INFORMATION_SCHEMA

INFORMATION_SCHEMA:

用途:访问数据库元数据。

它是以 sysobjects 和 syscolumns 系统表为基础建立的系统视图。它的字段更具备可读性。

它不包含系统数据库的表.

系统 INFORMATION_SCHEMA
视图:

INFORMATION_SCHEMA.CHECK_CONSTRAINTS

INFORMATION_SCHEMA.COLUMN_DOMAIN_USAGE

INFORMATION_SCHEMA.COLUMN_PRIVILEGES

INFORMATION_SCHEMA.COLUMNS

INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE

INFORMATION_SCHEMA.CONSTRAINT_TABLE_USAGE

INFORMATION_SCHEMA.DOMAIN_CONSTRAINTS

INFORMATION_SCHEMA.DOMAINS

INFORMATION_SCHEMA.KEY_COLUMN_USAGE

INFORMATION_SCHEMA.PARAMETERS

INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS

INFORMATION_SCHEMA.ROUTINES 返回当前数据库中当前用户能访问的所有函数和存储过程的元数据信息。

INFORMATION_SCHEMA.ROUTINE_COLUMNS

INFORMATION _ SCHEMA.SCHEMATA

INFORMATION_SCHEMA.TABLE_CONSTRAINTS

INFORMATION_SCHEMA.TABLE_PRIVILEGES

INFORMATION_SCHEMA.TABLES

INFORMATION_SCHEMA.VIEW_COLUMN_USAGE

INFORMATION_SCHEMA.VIEW_TABLE_USAGE

INFORMATION_SCHEMA.VIEWS

eg: SELECT * FROM INFORMATION_SCHEMA.TABLES

参考: http://msdn.microsoft.com/zh-cn/library/ms186778.aspx  信息架构视图 (Transact-SQL)