Built-Indatabase Objects Other objects created with the database: ·Data dictionary ·Performance tables ·PL/SQL packages ·Database event triggers Data Dictionary ·Central toevery Oracle database ·Describes the database and it's objects ·Contains read-
Overview of the Data Dictionary Because Oracle Database stores data dictionary data in tables, just like other data, users can query the data with SQL. Contents of the Data Dictionary The data dictionary consists of the following types of objects: Ba
v$database:数据库的信息,如数据库名,创建时间等. v$instance 实例信息,如实例名,启动时间. v$parameter 参数信息,select * from v$parameter where name like '%name' ----> show parameter name(sqlplus中执行) v$process 运行的进程的信息,如PID,SPID,以及进程的名字,如SMON,PMON在UNIX的进程名称,在windows中会看到类似ORACLE.EXE (PM