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·</span><span lang="EN-US" style="font-size:10.0pt;font-family:
Arial;mso-bidi-font-family:"Times New Roman";color:black">StorageDataSet</span><span style="font-size:10.0pt;font-family:宋体;mso-hansi-font-family:Arial;color:black">类<span lang="EN-US"><o:p>
</o:p>
</span></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;
mso-bidi-font-family:"Times New Roman";color:black"> <span style="mso-tab-count:
1"> </span>StorageDataSet</span><span style="font-size:10.0pt;font-family:
宋体;mso-hansi-font-family:Arial;color:black">类可以使用内存空间来储藏数据<span lang="EN-US">.
</span></span><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;mso-bidi-font-family:"Times New Roman";
color:black">StoreDataSet</span><span style="font-size:10.0pt;font-family:宋体;
mso-hansi-font-family:Arial;color:black">类的储藏属性还可以被设定成一个</span><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;mso-bidi-font-family:"Times New Roman";
color:black">DateStore</span><span style="font-size:10.0pt;font-family:宋体;
mso-hansi-font-family:Arial;color:black">组件<span lang="EN-US">,以使得</span></span><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;mso-bidi-font-family:"Times New Roman";
color:black">DataSet</span><span style="font-size:10.0pt;font-family:宋体;
mso-hansi-font-family:Arial;color:black">中的数据持续下去<span lang="EN-US">.
</span></span><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;mso-bidi-font-family:"Times New Roman";
color:black">StorageDataSet</span><span style="font-size:10.0pt;font-family:
宋体;mso-hansi-font-family:Arial;color:black">类管理着储藏在</span><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;mso-bidi-font-family:"Times New Roman";
color:black">DataSet</span><span style="font-size:10.0pt;font-family:宋体;
mso-hansi-font-family:Arial;color:black">类中的数据<span lang="EN-US">.
索引被习惯性地用于维护对数据观察的变化,并且保持着列的形式.
所有关于结构的</span></span><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;
mso-bidi-font-family:"Times New Roman";color:black">API (</span><span style="font-size:10.0pt;font-family:宋体;mso-hansi-font-family:Arial;color:black">如<span lang="EN-US">:</span></span><span lang="EN-US" style="font-size:10.0pt;font-family:
Arial;mso-bidi-font-family:"Times New Roman";color:black">add/delete/change/move
column)</span><span style="font-size:10.0pt;font-family:宋体;mso-hansi-font-family:
Arial;color:black">的接口都在这个类中<span lang="EN-US">. 由于</span></span><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;mso-bidi-font-family:"Times New Roman";
color:black">StorageDataSets</span><span style="font-size:10.0pt;font-family:
宋体;mso-hansi-font-family:Arial;color:black">管理着数据<span lang="EN-US">,
像行的插入和删除都会自动被记录下来. 由于所有的关于</span></span><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;
mso-bidi-font-family:"Times New Roman";color:black">StorageDataSet</span><span style="font-size:10.0pt;font-family:宋体;mso-hansi-font-family:Arial;color:black">的变化都会被追踪<span lang="EN-US">,
所以在分析的过程中我们可以准确地知道应该做什么才能把这些变化保存到原先的数据中.<o:p>
</o:p>
</span></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:宋体;
mso-hansi-font-family:Arial;color:black"> </span><span lang="EN-US" style="font-size:10.0pt;font-family:Symbol;color:black">
</span><span style="font-size: 10.0pt; font-family: 宋体; color: black; mso-hansi-font-family: Arial" lang="EN-US">
</span><span lang="EN-US" style="font-size:10.0pt;font-family:Symbol;color:black">·</span><span lang="EN-US" style="font-size:10.0pt;font-family:
Arial;mso-bidi-font-family:"Times New Roman";color:black">JDataStore</span><span lang="EN-US" style="font-size:10.0pt;font-family:宋体;mso-hansi-font-family:Arial;
color:black"><o:p>
</o:p>
</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;
mso-bidi-font-family:"Times New Roman";color:black"><span style="mso-tab-count:
1"> </span>DataSet</span><span style="font-size:10.0pt;font-family:宋体;
mso-hansi-font-family:Arial;color:black">组件提供了高性能的数据储藏以及</span><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;mso-bidi-font-family:"Times New Roman";
color:black">dataExpress, DataSets, </span><span style="font-size:10.0pt;
font-family:宋体;mso-hansi-font-family:Arial;color:black">任意文件<span lang="EN-US">,
和</span></span><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;mso-bidi-font-family:"Times New Roman";
color:black">java</span><span style="font-size:10.0pt;font-family:宋体;
mso-hansi-font-family:Arial;color:black">对象的紧密连续性<span lang="EN-US">.
