查看SQL Server數(shù)據(jù)庫(kù)主鍵列的方法
導(dǎo)讀:查看SQL Server數(shù)據(jù)庫(kù)主鍵列是SQL Server數(shù)據(jù)庫(kù)中經(jīng)常用得到的,文將通過一段代碼向大家介紹一下查看SQL Server數(shù)據(jù)庫(kù)主鍵列的一個(gè)方法,其實(shí)現(xiàn)過程也很簡(jiǎn)單,具體代碼如下:
以下是引用片段:
SELECT
sysobjects.name,syscons.name,syscolumns.name
From
sysobjects
inner join syscolumns
on sysobjects.id = syscolumns.id
left outer join
(select
o.name sTableName,
c.Name sColName
From
sysobjects o
inner join sysindexes i
on o.id = i.id
and (i.status & 0X800) = 0X800
inner join syscolumns c1
on c1.colid <= i.keycnt
and c1.id = o.id
inner join syscolumns c
on o.id = c.id
and c.name = index_col (o.name, i.indid, c1.colid)) pkElements
on pkElements.sTableName = sysobjects.name
and pkElements.sColName = syscolumns.name
inner join sysobjects syscons on sysobjects.id=syscons.parent_obj and syscons.xtype=’PK’
where
sysobjects.name in
(’TAB1’,’TAB2’......) and sTableName is not null
order by
--Case (syscolumns.Status & 128) when 128 then 1 else 0 end DESC,
sysobjects.name
上文中主要是代碼,對(duì)于一些初學(xué)者來說,可能就比較難理解,希望大家能夠認(rèn)真學(xué)習(xí)本文介紹的內(nèi)容。
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