SQL Server查询表结构语句

--1：获取当前数据库中的所有用户表   www.2cto.com  

select Name from sysobjects where xtype='u' and status>=0 

--2：获取某一个表的所有字段 

select name from syscolumns where id=object_id('表名') 

--3：查看与某一个表相关的视图、存储过程、函数 

select a.* from sysobjects a, syscomments b where a.id = b.id and b.text like '%表名%' 

 

--4：查看当前数据库中所有存储过程 

select name as 存储过程名称 from sysobjects where xtype='P' 

--5：查询用户创建的所有数据库 

select * from master..sysdatabases D where sid not in(select sid from master..syslogins where name='sa') 

或者 

select dbid, name AS DB_NAME from master..sysdatabases where sid <> 0x01 

 

--6：查询某一个表的字段和数据类型 

select column_name,data_type from information_schema.columns 

where table_name = '表名'

 

--7:获取一个表结构的字段，类型，描述，最大长度，

select
  cast(t1.tables_name as nvarchar) tables_name,
  cast(t1.columns_name as nvarchar) columns_name,
  cast(t1.columns_type as nvarchar) columns_type,
  cast(t1.max_length as int) max_length,
  cast(t1.is_nullable as nvarchar) is_nullable,
  cast(sys.extended_properties.value as nvarchar) description,
  cast(t1.column_id as int) column_id
from
 (
  select
   sys.tables.name tables_name,
   sys.columns.name columns_name,
   sys.types.name columns_type,
   sys.columns.max_length max_length,
   sys.columns.is_nullable is_nullable,
   sys.columns.object_id object_id,
   sys.columns.column_id column_id
  from
   sys.columns,
   sys.tables,
   sys.types
  where
   sys.columns.object_id = sys.tables.object_id
  and sys.columns.system_type_id = sys.types.system_type_id
  and sys.columns.user_type_id = sys.types.user_type_id
  and sys.tables.name = '#tablename#表名'
 ) t1
left join sys.extended_properties on sys.extended_properties.major_id = t1.object_id
and sys.extended_properties.minor_id = t1.column_id
order by
 t1.column_id