SQL 查询所有表名: SELECT NAME FROM SYSOBJECTS WHERE TYPE='U' SELECT * FROM INFORMATION_SCHEMA.TABLES 查询表的所有字段名: SELECT NAME FROM SYSCOLUMNS WHERE ID=OBJECT_ID(' 表名' ) SELECT * FROM INFORMATION_SCHEMA.TABLES SELECT * FROM INFORMATION_SCHEMA.VIEWS SELECT * FROM INFORMATION_SCHEMA.COLUMNS Oracle 查看所有表名: SELECT TABLE_NAME FROM USER_TABLES ACCESS 查看所有表名: SELECT NAME FROM MSYSOBJECTS WHERE TYPE=1 AND FLAGS=0 MSYSOBJECTS 是系统对象,默认情况是隐藏的。通过工具、选项、视图、显示、系统对象可以使之显示出来。