摘要：PL/SQL Developer 8注册码PL/SQL Developer 8.0.1.1502（或PL/SQL Developer 8.*系列SN、注册码、序列号）注册码如下：Product code: leswljrftczs7bjz8pz2kq7vzq85fu67q8f8rgg2bv Serial number: 642136713 Password: xs374ca 阅读全文

摘要：首先,可以先看一下schema和user的定义：A schema is a collection of database objects (used by a user). Schema objects are the logical structures that directly refer to the database’s data.A user is a name defined in the database that can connect to and access objects.Schemas and users help database administrators m 阅读全文