codd_1970 - A relational model for large shared databanks 时间:2010-11-27 03:54:11 【文件属性】: 文件名称:codd_1970 - A relational model for large shared databanks 文件大小:1.4MB 文件格式:PDF 更新时间:2010-11-27 03:54:11 codd relational relational model的开山之作,了解一下DBMS的历史 立即下载