exec sp_msforeachtable 'print ''?'''

SELECT name 
FROM sysobjects 
WHERE xtype='U' 
ORDER BY name;

(SQL Server 2000标准;SQL Server 2005仍然支持。)

select * from sysobjects where xtype='U'

--for oracle
select tablespace_name, table_name from all_tables;

这个链接可以提供更多的信息 主题

SELECT * FROM information_schema.tables
where TABLE_TYPE = 'BASE TABLE'

SQL Server 2012

SELECT * FROM INFORMATION_SCHEMA.TABLES 

OR

SELECT * FROM Sys.Tables