SQL 查询数据库所有字表名,表中有记录的字段名,字段类型,长度

[caryax2012]

SQL 查询数据库所有字表名,表中有记录的字段名,字段类型,长度

例如：表A：
Field1 Field2 Field3 Field4 Field5
张三 30 2008-09-02
阿四 30 test2
阿东 Test1 2009-03-02


那么就拿出效果：

表A Field1 Varchar 20
表A Field2 int 4
表A Field3 Varchar 50
表A Field4 Datetime

[卖水果的net]

select * from sys.tables -- 所有表 select * from sys.columns -- 所有列

[kingtiy]

SELECT a.name,b.name,c.DATA_TYPE,b.max_length FROM sys.tables a join sys.columns b on b.object_id = a.object_id
join INFORMATION_SCHEMA.COLUMNS c on b.name=c.COLUMN_NAME and a.name=c.TABLE_NAME
where a.name='表名'
go

--试下,这个应该可以

[中国风]

--2005實現數據庫表字段屬性統計(2000里的系統表sysproperties描述表不存在，2005里用sys.extended_properties視圖替代)
select 
    [表名]=c.Name,
    [表说明]=isnull(f.[value],''),
    [列名]=a.Name,
    [列序號]=a.Column_id,
    [標識]=case when is_identity=1 then '√' else '' end,
    [主鍵]=case when exists(select 1 from sys.objects x join sys.indexes y on x.Type=N'PK' and x.Name=y.Name 
                        join sysindexkeys z on z.ID=a.Object_id and z.indid=y.index_id and z.Colid=a.Column_id)
                    then '√' else '' end,
    [類型]=b.Name,
    [字節數]=case when a.[max_length]=-1 and b.Name!='xml' then 'max/2G' 
            when b.Name='xml' then '2^31-1字節/2G'
            else rtrim(a.[max_length]) end,
    [長度]=case when ColumnProperty(a.object_id,a.Name,'Precision')=-1 then '2^31-1'
                else rtrim(ColumnProperty(a.object_id,a.Name,'Precision')) end,
    [小數]=isnull(ColumnProperty(a.object_id,a.Name,'Scale'),0),
    [是否為空]=case when a.is_nullable=1 then '√' else '' end,
    [列说明]=isnull(e.[value],''),
    [默認值]=isnull(d.text,'')    
from 
    sys.columns a
left join
    sys.types b on a.user_type_id=b.user_type_id
inner join
    sys.objects c on a.object_id=c.object_id and c.Type='U'
left join
    syscomments d on a.default_object_id=d.ID
left join
    sys.extended_properties e on e.major_id=c.object_id and e.minor_id=a.Column_id and e.class=1 
left join
    sys.extended_properties f on f.major_id=c.object_id and f.minor_id=0 and f.class=1

http://blog.csdn.net/roy_88/article/details/1914264