sql 檢視所有表名：
select name from sysobjects where type='u'
查詢表的所有欄位名：
select name from syscolumns where id=object_id('表名')
select * from information_schema.tables
select * from information_schema.views
select * from information_schema.columns
access
檢視所有表名：
select name from msysobjects where type=1 and flags=0
msysobjects是系統物件，預設情況是隱藏的。通過工具、選項、檢視、顯示、系統物件可以使之顯示出來。
sql查詢表的備註說明
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
from syscolumns a
inner join sysobjects d
on a.id = d.id
and d.xtype = 'u'
and d.name <> 'sys.extended_properties'
left join sys.extended_properties f
on a.id = f.major_id
and f.minor_id = 0
sql查詢表的所有欄位的備註說明
sql_1：
select sysobjects.name as table_name, syscolumns.id, syscolumns.name as column_name,
systypes.name as data_type, syscolumns.length as character_maximum_length,
sys.extended_properties.[value] as column_description, syscomments.text as
column_default,syscolumns.isnullable as is_nullable from syscolumns
inner join systypes
on syscolumns.xtype = systypes.xtype
left join sysobjects on syscolumns.id = sysobjects.id
left outer join sys.extended_properties on
( sys.extended_properties.minor_id = syscolumns.colid
and sys.extended_properties.major_id = syscolumns.id)
left outer join syscomments on syscolumns.cdefault = syscomments.id
where syscolumns.id in
(select id from sysobjects where xtype = 'u') and (systypes.name <> 'sysname')
order by syscolumns.colid
sql_2：
select
(case when a.colorder=1 then d.name else '' end) n'表名',
a.colorder n'字段序號',
a.name n'欄位名',
(case when columnproperty( a.id,a.name,'isidentity')=1 then '√'else ''
end) n'標識',
(case when (select count(*)
from sysobjects
where (name in
(select name
from sysindexes
where (id = a.id) and (indid in
(select indid
from sysindexkeys
where (id = a.id) and (colid in
(select colid
from syscolumns
where (id = a.id) and (name = a.name))))))) and
(xtype = 'pk'))>0 then '√' else '' end) n'主鍵',
b.name n'型別',
a.length n'占用位元組數',
columnproperty(a.id,a.name,'precision') as n'長度',
isnull(columnproperty(a.id,a.name,'scale'),0) as n'小數字數',
(case when a.isnullable=1 then '√'else '' end) n'允許空',
isnull(e.text,'') n'預設值',
isnull(g.[value],'') as n'字段說明'
from syscolumns a
left join systypes b
on a.xtype=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
order by object_name(a.id),a.colorder
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