论坛站务软件水平考试华为认证计算机等级PMP认证思科认证Photoshop3DMAX编程语言移动开发系统运维产品运营淘宝营销办公软件Ps修图云计算大数据摄影就业

<p style="margin-top: 0px; margin-bottom: 10px; padding: 0px; box-sizing: border-box; color: rgb(51, 51, 51); font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);">　　<span style="margin: 0px; padding: 0px; box-sizing: border-box; color: rgb(255, 0, 0);"><span style="margin: 0px; padding: 0px; box-sizing: border-box; font-weight: 700;"><a href="http://www.kokojia.com/package-91.html" target="_blank" style="margin: 0px; padding: 0px; box-sizing: border-box; cursor: pointer; text-decoration-line: none; color: rgb(51, 122, 183); background-color: transparent;"><span style="margin: 0px; padding: 0px; box-sizing: border-box; color: rgb(255, 0, 0);">软件设计师</span></a></span></span>数据库模式考点有哪些?为了方便考生及时有效的备考，课课家小编为大家精心整理了软考中级软件设计师数据库模式考试知识点，供大家参考和学习。如想获取更多计算机软件水平考试的模拟题及备考资料，请关注课课家网站的更新。</p><p style="margin-top: 0px; margin-bottom: 10px; padding: 0px; box-sizing: border-box; color: rgb(51, 51, 51); font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);">　　【考法分析】</p><p style="margin-top: 0px; margin-bottom: 10px; padding: 0px; box-sizing: border-box; color: rgb(51, 51, 51); font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);">　　本知识点的主要考查方式是判断模式(外模式、模式、内模式)与产物(视图、库表、文件)的对应关系，或给定一些概念描述判断正误。</p><p style="margin-top: 0px; margin-bottom: 10px; padding: 0px; box-sizing: border-box; color: rgb(51, 51, 51); font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);">　　【要点分析】</p><p style="margin-top: 0px; margin-bottom: 10px; padding: 0px; box-sizing: border-box; color: rgb(51, 51, 51); font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);">　　1、三级模式：外模式对应视图，模式(也称为概念模式)对应数据库表，内模式对应物理文件。</p><p style="margin-top: 0px; margin-bottom: 10px; padding: 0px; box-sizing: border-box; color: rgb(51, 51, 51); font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);">　　2、两层映像：外模式-模式映像，模式-内模式映像;两层映像可以保证数据库中的数据具有较高的逻辑独立性和物理独立性。</p><p style="margin-top: 0px; margin-bottom: 10px; padding: 0px; box-sizing: border-box; color: rgb(51, 51, 51); font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);">　　3、逻辑独立性：即逻辑结构发生改变时，用户程序对外模式的调用可以不做修改;物理独立性：即数据库的内模式发生改变时，数据的逻辑结构不变。</p><p style="margin-top: 0px; margin-bottom: 10px; padding: 0px; box-sizing: border-box; color: rgb(51, 51, 51); font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);">　　【备考点拨】</p><p style="margin-top: 0px; margin-bottom: 10px; padding: 0px; box-sizing: border-box; color: rgb(51, 51, 51); font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);">　　掌握三级模式-两层映像结构和相关概念。</p><p style="margin-top: 0px; margin-bottom: 10px; padding: 0px; box-sizing: border-box; color: rgb(51, 51, 51); font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);">&nbsp; &nbsp; &nbsp; 课课家教育专注<span style="margin: 0px; padding: 0px; box-sizing: border-box; color: rgb(255, 0, 0);"><span style="margin: 0px; padding: 0px; box-sizing: border-box; font-weight: 700;"><a href="http://www.kokojia.com/packageList/336.html" target="_blank" style="margin: 0px; padding: 0px; box-sizing: border-box; cursor: pointer; text-decoration-line: none; color: rgb(51, 122, 183); background-color: transparent;"><span style="margin: 0px; padding: 0px; box-sizing: border-box; color: rgb(255, 0, 0);">软考培训</span></a></span></span>10年以上，一直坚持自主研发，将丰富的软考培训经验有效融入教程研发过程，自成体系的<span