select
b.[value]
from
sys.columns a
left
join
sys.extended_properties b
on
a.object_id=b.major_id
and
a.column_id=b.minor_id
inner
join
sysobjects c
on
a.column_id=c.id
and
a.[
name
]=
'列名'
and
c.[
name
]=
'表名'
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
,
字段序号=a.colorder,
字段名=a.
name
,
标识=
case
when
COLUMNPROPERTY( a.id,a.
name
,
'IsIdentity'
)=1
then
'√'
else
''
end
,
主键=
case
when
exists(
SELECT
1
FROM
sysobjects
where
xtype=
'PK'
and
name
in
(
SELECT
name
FROM
sysindexes
WHERE
indid
in
(
SELECT
indid
FROM
sysindexkeys
WHERE
id = a.id
AND
colid=a.colid
)))
then
'√'
else
''
end
,
类型=b.
name
,
占用字节数=a.length,
长度=COLUMNPROPERTY(a.id,a.
name
,
'PRECISION'
),
小数位数=
isnull
(COLUMNPROPERTY(a.id,a.
name
,
'Scale'
),0),
允许空=
case
when
a.isnullable=1
then
'√'
else
''
end
,
默认值=
isnull
(e.text,
''
),
字段说明=
isnull
(g.[value],
''
)
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
order
by
a.id,a.colorder
