求一存储过程, 得到指定数据库中所有的主键,外键的对应关系表,该如何处理
求一存储过程, 得到指定数据库中所有的主键,外键的对应关系表
(主键表名,主键名称, 外键表名, 外键名称) 即可
------解决方案--------------------
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 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,
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
sysproperties g
on
a.id=g.id and a.colid=g.smallid
left join
sysproperties f
on
d.id=f.id and f.smallid=0
where
d.name='要查询的表' --如果只查询指定表,加上此条件
order by
a.id,a.colorder
------解决方案--------------------
在乌龟的基础上加个left join sysforeignkeys即可
代码太长,上面有的不写了
select ....,
IsNull(object_name(fk.fkeyid),'') as '外键表',
object_name(fk.constid) as '外键名称'
from ...
....
left join sysforeignkeys as fk on a.[name]=col_name(object_name('表名字'),rkey)
------解决方案--------------------
------解决方案--------------------
留下脚印,学习中。
------解决方案--------------------
嗲,谁给个系统表的简单教程,联机帮助里有吗
------解决方案--------------------
学习!
------解决方案--------------------
MARK.
(主键表名,主键名称, 外键表名, 外键名称) 即可
------解决方案--------------------
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 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,
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
sysproperties g
on
a.id=g.id and a.colid=g.smallid
left join
sysproperties f
on
d.id=f.id and f.smallid=0
where
d.name='要查询的表' --如果只查询指定表,加上此条件
order by
a.id,a.colorder
------解决方案--------------------
在乌龟的基础上加个left join sysforeignkeys即可
代码太长,上面有的不写了
select ....,
IsNull(object_name(fk.fkeyid),'') as '外键表',
object_name(fk.constid) as '外键名称'
from ...
....
left join sysforeignkeys as fk on a.[name]=col_name(object_name('表名字'),rkey)
------解决方案--------------------
------解决方案--------------------
留下脚印,学习中。
------解决方案--------------------
嗲,谁给个系统表的简单教程,联机帮助里有吗
------解决方案--------------------
学习!
------解决方案--------------------
MARK.