1. 列注释
原来代码：
{OWNER, TABLE, S, COLUMN, DTTPCODE, LENGTH, SIZE, PREC, COMPUTE, NOTNULL, IDENTITY, DOMAIN, DEFAULT, ExtIdentitySeedInc, COMMENT, ExtCollation, ExtIdtNotForReplication, ExtDeftConstName, Sparse, FileStream, ExtRowGuidCol}
select
u.name,
o.name,
c.column_id,
c.name,
case when c.system_type_id in (165, 167, 231) and c.max_length = -1 then t.name + '(Max)' else t.name end,
c.precision,
case (c.max_length) when -1 then 0 else case when c.system_type_id in (99, 231, 239) then (c.max_length/2) else (c.max_length) end end as colnA,
c.scale,
case(c.is_computed) when 1 then convert(varchar(8000), (select z.definition from [%CATALOG%.]sys.computed_columns z where z.object_id = c.object_id and z.column_id = c.column_id)) else '' end as colnB,
case(c.is_nullable) when 1 then 'NULL' else 'NOTNULL' end,
case(c.is_identity) when 1 then 'identity' else '' end,
case when(c.user_type_id <> c.system_type_id) then (select d.name from [%CATALOG%.]sys.types d where d.user_type_id = c.user_type_id) else '' end as colnC,
convert(varchar(8000), d.definition),
case (c.is_identity) when 1 then convert(varchar, i.seed_value) + ', ' + convert(varchar, i.increment_value) else '' end as colnD,
(select convert(varchar(8000), value) from ::fn_listextendedproperty(NULL, 'user', u.name, 'table', o.name, 'column', c.name) where name = 'MS_Description') as colnE,
c.collation_name,
case (i.is_not_for_replication) when 1 then 'true' else 'false' end,
d.name,
case(c.is_sparse) when 1 then 'true' else 'false' end,
case(c.is_filestream) when 1 then 'true' else 'false' end,
case(c.is_rowguidcol) when 1 then 'true' else 'false' end
from
[%CATALOG%.]sys.columns c
join [%CATALOG%.]sys.objects o on (o.object_id = c.object_id)
join [%CATALOG%.]sys.schemas u on (u.schema_id = o.schema_id)
join [%CATALOG%.]sys.types t on (t.user_type_id = c.system_type_id)
left outer join [%CATALOG%.]sys.identity_columns i on (i.object_id = c.object_id and i.column_id = c.column_id)
left outer join [%CATALOG%.]sys.default_constraints d on (d.object_id = c.default_object_id)
where
o.type in ('U', 'S', 'V')
[ and u.name = %.q:OWNER%]
[ and o.name=%.q:TABLE%]
order by 1, 2, 3
解决方案：
在PD的 tools-->resources-->dbms-->sql server 2008打开DBMS属性窗口，在general选项卡中选择Microsoft SQL Server 2008-->script-->objects-->column-->SQLlistquery修改其中的内容为:
{OWNER, TABLE, S, COLUMN, DTTPCODE, LENGTH, SIZE, PREC, COMPUTE, NOTNULL, IDENTITY, DOMAIN, DEFAULT, ExtIdentitySeedInc, COMMENT, ExtCollation, ExtIdtNotForReplication, ExtDeftConstName, Sparse, FileStream, ExtRowGuidCol}
select
u.name,
o.name,
c.column_id,
c.name,
case when c.system_type_id in (165, 167, 231) and c.max_length = -1 then t.name + '(Max)' else t.name end,
c.precision,
case (c.max_length) when -1 then 0 else case when c.system_type_id in (99, 231, 239) then (c.max_length/2) else (c.max_length) end end as colnA,
c.scale,
case(c.is_computed) when 1 then convert(varchar(8000), (select z.definition from [%CATALOG%.]sys.computed_columns z where z.object_id = c.object_id and z.column_id = c.column_id)) else '' end as colnB,
case(c.is_nullable) when 1 then 'NULL' else 'NOTNULL' end,
case(c.is_identity) when 1 then 'identity' else '' end,
case when(c.user_type_id <> c.system_type_id) then (select d.name from [%CATALOG%.]sys.types d where d.user_type_id = c.user_type_id) else '' end as colnC,
convert(varchar(8000), d.definition),
case (c.is_identity) when 1 then convert(varchar, i.seed_value) + ', ' + convert(varchar, i.increment_value) else '' end as colnD,
convert(varchar(8000),e.value),
c.collation_name,
case (i.is_not_for_replication) when 1 then 'true' else 'false' end,
d.name,
case(c.is_sparse) when 1 then 'true' else 'false' end,
case(c.is_filestream) when 1 then 'true' else 'false' end,
case(c.is_rowguidcol) when 1 then 'true' else 'false' end
