SQL Server 获取表结构中字段的备注、主键等信息的sql
2022-11-12 09:45:07
内容摘要
这篇文章主要为大家详细介绍了SQL Server 获取表结构中字段的备注、主键等信息的sql，具有一定的参考价值，可以用来参考一下。
对此感兴趣的朋友，看看idc笔记做的技术笔记！1、MS
文章正文
这篇文章主要为大家详细介绍了SQL Server 获取表结构中字段的备注、主键等信息的sql，具有一定的参考价值，可以用来参考一下。
对此感兴趣的朋友，看看idc笔记做的技术笔记！
1、MSSQL2000代码如下:
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='FI_dept' --如果只查询指定表,加上此条件
order by
a.id,a.colorder
2、MSSQL2005use test--数据库go--2005实现字段属性统计(2000里的系统表sysproperties描述表、字段不存在，2005里用sys.extended_properties视图替代)select[表名]=c.Name,[表说明]=isnull(f.[value],''),[列名]=a.Name,[列序号]=a.Column_id,[标识]=case when is_identity=1 then '√' else '' end,[主键]=case when exists(select 1 from sys.objects where parent_object_id=a.object_id and type=N'PK' and name in(select Name from sys.indexes where index_id in(select indid from sysindexkeys where and colid=a.column_id)))then '√' else '' end,[类型]=b.Name,[字节数]=case when a.[max_length]=-1 and b.Name!='xml' then 'max/2G'when b.Name='xml' then ' 2^31-1字节/2G'else rtrim(a.[max_length]) end,[长度]=ColumnProperty(a.object_id,a.Name,'Precision'),[小数]=isnull(ColumnProperty(a.object_id,a.Name,'Scale'),0),[是否為空]=case when a.is_nullable=1 then '√' else '' end,[列说明]=isnull(e.[value],''),[默认值]=isnull(d.text,'')fromsys.columns aleft joinsys.types b on a.user_type_id=b.user_type_idinner joinsys.objects c on a.object_id=c.object_id and c.Type='U'left joinsyscomments d on a.default_object_id=d.IDleft joinsys.extended_properties e on e.major_id=c.object_id and e.minor_id=a.Column_id and e.class=1left joinsys.extended_properties f on f.major_id=c.object_id and f.minor_id=0 and f.class=1[/code]结果：【图片暂缺】
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代码注释
作者：喵哥笔记
