise            description     of         a          policy, procedure,     or            principle         within a          specific           organization.              It          is         a          statement            that     defines            or        constrains      some   aspect of         the       business.       

                       

business         model database         table            business         rule     Dimension            Denormalized            relation          

           

           

Question        28      

           

           

           

Question        30      

           

This     is         a          standard         means for       defining          the       structure        of         documents            and      for       transmitting   documents     from    one      computer       to         another.          It          is            important       for       database         processing     because          it          provides         a            standardized  means of         submitting      data     to         a          database.       

           

HTML 

XML    

JavaFK           

DDL    

Vertical           fragmentation           

           

           

           

           

           

Question        31      

           

In         data     administration,          one      remedy           for       the       inconsistencies          caused            by            concurrent     processing     is         to         prevent           multiple          applications   from    obtaining            copies of         the       same   rows   or        tables  when   those   rows   or        tables  are      about  to            be        changed.         This     remedy           is         called:

                       

Encryption    

The      deadly embrace         Resource        locking           

Referential     integrity         

Legal   strategies      

           

           

Question        32      

           

Database        administration           includes          database         security                    the       process           of            protecting      the       database.        The     goal     of         database         security          is         to            ensure            that     only     authorized     users   can      perform          authorized     activities         at            authorized     times.  This     goal     is         usually            broken            down  into     two      parts: 

           

Authentication           and      authorization

Legal   strategies       and      encryption    

Resource        locking            and      the       deadly embrace        

Data    validation       and      data     consistency   

Locking           granularity     and      authorized     legal    actions           

           

Question        33      

           

Which SQL     command       is         used    to         undo   changes          made   by        a          transaction     to            the       database?      

                       

quit      undo   cancel rollback            close  

           

Question        34      

           

A          modeling        technique       used    to         represent       the       multi-dimensional     data     stored in            a          data     warehouse:   

                       

Data    dictionary      

Data    mine   

SQL      constraints    

Denormalization       

Star     schema          

           

Question        35      

           

Data    warehousing  is         a          paradigm        specifically     intended         to:       

           

Provide           vital     strategic         information   

Support          processing     of         business         transactions   Reduce            the       size      of         a          database        

provide           for       easy    updates          to         data     in         the       database        

Avoid  the       use      of         SQL    

           

Question        36      

           

Edgar F. Codd is regarded as the "father" of relational database theory.  Although he spent the majority of his working years in the U.S. as an employee of IBM, what English speaking European country was he born in?  (Hint:  it's part of the UK, but not Scotland, Wales, or

Northern Ireland.)

           

           

           

           

           

           

           

           

           

           

           

           

           

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Status NEW Posted 11 Dec 2017 02:12 PM My Price 10.00

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