</span></span><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;mso-bidi-font-family:"Times New Roman";
color:black">DataStore</span><span style="font-size:10.0pt;font-family:宋体;
mso-hansi-font-family:Arial;color:black">组件使用一个文件来储藏一个或是多个数据流<span lang="EN-US">.
一个</span></span><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;
mso-bidi-font-family:"Times New Roman";color:black">JDataStore</span><span style="font-size:10.0pt;font-family:宋体;mso-hansi-font-family:Arial;color:black">文件有一个层次结构的文件目录结构<span lang="EN-US">.并且有一个特殊的数据流用于管理这些文件名和目录的状况.<o:p>
</o:p>
</span></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:宋体;
mso-hansi-font-family:Arial;color:black"> </span><span lang="EN-US" style="font-size:10.0pt;font-family:Symbol;color:black">·</span><span lang="EN-US" style="font-size:10.0pt;font-family:
Arial;mso-bidi-font-family:"Times New Roman";color:black">DataSetView</span><span lang="EN-US" style="font-size:10.0pt;font-family:宋体;mso-hansi-font-family:Arial;
color:black"><o:p>
</o:p>
</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;
mso-bidi-font-family:"Times New Roman";color:black"> </span><span style="mso-tab-count: 1; font-size: 10.0pt; font-family: Arial; mso-bidi-font-family: Times New Roman; color: black" lang="EN-US">
</span><span style="font-size:10.0pt;font-family:宋体;
mso-hansi-font-family:Arial;color:black">这个组件用于提供对行排序及过滤的独立浏览<span lang="EN-US">,
但他是不同于使用</span></span><span lang="EN-US" style="font-size:10.0pt;font-family:
Arial;mso-bidi-font-family:"Times New Roman";color:black">DataSet</span><span style="font-size:10.0pt;font-family:宋体;mso-hansi-font-family:Arial;color:black">组件的<span lang="EN-US">.
想使用这个组件的话,就要设置</span></span><span lang="EN-US" style="font-size:
10.0pt;font-family:Arial;mso-bidi-font-family:"Times New Roman";color:black">DataSetView</span><span style="font-size:10.0pt;font-family:宋体;mso-hansi-font-family:Arial;color:black">组件中</span><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;mso-bidi-font-family:"Times New Roman";
color:black">storageDataSet</span><span style="font-size:10.0pt;font-family:
宋体;mso-hansi-font-family:Arial;color:black">的属性<span lang="EN-US">.
你可以使用这个组件, 当多个组件需要动态转换成一个新的</span></span><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;mso-bidi-font-family:"Times New Roman";
color:black">DataSet. </span><span style="font-size:10.0pt;font-family:宋体;
mso-hansi-font-family:Arial;color:black">你可以把全部的组件放在同一个</span><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;mso-bidi-font-family:"Times New Roman";
color:black">DataSetView</span><span style="font-size:10.0pt;font-family:宋体;
mso-hansi-font-family:Arial;color:black">中<span lang="EN-US">.
这样就能使那些组件使用同一个新的</span></span><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;mso-bidi-font-family:"Times New Roman";
color:black">DataSet, DataSetView, storageDataSet</span><span style="font-size:
10.0pt;font-family:宋体;mso-hansi-font-family:Arial;color:black">的属性也能被改变<span lang="EN-US">.<o:p>
</o:p>
</span></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:宋体;
mso-hansi-font-family:Arial;color:black"> </span><span lang="EN-US" style="font-size:10.0pt;font-family:Symbol;color:black">
</span><span style="font-size: 10.0pt; font-family: 宋体; color: black; mso-hansi-font-family: Arial" lang="EN-US">
</span><span lang="EN-US" style="font-size:10.0pt;font-family:Symbol;color:black">·</span><span lang="EN-US" style="font-size:10.0pt;font-family:
Arial;mso-bidi-font-family:"Times New Roman";color:black">QueryDataSet</span><span lang="EN-US" style="font-size:10.0pt;font-family:宋体;mso-hansi-font-family:Arial;
color:black"><o:p>
</o:p>
</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:宋体;
mso-hansi-font-family:Arial;color:black"> </span><span style="mso-tab-count: 1; font-size: 10.0pt; font-family: Arial; mso-bidi-font-family: Times New Roman; color: black" lang="EN-US">
</span><span style="font-size:10.0pt;font-family:宋体;
mso-hansi-font-family:Arial;color:black">这是一个</span><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;mso-bidi-font-family:"Times New Roman";
color:black">JDBC</span><span style="font-size:10.0pt;font-family:宋体;
mso-hansi-font-family:Arial;color:black">的特殊</span><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;mso-bidi-font-family:"Times New Roman";
color:black">DataSet. </span><span style="font-size:10.0pt;font-family:宋体;
mso-hansi-font-family:Arial;color:black">他负责管理由</span><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;mso-bidi-font-family:"Times New Roman";
color:black">JDBC</span><span style="font-size:10.0pt;font-family:宋体;
mso-hansi-font-family:Arial;color:black">提供的数据<span lang="EN-US">.
