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📄 bookpublisher.html

📁 开耐饥梅陇大学 网上教程 ssd7 exercise1 和exercise4答案。 绝对 正确。 满分的答案。
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
 <HEAD>
  <TITLE> BookPublisher </TITLE>
  <META NAME="Generator" CONTENT="EditPlus">
  <META NAME="Author" CONTENT="DannyShum">
  <META NAME="Keywords" CONTENT="">
  <META NAME="Description" CONTENT="For Assignment">
 </HEAD>

 <BODY>
  <TABLE BORDER=1 WIDTH=100%> 
<THEAD> 
<TR> 
<TH>Primary Author</TH> 
<TH>Title(AK)</TH> 
<TH>ISBN(PK)</TH> 
<TH>PubID(FK)</TH> 
<TH>Edition</TH> 
<TH>DateofPublication</TH> 
<TH>Price</TH> 
<TH>BookDes</TH> 
</TR> 
</THEAD> 
<TBODY> 
<TR> 
<TD>Domain: a character string  Format:name</TD> 
<TD>Domain: string  </TD> 
<TD>Domain: a character string  Format:d-dddd-dddd-d</TD> 
<TD>Domain: a character string begin with a char  Format:Cddd</TD> 
<TD>Domain: a Positive Int(d)</TD> 
<TD>Domain: a character string  Format:dddd.dd.dd)</TD> 
<TD>Domain: a character string  Format:$*.*)</TD> 
<TD>Domain: a character string</TD> 
</TR> 
</TBODY> 
</TABLE>
<br>
  <TABLE BORDER=1 WIDTH=100%> 
<THEAD> 
<TR> 
<TH>PrimaryAuthor</TH> 
<TH>Title(AK)</TH> 
<TH>ISBN(PK)</TH> 
<TH>PublisherID(FK)</TH> 
<TH>Edition</TH> 
<TH>DateofPublication</TH> 
<TH>Price</TH> 
<TH>BookDescription</TH> 
</TR> 
</THEAD> 
<TBODY> 
<TR> 
<TD>DannyShum</TD> 
<TD>Thinking in Java</TD> 
<TD>7-5370-5289-0</TD> 
<TD>A001</TD> 
<TD>3</TD> 
<TD>1988.11.12</TD> 
<TD>$118.0</TD> 
<TD>For All Levels</TD> 
</TR> 
<TR> 
<TD>RollandQiu</TD> 
<TD>computer culter</TD> 
<TD>1-5636-5280-1</TD> 
<TD>A002</TD> 
<TD>2</TD> 
<TD>1990.3.24</TD> 
<TD>$49.9</TD> 
<TD>For Freshman</TD> 
</TR> 
<TR> 
<TD>LionLuo</TD> 
<TD>C++ primer</TD> 
<TD>3-33478-5280-2</TD> 
<TD>A003</TD> 
<TD>5</TD> 
<TD>1989.2.16</TD> 
<TD>$56.8</TD> 
<TD>For Professor</TD> 
</TR> 
<TR> 
<TD>JimmyLi</TD> 
<TD>uml</TD> 
<TD>3-4789-5246-3</TD> 
<TD>A004</TD> 
<TD>2</TD> 
<TD>1963.8.7</TD> 
<TD>$32.8</TD> 
<TD>For Freshman</TD> 
</TR> 
<TR> 
<TD>DannyShum</TD> 
<TD>operating System</TD> 
<TD>7-5436-5454-4</TD> 
<TD>A003</TD> 
<TD>3</TD> 
<TD>1952.4.18</TD> 
<TD>$46.8</TD> 
<TD>For Professor</TD> 
</TR> 
<TR> 
</TBODY> 
</TABLE>
<br>
<hr color=red ,size = 10,width=100%> 

<TABLE BORDER=1 WIDTH=100%> 
<THEAD> 
<TR> 
<TH>PubID(PK)</TH> 
<TH>Name</TH> 
<TH>Address</TH> 
</TR> 
</THEAD> 
<TBODY> 
<TR> 
<TD>Domain:A character string begin with a char  Format:Cddd</TD> 
<TD>A character string</TD> 
<TD>A character string</TD> 
 
</TR> 
</TABLE>

<br>

<TABLE BORDER=1 WIDTH=100%> 
<THEAD> 
<TR> 
<TH>PubID(PK)</TH> 
<TH>Name</TH> 
<TH>Address</TH> 
</TR> 
</THEAD> 
<TBODY> 
<TR> 
<TD>A001</TD> 
<TD>WAP</TD> 
<TD>BTU.ISS.CV </TD> 
 
</TR> 
<TR> 
<TD>A002</TD> 
<TD>KBSP</TD> 
<TD>HMC.ISS.Ch </TD> 

</TR> 
<TR> 
<TD>A003</TD> 
<TD>KKCP</TD> 
<TD>ULd.Ioc </TD> 

</TR> 
<TR> 
<TD>A004</TD> 
<TD>UIOP</TD> 
<TD>WHU.ISS.BB </TD> 
 
</TR> 

</TBODY> 
</TABLE>
<hr color=red ,size = 10,width=100%> 
<li>An AK has to uniquely identify a publisher. so there is no Ak in the table Publisher because there is no other column that can uniquely identify a publisher.</li>
<li><b>ISBN</b> and <b>PublisherID</b> are unique, so we can use them to identify a row,so they can be the primary key PK or Fk.</li>
 </BODY>
</HTML>

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