表结构新.sql

sqlserver 数据库编程的绝好脚本

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],''),
	索引名称=isnull(h.索引名称,''),
	索引顺序=isnull(h.排序,'')
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.status>=0
	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
	left join(--这部分是索引信息,如果要显示索引与表及字段的对应关系,可以只要此部分
		select 索引名称=a.name,c.id,d.colid
			,排序=case indexkey_property(c.id,b.indid,b.keyno,'isdescending')
				when 1 then '降序' when 0 then '升序' end
		from sysindexes a
			join sysindexkeys b on a.id=b.id and a.indid=b.indid
			join (--这里的作用是有多个索引时,取索引号最小的那个
				select id,colid,indid=min(indid) from sysindexkeys
				group by id,colid) b1 on b.id=b1.id and b.colid=b1.colid and b.indid=b1.indid
			join sysobjects c on b.id=c.id and c.xtype='U' and c.status>=0
			join syscolumns d on b.id=d.id and b.colid=d.colid
		where a.indid not in(0,255)
	) h on a.id=h.id and a.colid=h.colid
--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





--索引信息

--索引信息
select 索引名称=case when b.keyno=1 then a.name else '' end
	,表名=case when b.keyno=1 then c.name else '' end
	,列名=d.name
	,排序=case indexkey_property(c.id,b.indid,b.keyno,'isdescending')
		when 1 then '降序' when 0 then '升序' end
	,聚集=INDEXPROPERTY(c.id,a.name,'IsClustered')
	,唯一=case INDEXPROPERTY(c.id,a.name,'IsUnique')
		when 0 then '非唯一'
		when 1 then case when e.id is null then '唯一索引' else '唯一约束' end
		end
	,e.name
	,填充因子=a.OrigFillFactor
from sysindexes a
	join sysindexkeys b on a.id=b.id and a.indid=b.indid
--	join (--这里的作用是有多个索引时,取索引号最小的那个
--		select id,colid,indid=min(indid) from sysindexkeys
--		group by id,colid) b1 on b.id=b1.id and b.colid=b1.colid and b.indid=b1.indid
	join sysobjects c on b.id=c.id and c.xtype='U' and c.status>=0
	join syscolumns d on b.id=d.id and b.colid=d.colid
	left join sysobjects e on b.indid=e.id and e.xtype='UQ'
where a.indid not in(0,255)
order by c.name,a.name