被提供的数据定义了一个询问(</span></span><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;mso-bidi-font-family:"Times New Roman";
color:black">query</span><span lang="EN-US" style="font-size:10.0pt;font-family:
宋体;mso-hansi-font-family:Arial;color:black">)属性. 这个询问(</span><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;mso-bidi-font-family:"Times New Roman";
color:black">query</span><span lang="EN-US" style="font-size:10.0pt;font-family:
宋体;mso-hansi-font-family:Arial;color:black">)属性定义了一个</span><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;mso-bidi-font-family:"Times New Roman";
color:black">SQL</span><span style="font-size:10.0pt;font-family:宋体;mso-hansi-font-family:
Arial;color:black">语句<span lang="EN-US">.<o:p>
</o:p>
</span></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:宋体;
mso-hansi-font-family:Arial;color:black"> </span><span lang="EN-US" style="font-size:10.0pt;font-family:Symbol;color:black">·</span><span lang="EN-US" style="font-size:10.0pt;font-family:
Arial;mso-bidi-font-family:"Times New Roman";color:black">ProcedureDataSet</span><span lang="EN-US" style="font-size:10.0pt;font-family:宋体;mso-hansi-font-family:Arial;
color:black"><o:p>
</o:p>
</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:宋体;
mso-hansi-font-family:Arial;color:black"> </span><span style="mso-tab-count: 1; font-size: 10.0pt; font-family: Arial; mso-bidi-font-family: Times New Roman; color: black" lang="EN-US">
</span><span style="font-size:10.0pt;font-family:宋体;
mso-hansi-font-family:Arial;color:black">这是一个</span><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;mso-bidi-font-family:"Times New Roman";
color:black">JDBC</span><span style="font-size:10.0pt;font-family:宋体;
mso-hansi-font-family:Arial;color:black">的特殊</span><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;mso-bidi-font-family:"Times New Roman";
color:black">DataSet. </span><span style="font-size:10.0pt;font-family:宋体;
mso-hansi-font-family:Arial;color:black">他负责管理由</span><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;mso-bidi-font-family:"Times New Roman";
color:black">JDBC</span><span style="font-size:10.0pt;font-family:宋体;
mso-hansi-font-family:Arial;color:black">提供的数据<span lang="EN-US">.
被提供的数据包含了一个过程(</span></span><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;mso-bidi-font-family:"Times New Roman";
color:black">procedure</span><span lang="EN-US" style="font-size:10.0pt;
font-family:宋体;mso-hansi-font-family:Arial;color:black">)属性.
这个过程(</span><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;mso-bidi-font-family:"Times New Roman";
color:black">procedure</span><span lang="EN-US" style="font-size:10.0pt;
font-family:宋体;mso-hansi-font-family:Arial;color:black">)属性定义了一个被储存的过程.<o:p>
</o:p>
</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:宋体;
mso-hansi-font-family:Arial;color:black"> </span><span lang="EN-US" style="font-size:10.0pt;font-family:Symbol;color:black">
</span><span style="font-size: 10.0pt; font-family: 宋体; color: black; mso-hansi-font-family: Arial" lang="EN-US">
</span><span lang="EN-US" style="font-size:10.0pt;font-family:Symbol;color:black">·</span><span lang="EN-US" style="font-size:10.0pt;font-family:
Arial;mso-bidi-font-family:"Times New Roman";color:black">TableDataSet</span><span lang="EN-US" style="font-size:10.0pt;font-family:宋体;mso-hansi-font-family:Arial;
color:black"><o:p>
</o:p>
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