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数据库技术及应用

数据库技术及应用

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第 6 第 第第第第第第第第第第 6.1 第第第第 (一) 一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一 SQL 一一一 (一) 一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一 SQL 一一一 一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一 (一) 一一一一一一一一一一一一一一一一一一一一一一一一一一一一一 一1一 一一一一一一一 一2一 一一一一一一一一一一一一一一一一一一 SQL 一一一一一一 第第 第第第第第第第第第第 1第第第第Data第第 一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一 一一一一一一一一一一一一一一 2第第第第Information第第 一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一 3第第第第第第 一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一 一一一一一一 第第第第第第第第第第第第第第第第第第第 一一一 第DB第DataBase第 一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一 一一一一一一一一一一一一 1第 第第第第第第第DBMS第DataBase Management System第 一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一DBMS 一一一一一一一一一一一一一 2第 BMS 第第第 a) 一一一一一DBMS 一一一一一一一一一data definition language一DDL一一一一一一 DDL 一一一一一一一一一一一一一一一一一一一一 b) 一一一一一DBMS 一一一一一一一一一data manipulation language一DML一一一一一一 DML 一一一一一一一一一一一一一一一一一一一 一一一一一一一一一一一一 c) 一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一 d) 一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一 3第第第第第第第DBS第DataBase System第 a一一一一一一一一一一一一一一一一一一一一一一一一一一一一
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