方法一
select
序號=c.column_id,
列名=c.name,
是否主鍵=isnull(idx.primarykey,n''),
資料型別=t.name,
長度=c.max_length,
precision=c.precision,
小數字=c.scale,
允許空=case when c.is_nullable=1 then n'是'else n'否' end,
預設值=isnull(d.definition,n''),
說明=isnull(pfd.[value],n'')
from sys.columns c
inner join sys.objects o
on c.[object_id]=o.[object_id]
and o.type='u'
and o.is_ms_shipped=0
inner join sys.types t
on c.user_type_id=t.user_type_id
left join sys.default_constraints d
on c.[object_id]=d.parent_object_id
and c.column_id=d.parent_column_id
and c.default_object_id=d.[object_id]
left join sys.extended_properties pfd
on pfd.class=1
and c.[object_id]=pfd.major_id
and c.column_id=pfd.minor_id
left join sys.extended_properties ptb
on ptb.class=1
and ptb.minor_id=0
and c.[object_id]=ptb.major_id
left join -- 索引及主鍵資訊
(select
idxc.[object_id],
idxc.column_id,
sort=case indexkey_property(idxc.[object_id],idxc.index_id,idxc.index_column_id,'isdescending')
when 1 then 'desc' when 0 then 'asc' else '' end,
primarykey=case when idx.is_primary_key=1 then n'是'else n'否' end,
indexname=idx.name
from sys.indexes idx
inner join sys.index_columns idxc
on idx.[object_id]=idxc.[object_id]
and idx.index_id=idxc.index_id
left join sys.key_constraints kc
on idx.[object_id]=kc.[parent_object_id]
and idx.index_id=kc.unique_index_id
inner join -- 對於乙個列包含多個索引的情況,只顯示第1個索引資訊
(select [object_id], column_id, index_id=min(index_id)
from sys.index_columns
group by [object_id], column_id
) idxcuq
on idxc.[object_id]=idxcuq.[object_id]
and idxc.column_id=idxcuq.column_id
and idxc.index_id=idxcuq.index_id
) idx
on c.[object_id]=idx.[object_id]
and c.column_id=idx.column_id
where c.object_id= object_id('dbo.crm_商店') -- 指定表
order by o.name,c.column_id
方法二select s.name columname
,(case
when s.is_nullable=1 then n'是'
else n'否' end
) as allownull
,s.max_length maxlength
,typesystable.name datetype
from sys.columns s
inner join sys.types typesystable on s.system_type_id = typesystable.system_type_id
where s.object_id= object_id(@tablename)
and typesystable.name != 'sysname'
方法三（優化方法一）
select s.column_id 序號
,s.name 列名稱
,isnull(idx.primarykey,n'否') 主鍵
,(case
when s.is_nullable=1 then n'是'
else n'否'
end) as 是否允許空
,s.max_length 長度
,typesystable.name 資料型別
,s.scale 小數字
,isnull(d.definition,n'') 預設值
,isnull(pfd.[value],n'') 說明
from sys.columns s
inner join sys.types typesystable on s.system_type_id = typesystable.system_type_id
inner join sys.objects o on s.[object_id]=o.[object_id]
and o.type='u'
and o.is_ms_shipped=0
left join sys.default_constraints d on s.[object_id]=d.parent_object_id
and s.column_id=d.parent_column_id
and s.default_object_id=d.[object_id]
left join sys.extended_properties pfd on pfd.class=1
and s.[object_id]=pfd.major_id
and s.column_id=pfd.minor_id
left join -- 索引及主鍵資訊
( select
idxc.[object_id],
idxc.column_id,
sort=case indexkey_property(idxc.[object_id],idxc.index_id,idxc.index_column_id,'isdescending')
when 1 then 'desc' when 0 then 'asc' else '' end,
primarykey=case when idx.is_primary_key=1 then n'是'else n'否' end,
indexname=idx.name
from sys.indexes idx
inner join sys.index_columns idxc on idx.[object_id]=idxc.[object_id]
and idx.index_id=idxc.index_id
left join sys.key_constraints kc on idx.[object_id]=kc.[parent_object_id]
and idx.index_id=kc.unique_index_id
inner join -- 對於乙個列包含多個索引的情況,只顯示第1個索引資訊
( select [object_id], column_id, index_id=min(index_id)
from sys.index_columns
group by [object_id], column_id
) idxcuq on idxc.[object_id]=idxcuq.[object_id]
and idxc.column_id=idxcuq.column_id
and idxc.index_id=idxcuq.index_id
) idx on s.[object_id]=idx.[object_id]
and s.column_id=idx.column_id
where s.object_id= object_id('crm_商店')
and typesystable.name != 'sysname'
order by o.name, s.column_id
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