SqlServer查询数据库所有的表名称,表说明以及字段详细信息

SELECT 表名称= d.name,
       表说明= isnull(f.value,''),
       排序号= a.colorder,
       列名称= a.name,
       列说明= isnull(g.[value],''),
       标识列= case when COLUMNPROPERTY( a.id,a.name,'IsIdentity')=1 then 1 else 0 end,
       主键列= 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 1 else 0 end,
       列类型= b.name,
       字节数= a.length,
       列长度= COLUMNPROPERTY(a.id,a.name,'PRECISION'),
       小数位= isnull(COLUMNPROPERTY(a.id,a.name,'Scale'),0),
       允许空= case when a.isnullable=1 then 1 else 0 end,
       默认值= isnull(e.text,'')
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  sys.extended_properties g on  a.id=G.major_id and a.colid=g.minor_id  
LEFT JOIN  sys.extended_properties f on  d.id=f.major_id and f.minor_id=0
ORDER BY 表名称 ASC,排序号 ASC