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 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
where d.name = 'BQ_NYZZXJHK'--如果只查询指定表,加上此where条件，tablename是要查询的表名；去除where条件查询所有的表信息
order by a.id,a.colorder