SQL Server 2008獲取一個表的欄位，型別，長度，是否主鍵，是否為空，註釋等資訊
阿新 • • 發佈：2018-11-04
SELECT
[表名]=
case
when
a.colorder=1
then
d.
name
else
''
end
,
[表說明]=
case
when
a.colorder=1
then
isnull
(f.value,
''
)
else
''
end
,
[欄位序號]=a.colorder,
[欄位名]=a.
name
,
[標識]=case
when
COLUMNPROPERTY( a.id,a.
name
,
'IsIdentity'
)=1
then
'√'
else
''
end
,
[主鍵]=
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
'√'
else
''
end
,
[型別]=b.
name
,
[佔用位元組數]=a.length,
[長度]=COLUMNPROPERTY(a.id,a.name
,
'PRECISION'
),
[小數位數]=
isnull
(COLUMNPROPERTY(a.id,a.
name
,
'Scale'
),0),
[允許空]=
case
when
a.isnullable=1
then
'√'
else
''
end
,
[預設值]=
isnull
(e.text,
''
),
[欄位說明]=
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
--where d.name='TableName' --如果只查詢指定表,加上此條件
order
by
a.id,a.colorder
OR
?select
c.
name
as
cname,c.prec
AS
Prec,c.isnullable
AS
isnullable,
[IsPk]=
case
when
exists(
SELECT
1
FROM
sysobjects
where
xtype=
'PK'
and
parent_obj=c.id
and
name
in
(
SELECT
name
FROM
sysindexes
WHERE
indid
in
(
SELECT
indid
FROM
sysindexkeys
WHERE
id = c.id
AND
colid=c.colid)))
then
'1'
else
'0'
end
,
[defaultval]=
isnull
(e.text,
''
),
t.
name
as
tname ,(
select
value
from
sys.extended_properties
as
ex
where
ex.major_id = c.id
and
ex.minor_id = c.colid)
as
notes
from
syscolumns
as
c
inner
join
sys.tables
as
ta
on
c.id=ta.object_id
inner
join
(
select
name
,system_type_id
from
sys.types
where
name
<>
'sysname'
)
as
t
on
c.xtype=t.system_type_id
left
join
syscomments e
on
c.cdefault=e.id
where
ta.
name
=
'TestTb'
order
by
c.colid