要删除复制添加的表和微软添加的任何其他表，请运行以下命令:

SELECT s.NAME SchemaName, t.NAME TableName
FROM [dbname].SYS.tables t
INNER JOIN [dbname].SYS.SCHEMAS s
ON t.SCHEMA_ID = s.SCHEMA_ID
WHERE t.is_ms_shipped=0 and type_desc = 'USER_TABLE'
ORDER BY s.NAME, t.NAME

select * from sysobjects where xtype='U'

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

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

SELECT * FROM INFORMATION_SCHEMA.TABLES 

OR

SELECT * FROM Sys.Tables

SELECT sobjects.name
FROM sysobjects sobjects
WHERE sobjects.xtype = 'U'

下面是你可以搜索的其他对象类型的列表:

AF: Aggregate function (CLR) C: CHECK constraint D: Default or DEFAULT constraint F: FOREIGN KEY constraint L: Log FN: Scalar function FS: Assembly (CLR) scalar-function FT: Assembly (CLR) table-valued function IF: In-lined table-function IT: Internal table P: Stored procedure PC: Assembly (CLR) stored-procedure PK: PRIMARY KEY constraint (type is K) RF: Replication filter stored procedure S: System table SN: Synonym SQ: Service queue TA: Assembly (CLR) DML trigger TF: Table function TR: SQL DML Trigger TT: Table type U: User table UQ: UNIQUE constraint (type is K) V: View X: Extended stored procedure

--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