SQL SERVER: the system used by the server database management system (DBMS). SQL: A query is used to access the database language Affairs stream: data entering the module may have multiple paths for processing. Primary key: the key to the database table domain. Values different from each other. External primary key: the database table primary key table and other associated domain. ROLLBACK: Database error recovery mechanism.

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..\飞机订票系统
..\............\可行性报告1.doc
..\............\总结性报告1.doc
..\............\概要设计说明书1.doc
..\............\测试分析报告1.doc
..\............\测试计划1.doc
..\............\用户操作手册1.doc
..\............\程序维护手册1.doc

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