--SQL Server 2005, 2008 or 2012:SELECT * FROM information_schema.tables--SQL Server 2000:SELECT * FROM sysobjects WHERE xtype='U' SELECT * FROM sysobjects WHERE xtype='U' SELECT TABLE_NAME FROM geovidnu.INFORMATION_SCHEMA.TablesSELECT sobjects.nameFROM sysobjects sobjectsWHERE sobjects.xtype = 'U'EXEC sp_spaceused 'YourTableName'--顯示所有錶的列名SELECT COLUMN_NAME,TABLE_NAME FROM geovidnu.INFORMATION_SCHEMA.COLUMNSSELECT *  FROM geovidnu.INFORMATION_SCHEMA.COLUMNSSELECT     c.name 'Column Name',    t.Name 'Data type',    c.max_length 'Max Length',    c.PRecision ,    c.scale ,    c.is_nullable,    ISNULL(i.is_primary_key, 0) 'Primary Key'FROM        sys.columns cINNER JOIN     sys.types t ON c.user_type_id = t.user_type_idLEFT OUTER JOIN     sys.index_columns ic ON ic.object_id = c.object_id AND ic.column_id = c.column_idLEFT OUTER JOIN     sys.indexes i ON ic.object_id = i.object_id AND ic.index_id = i.index_idWHERE    c.object_id = OBJECT_ID('YourTableName')--http://stackoverflow.com/questions/2418527/sql-server-query-to-get-the-list-of-columns-in-a-table-along-with-data-types-noselect COLUMN_NAME,DATA_TYPE, CHARACTER_MAXIMUM_LENGTH,        NUMERIC_PRECISION, DATETIME_PRECISION,        IS_NULLABLE from INFORMATION_SCHEMA.COLUMNSwhere TABLE_NAME='YourTableName'Select C.COLUMN_NAME, C.DATA_TYPE, C.CHARACTER_MAXIMUM_LENGTH, C.NUMERIC_PRECISION, C.IS_NULLABLE, TC.CONSTRAINT_NAMEFrom INFORMATION_SCHEMA.COLUMNS As C    Left Join INFORMATION_SCHEMA.TABLE_CONSTRAINTS As TC      On TC.TABLE_SCHEMA = C.TABLE_SCHEMA          And TC.TABLE_NAME = C.TABLE_NAME          And TC.CONSTRAINT_TYPE = 'PRIMARY KEY'Where C.TABLE_NAME = 'YourTableName'----http://sqlserver2000.databases.aspfaq.com/how-do-i-get-a-list-of-sql-server-tables-and-their-row-counts.html

--比較錶結(jié)構(gòu)drop table #agodrop table #bgoSELECT COLUMN_NAME into #a FROM geovidnu.INFORMATION_SCHEMA.COLUMNS  where TABLE_NAME='('YourTableName')'SELECT COLUMN_NAME into #b geovidnu1.INFORMATION_SCHEMA.COLUMNS  where TABLE_NAME='('YourTableName')'select * from #b where COLUMN_NAME in (select COLUMN_NAME from #a) select * from #a where COLUMN_NAME in (select COLUMN_NAME from #b) select * from #a where COLUMN_NAME not in (select COLUMN_NAME from #b) select * from #b where COLUMN_NAME not in (select COLUMN_NAME from #a) select * from #a a, #b b where a.COLUMN_NAME=b.COLUMN_NAME select * from #a a left join #b b on a.COLUMN_NAME=b.COLUMN_NAMEselect * from #b a left join #a b on a.COLUMN_NAME=b.COLUMN_NAME