sql 关于文档的表中所有列、列的类型、列的说明、列字段等查询，表外键的查询

DECLARE @TableName NVARCHAR(50)


SET @TableName = 'Sys_Bank' 


select   A.name   as   外键关联的表,B.name   as   外键所在的表,C.name   as   外键名称 
from   sysforeignkeys   
inner   join   sysobjects   A   on   A.id=sysforeignkeys.fkeyid   
inner   join   sysobjects   B   on   B.id=sysforeignkeys.rkeyid 
inner   join   sysobjects   C   on   C.id=sysforeignkeys.constid
where a.name = @TableName


SELECT 
    --表名       = case when a.colorder=1 then d.name else '' end,
    --表说明     = case when a.colorder=1 then isnull(f.value,'') else '' end,
-- NO 字段名 主键 自增 类型 长度 空值 默认值 外键 PK表名 PK字段 说明
    NO   = a.colorder,
    字段名     = a.name,
    主键       = case when exists(SELECT 1 FROM sysobjects where xtype='PK' and parent_obj=a.id and name in (
                     SELECT name FROM sysindexes WHERE indid in( SELECT indid FROM sysindexkeys WHERE id = a.id AND colid=a.colid))) then 'Y' else '' end,
自增       = case when COLUMNPROPERTY( a.id,a.name,'IsIdentity')=1 then 'Y'else '' end,
    类型       = b.name,
    长度       = COLUMNPROPERTY(a.id,a.name,'PRECISION'),
--占用字节数 = a.length,
    --小数位数   = isnull(COLUMNPROPERTY(a.id,a.name,'Scale'),0),
    空值     = case when a.isnullable=1 then 'Y'else 'N' end,
    默认值     = isnull(e.text,''),
外键 = '',
PK表名 = '',
PK字段 = '',
    说明   = isnull(g.[value],a.name)
FROM syscolumns a 
left join systypes b on a.xusertype=b.xusertype
inner join sysobjects d on a.id=d.id  and d.xtype='U' and  d.name<>'dtproperties'
left join syscomments e on a.cdefault=e.id
left join sys.extended_properties g on a.id=g.major_id and a.colid=g.minor_id  
left join sys.extended_properties f on d.id=f.major_id and f.minor_id = 0
--left join sysforeignkeys k on a.id = k.fkeyid 
--inner   join   sysobjects   KA   on   KA.id=k.fkeyid   
--inner   join   sysobjects   KB   on   KB.id=k.rkeyid 
--inner   join   sysobjects   KC   on   KC.id=k.constid
where d.name=@TableName    --如果只查询指定表,加上此条件
order by a.id,a.colorder