【正文】
17 / 18。2.5.15.表USERINFOCREATE TABLE USERINFO ( username CHAR(20), psw CHAR(30) NULL, employee_id CHAR(15) NULL, INDEX USERINFO_FKIndex1(employee_id))。2.5.13.表STATECREATE TABLE STATE ( id INTEGER UNSIGNED NOT NULL, name VARCHAR(20) NULL, PRIMARY KEY(id))。2.5.11.表ORDERITEMCREATE TABLE ORDERITEM ( order_id CHAR(15), item_id CHAR(15), amount INTEGER UNSIGNED NOT NULL, PRIMARY KEY(order_id, item_id), INDEX ORDERITEM_FKIndex1(order_id), INDEX ORDERITEM_FKIndex2(item_id))。2.5.9.表LEVELCREATE TABLE LEVEL ( id INTEGER NOT NULL, name VARCHAR(20) NULL, PRIMARY KEY(id))。2.5.7.表EVENTTYPECREATE TABLE EVENTTYPE ( id INTEGER UNSIGNED NOT NULL, name VARCHAR(20) NULL, PRIMARY KEY(id))。2.5.5.表EVENTCREATE TABLE EVENT ( id INTEGER UNSIGNED NOT NULL AUTO_INCREMENT, state_id INTEGER UNSIGNED NOT NULL, type_id INTEGER UNSIGNED NOT NULL, time DATE NULL, description TEXT NULL, code CHAR(15) NULL, level_id INTEGER UNSIGNED NULL, employee_id CHAR(15) NULL, PRIMARY KEY(id), INDEX ACCIDENT_FKIndex1(employee_id), INDEX ACCIDENT_FKIndex2(type_id), INDEX ACCIDENT_FKIndex3(state_id))。2.5.3.表COMPONENTCREATE TABLE COMPONENT ( serial CHAR(15) NOT NULL, amount INTEGER UNSIGNED NOT NULL, desciption TEXT NULL, name VARCHAR(20) NULL, PRIMARY KEY(serial))。 “規(guī)范化-數(shù)據(jù)庫設(shè)計原則” 作者:陳博2.?dāng)?shù)據(jù)字典2.1.ER模型作者:石挺常日期:20090726版本: 圖212.2.?dāng)?shù)據(jù)模型圖作者:王建明日期:20090726版本: 圖222.3.?dāng)?shù)據(jù)表描述表名描述COMPONENT管理零部件信息ORDERINFO管理訂單信息ITEM物品信息EMPLOYEE員工信息USERINFO管理系統(tǒng)登錄信息EVENT保存事件信息,如包裹丟失,電話記錄等EVENTSTATE事件的狀態(tài)信息LEVEL事件的級別信息SO