数据库的完整性控制熟悉利用企业管理器为列创建DEFAULT约束、为列创建CHECK约束、为列创建UNIQUE约束、为列创建不允许为空约束、创建PRIMARY KEY约束、创建FOREIGN KEY约束-Integrity control of the database use Enterprise Manager to create the familiar column DEFAULT constraint, create a CHECK constraint for a column, cr

《Oracle数据库技术》实验（上机）报告,实验六 存储过程与触发器,软件工程专业的可以-The Oracle technology experiment (computer) report, the six stored procedures and triggers, software engineering can have a look