from
[%CATALOG%.]sys.columns c
join [%CATALOG%.]sys.objects o on (o.object_id = c.object_id)
join [%CATALOG%.]sys.schemas u on (u.schema_id = o.schema_id)
join [%CATALOG%.]sys.types t on (t.user_type_id = c.system_type_id)
left outer join [%CATALOG%.]sys.identity_columns i on (i.object_id = c.object_id and i.column_id = c.column_id)
left outer join [%CATALOG%.]sys.default_constraints d on (d.object_id = c.default_object_id)
left outer join [%CATALOG%.]sys.extended_properties e on (e.class=u.schema_id and e.major_id=o.object_id and e.minor_id = c.column_id and e.name=N'MS_Description')
where
o.type in ('U', 'S', 'V')
[ and u.name = %.q:OWNER%]
[ and o.name=%.q:TABLE%]
order by 1, 2, 3
2. 表注释
原为：
{OWNER, TABLE, TABLE_TYPE, COMMENT}
select
u.name,
o.name,
case (o.type) when 'S' then 'SYSTEM TABLE' else 'TABLE' end,
(select convert(varchar(8000), value) from ::fn_listextendedproperty(NULL, 'user', u.name, 'table', o.name, null, null) where name = 'MS_Description') as coln
from
[%CATALOG%.]sys.sysobjects o
join [%CATALOG%.]sys.schemas u on (u.schema_id = o.uid)
where
o.type in ('U', 'S')
[ and u.name = %.q:OWNER%]
order by 1, 2
解决办法：
在PD的 tools-->resources-->dbms-->sql server 2008打开DBMS属性窗口，在general选项卡中选择Microsoft SQL Server 2008-->script-->objects-->Table-->SQLlistquery修改其中的内容为:
{OWNER, TABLE, TABLE_TYPE, COMMENT}
select
u.name,
o.name,
case (o.type) when 'S' then 'SYSTEM TABLE' else 'TABLE' end
,convert(varchar(8000), e.value) as coln
from
[%CATALOG%.]sys.sysobjects o
join [%CATALOG%.]sys.schemas u on (u.schema_id = o.uid)
left join [%CATALOG%.]sys.extended_properties e on (e.class=u.schema_id and e.major_id=o.id and e.minor_id=0 and e.name=N'MS_Description')
where
o.type in ('U', 'S')
[ and u.name = %.q:OWNER%]
order by 1, 2
3. 反向工程后，在Users中删除dbo用户，然后生成脚本即可运行。
图文操作:
1、修改反转过来的字段
PowerDesigner从数据库反转的时候，默认不带注释，需要先进行修改。
输入如下脚本：
{OWNER, TABLE, S, COLUMN, DTTPCODE, LENGTH, SIZE, PREC, COMPUTE, NOTNULL, IDENTITY, DOMAIN, DEFAULT, COMMENT, ExtIdentityIncrement, ExtIdentitySeed}
select
u.name,
o.name,
c.colid,
c.name,
case when (s.usertype < 100) then s.name else x.name end,
c.prec,
c.length,
c.scale,
z.text ,
case (c.status & 8) when 8 then 'NULL' else 'NOTNULL' end,
case (c.status & 128) when 128 then 'identity' else '' end,
case when (s.usertype < 100) then '' else s.name end,
v.text,
CONVERT(varchar, ISNULL(p.[value], '')) AS text,
case (c.status & 128) when 128 then ident_incr(u.name + '.' + o.name) else null end,
case (c.status & 128) when 128 then ident_seed(u.name + '.' + o.name) else null end
from
dbo.sysusers u
join dbo.sysobjects o on (o.uid = u.uid and o.type in ('U', 'S', 'V'))
join dbo.syscolumns c on (c.id = o.id)
left outer join sys.extended_properties p on c.id = p.major_id and c.colid = p.minor_id
left outer join dbo.systypes s on (c.usertype = s.usertype and s.xtype = c.xtype and c.usertype >= 0)
left outer join dbo.systypes x on (s.usertype > 100 and s.xtype = x.xtype and x.usertype not in (0, 18, 80) and x.usertype < 100)
left outer join dbo.syscomments z on (z.id = o.id and z.number = c.colid)
left outer join dbo.sysobjects d on (d.id = c.cdefault and d.category <> 0)
left outer join dbo.syscomments v on (v.id = d.id)
where 1 = 1
[ and u.name = %.q:OWNER%]
[ and o.name=%.q:TABLE%]
order by 1, 2, 3
2、配置PowerDesigner数据库连接
下一步，点击“完成”——“测试数据库”——返回OK。
3、新建物理数据模型
点击“OK”后，将会开始进行反转PD字典工作。
PowerDesigner设计时表显示注释选项: 选定编辑的表,右键- >Properties- >Columns- >Customize Columns and Filter(或直接用快捷键Ctrl+U)- >Comment(前面打勾)- >OK
如果出现错误“[Microsoft][ODBC SQL Server Driver][SQL Server]无法预定义语句。 SQLSTATE = 37000”
解决办法：选择菜单栏中的Database -> Change Current DBMS ,给DBMS选择SQL Server2005。
引用: http://www.cnblogs.com/zhangxb/archive/2012/04/20/2458898.html
具体操作: https://www.cnblogs.com/jiekzou/p/5721522.html