空间数据库与传统数据库对比
2016-11-02 19:58:27 30 举报AI智能生成
空间数据库与传统数据库的对比
作者其他创作
大纲/内容
<p style="margin-top: 0pt; margin-bottom: 0pt; margin-left: 0in; direction: ltr; unicode-bidi: embed; word-break: normal;"><span style="font-size:18.0pt;<br>font-family:等线;mso-ascii-font-family:等线;mso-fareast-font-family:等线;mso-bidi-font-family:<br>+mn-cs;mso-ascii-theme-font:minor-latin;mso-fareast-theme-font:minor-fareast;<br>mso-bidi-theme-font:minor-bidi;color:black;mso-color-index:1;mso-font-kerning:<br>12.0pt;language:zh-CN;mso-style-textfill-type:solid;mso-style-textfill-fill-themecolor:<br>text1;mso-style-textfill-fill-color:black;mso-style-textfill-fill-alpha:100.0%">数据管理差异</span></p>
空间数据连续，具有很强的空间关联性
实体类型繁多且存在复杂的空间关系
存储对象有1，2，3维甚至更高维
<span style="color: rgb(51, 51, 51); font-family: 微软雅黑, 幼圆, 'Microsoft YaHei', YouYuan, 'Segoe UI Light', 'Helvetica Neue', 'Segoe UI', 'Segoe WP', sans-serif; line-height: 28.7999992370605px;">地理空间数据管理技术还必须具有对地理对象进行模拟和推理的功能</span>
<span style="color: rgb(51, 51, 51); font-family: 微软雅黑, 幼圆, 'Microsoft YaHei', YouYuan, 'Segoe UI Light', 'Helvetica Neue', 'Segoe UI', 'Segoe WP', sans-serif; line-height: 28.7999992370605px;">通常按复杂的、多维的空间索引结构组织数据，能被特有的空间数据访问方式所访问，经常需要空间推理、几何计算和空间知识表达等技术</span>
<p style="margin-top: 0pt; margin-bottom: 0pt; margin-left: 0in; direction: ltr; unicode-bidi: embed; word-break: normal;"><span style="font-size:18.0pt;<br>font-family:等线;mso-ascii-font-family:等线;mso-fareast-font-family:等线;mso-bidi-font-family:<br>+mn-cs;mso-ascii-theme-font:minor-latin;mso-fareast-theme-font:minor-fareast;<br>mso-bidi-theme-font:minor-bidi;color:black;mso-color-index:1;mso-font-kerning:<br>12.0pt;language:zh-CN;mso-style-textfill-type:solid;mso-style-textfill-fill-themecolor:<br>text1;mso-style-textfill-fill-color:black;mso-style-textfill-fill-alpha:100.0%">数据更新差异</span></p>
<span style="color: rgb(51, 51, 51); font-family: 微软雅黑, 幼圆, 'Microsoft YaHei', YouYuan, 'Segoe UI Light', 'Helvetica Neue', 'Segoe UI', 'Segoe WP', sans-serif; line-height: 28.7999992370605px;">数据更新周期不同</span>
<span style="color: rgb(51, 51, 51); font-family: 微软雅黑, 幼圆, 'Microsoft YaHei', YouYuan, 'Segoe UI Light', 'Helvetica Neue', 'Segoe UI', 'Segoe WP', sans-serif; line-height: 28.7999992370605px;">数据更新的角色不同</span>
<span style="color: rgb(51, 51, 51); font-family: 微软雅黑, 幼圆, 'Microsoft YaHei', YouYuan, 'Segoe UI Light', 'Helvetica Neue', 'Segoe UI', 'Segoe WP', sans-serif; line-height: 28.7999992370605px;">访问的数据量不同</span>
<span style="color: rgb(51, 51, 51); font-family: 微软雅黑, 幼圆, 'Microsoft YaHei', YouYuan, 'Segoe UI Light', 'Helvetica Neue', 'Segoe UI', 'Segoe WP', sans-serif; line-height: 28.7999992370605px;">数据更新的策略不同。传统数据库一般事务控制，而空间数据库一般允许访问时间相对滞后的数据</span>
