sql server 2005 导出用户表数据字典

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[align=left]--作用：用于sql server 2005 导出用户表数据字典[/align]
[align=left]--作者：郭强--时间：年月日--用法如下：[/align]
[align=left]--1 默认导出当前数据库中所有用户表(xtype = 'u')的数据字典；[/align]
[align=left]--2 可以在xtype = 'u'替换为如下所示语句xtype = 'u' and name in ('son','Person') 导出自定义的表的数据字典；[/align]
[align=left]--3 可以利用集成服务SSIS导出数据字典的excel文件，形成文档；[/align]
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[align=left]select sysobjects.name as "表名",syscolumns.name as "字段名", [/align]
[align=left]case when systypes.name in ('binary','char','nchar') then (systypes.name + '(' + cast(syscolumns.prec as varchar(50)) + ')') [/align]
[align=left]when systypes.name in ('decimal','numeric') then (systypes.name + '(' + cast(syscolumns.prec as varchar(50)) + ',' + cast(syscolumns.scale as varchar(50)) + ')') [/align]
[align=left]when systypes.name in ('nvarchar','varchar','varbinary') then (case when syscolumns.prec = -1 then (systypes.name + '(MAX)') else (systypes.name + '(' + cast(syscolumns.prec as varchar(50)) + ')') end) [/align]
[align=left]else systypes.name end as "字段类型",[/align]
[align=left]syscomments.text as "默认值", case when syscolumns.isnullable = 1 then 'Y' else 'N' end as "能否为空",[/align]
[align=left] cast(sys.extended_properties.value as varchar(1024)) as "备注" [/align]
[align=left]from syscolumns inner join systypes on syscolumns.xtype = systypes.xtype left join sysobjects [/align]
[align=left]on syscolumns.id = sysobjects.id left outer join sys.extended_properties [/align]
[align=left]on ( sys.extended_properties.minor_id = syscolumns.colid and sys.extended_properties.major_id = syscolumns.id) left outer join syscomments [/align]
on syscolumns.cdefault = syscomments.id where syscolumns.id in (select id from sysobjects where xtype = 'u') and (systypes.name <> 'sysname') order by sysobjects.name asc