数据库原理
数 据 库 原 理
Fundamentals of Database 。参考文献 ·1.数据库原理与方法 郑若忠 ·2.数据库导论 王珊 国
1 Fundamentals of Database • 参考文献 • 1.数据库原理与方法 郑若忠 • 2.数据库导论 王 珊
Development History of Database 。l.W.Backman62年： IDS-Integrated Data Store 2.System Development Corporation 63---Development and Management of a Com- ● puter_Centered Database 65---Development and Management of a Com- puter Centered Database
2 Development History of Database • 1.W.Backman 62 年： • IDS—Integrated Data Store • 2. System Development Corporation • 63---Development and Management of a Com- • puter_Centered Database • 65---Development and Management of a Com- • puter_Centered Database
Development ·Data Independence 。Data Share ·Cross-access Expending and Redundancy Model and Data Languages 3 32
3 Development-------------------- 2 • Data Independence • Data Share • Cross-access • Expending and Redundancy • Model and Data Languages
3.Conference On DAta SYstem Languages ·CODASYL DBTG---Data Base Task Group 67--71 。Data language: DDL---Data Description Language DML---Data Manipulation Language 。DBTG-database ·Network Model
4 3.Conference On DAta SYstem Languages • CODASYL • DBTG---Data Base Task Group 67--71 • Data language : • DDL---Data Description Language • DML---Data Manipulation Language • DBTG---database • Network Model
● 4.IBM- IMS=Hierarchical Model 5
5 4. IBM-------------------------------- • IMS==Hierarchical Model
5.E.F.Codd A Relational Model of Data of Large Share Data Banks ·Relational Model relational algebra calculate 。data dependency Data Normalization Theory and Method
6 5.E.F.Codd--------------------------- • A Relational Model of Data of Large Share Data Banks • Relational Model • relational algebra calculate • data dependency • Data Normalization Theory and Method
