丶君君的专栏

show parameter db_name;create user iweb identified by iweb;grant connect to iweb;grant resource to iweb;create table student(sno int not null,sname char(10),age int,sex int);insert into stud

看来有的人还是对schema的真正含义不太理解，现在我再次整理了一下，希望对大家有所帮助。我们先来看一下他们的定义：A schema is a collection of database objects (used by a user.). Schema objects are the logical structures that directly refer to the d