<p style="margin-top: 0pt; margin-bottom: 0pt; margin-left: 0in; direction: ltr; unicode-bidi: embed; word-break: normal;"><span style="font-size:18.0pt;<br>font-family:等线;mso-ascii-font-family:等线;mso-fareast-font-family:等线;mso-bidi-font-family:<br>+mn-cs;mso-ascii-theme-font:minor-latin;mso-fareast-theme-font:minor-fareast;<br>mso-bidi-theme-font:minor-bidi;color:black;mso-color-index:1;mso-font-kerning:<br>12.0pt;language:zh-CN;mso-style-textfill-type:solid;mso-style-textfill-fill-themecolor:<br>text1;mso-style-textfill-fill-color:black;mso-style-textfill-fill-alpha:100.0%">服务应用差异</span></p>
<span style="color: rgb(51, 51, 51); font-family: 微软雅黑, 幼圆, 'Microsoft YaHei', YouYuan, 'Segoe UI Light', 'Helvetica Neue', 'Segoe UI', 'Segoe WP', sans-serif; line-height: 28.7999992370605px;">服务和应用范围相当广泛</span>
<span style="color: rgb(51, 51, 51); font-family: 微软雅黑, 幼圆, 'Microsoft YaHei', YouYuan, 'Segoe UI Light', 'Helvetica Neue', 'Segoe UI', 'Segoe WP', sans-serif; line-height: 28.7999992370605px;">是一个共享或分享式的数据库</span>
<span style="color: rgb(51, 51, 51); font-family: 微软雅黑, 幼圆, 'Microsoft YaHei', YouYuan, 'Segoe UI Light', 'Helvetica Neue', 'Segoe UI', 'Segoe WP', sans-serif; line-height: 28.7999992370605px;">传统的关系数据库中存储和处理的大都是关系数据</span>
<p style="margin-top: 0pt; margin-bottom: 0pt; margin-left: 0in; direction: ltr; unicode-bidi: embed; word-break: normal;"><span style="font-size:18.0pt;<br>font-family:等线;mso-ascii-font-family:等线;mso-fareast-font-family:等线;mso-bidi-font-family:<br>+mn-cs;mso-ascii-theme-font:minor-latin;mso-fareast-theme-font:minor-fareast;<br>mso-bidi-theme-font:minor-bidi;color:black;mso-color-index:1;mso-font-kerning:<br>12.0pt;language:zh-CN;mso-style-textfill-type:solid;mso-style-textfill-fill-themecolor:<br>text1;mso-style-textfill-fill-color:black;mso-style-textfill-fill-alpha:100.0%">数据操作差异</span></p>
<span style="color: rgb(51, 51, 51); font-family: 微软雅黑, 幼圆, 'Microsoft YaHei', YouYuan, 'Segoe UI Light', 'Helvetica Neue', 'Segoe UI', 'Segoe WP', sans-serif; line-height: 28.7999992370605px;">地理空间数据管理中需要进行大量的空间数据操作和查询，如矢量地图的剪切、叠加和缓冲区等空间操作、裁剪、合并、影像特征提取、影像分割、影像代数运算、拓扑和相似性查询等</span>
<p style="margin-top: 0pt; margin-bottom: 0pt; margin-left: 0in; direction: ltr; unicode-bidi: embed; word-break: normal;"><span style="font-size:18.0pt;<br>font-family:等线;mso-ascii-font-family:等线;mso-fareast-font-family:等线;mso-bidi-font-family:<br>+mn-cs;mso-ascii-theme-font:minor-latin;mso-fareast-theme-font:minor-fareast;<br>mso-bidi-theme-font:minor-bidi;color:black;mso-color-index:1;mso-font-kerning:<br>12.0pt;language:zh-CN;mso-style-textfill-type:solid;mso-style-textfill-fill-themecolor:<br>text1;mso-style-textfill-fill-color:black;mso-style-textfill-fill-alpha:100.0%"><b>信息描述差异</b></span></p>
数据复杂
数量大
收藏
0 条评论
下一页