style="margin: 0px; padding: 0px; box-sizing: border-box; color: rgb(255, 0, 0);"><span style="margin: 0px; padding: 0px; box-sizing: border-box; font-weight: 700;"><a href="http://www.kokojia.com/packageList/336.html" target="_blank" style="margin: 0px; padding: 0px; box-sizing: border-box; cursor: pointer; text-decoration-line: none; color: rgb(51, 122, 183); background-color: transparent;"><span style="margin: 0px; padding: 0px; box-sizing: border-box; color: rgb(255, 0, 0);">软考视频教程</span></a>、<a href="https://ebuy.kokojia.com/list/77.html" target="_blank" style="margin: 0px; padding: 0px; box-sizing: border-box; cursor: pointer; text-decoration-line: none; color: rgb(51, 122, 183); background-color: transparent;"><span style="margin: 0px; padding: 0px; box-sizing: border-box; color: rgb(255, 0, 0);">软考培训教材</span></a></span></span>和<span style="margin: 0px; padding: 0px; box-sizing: border-box; color: rgb(255, 0, 0);"><span style="margin: 0px; padding: 0px; box-sizing: border-box; font-weight: 700;"><a href="http://tiku.kokojia.com/list/337.html" target="_blank" style="margin: 0px; padding: 0px; box-sizing: border-box; cursor: pointer; text-decoration-line: none; color: rgb(51, 122, 183); background-color: transparent;"><span style="margin: 0px; padding: 0px; box-sizing: border-box; color: rgb(255, 0, 0);">软考在线题库</span></a></span></span>，使考生的学习更具系统性，辅导更具针对性。想要报考2020年软考的考生现在就可以开始备考了，报名课课家软考各科目考试<span style="margin: 0px; padding: 0px; box-sizing: border-box; font-weight: 700;">赠送：辅导教材、历年真题、考前冲剌资料、在线模拟测试题库、老师专属答疑指导等</span>，以保障学员顺利通过考试。</p><p style="margin-top: 0px; margin-bottom: 10px; padding: 0px; box-sizing: border-box; color: rgb(51, 51, 51); font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; font-size: 14px; white-space: normal; background-color: rgb(255, 255, 255);">　　&gt;&gt;&gt;&gt;&gt;&gt;点击进入<span style="margin: 0px; padding: 0px; box-sizing: border-box; color: rgb(255, 0, 0);"><span style="margin: 0px; padding: 0px; box-sizing: border-box; font-weight: 700;"><a href="http://www.kokojia.com/activity-ruankao.html" target="_blank" style="margin: 0px; padding: 0px; box-sizing: border-box; cursor: pointer; text-decoration-line: none; color: rgb(51, 122, 183); background-color: transparent;"><span style="margin: 0px; padding: 0px; box-sizing: border-box; color: rgb(255, 0, 0);">软考报名专题</span></a></span></span></p><p><br/></p><p><span style="color: rgb(255, 0, 0); font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; font-size: 14px; font-weight: 700; background-color: rgb(255, 255, 255);">　　</span><span style="color: rgb(255, 0, 0); font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; font-size: 14px; font-weight: 700; background-color: rgb(255, 255, 255); margin: 0px; padding: 0px; box-sizing: border-box;"><span style="margin: 0px; padding: 0px; box-sizing: border-box; color: rgb(0, 0, 0);">相关推荐：</span><a href="http://bbs.kokojia.com/ruankao/87272" title="2020年软件设计师考点汇总" style="margin: 0px; padding: 0px; cursor: pointer; text-decoration-line: none; color: rgb(0, 174, 239); font-family: &quot;Microsoft Yahei&quot;, Tahoma, Helvetica, Arial, sans-serif; background-color: rgb(239, 239, 239);">2020年软件设计师考点汇总</a></span></p>

论坛站务软件水平考试华为认证计算机等级PMP认证思科认证Photoshop3DMAX编程语言移动开发系统运维产品运营淘宝营销办公软件Ps修图云计算大数据摄影就业