PowerDesigner 15进行逆向工程生成数据库图表时，注释的comment的生成，解决PowerDesigner逆向工程没有列注释

使用PowerDesigner默认配置逆向工程是没有注释（name列为英文，comment列是空的），这样的不方便查看字段具体是什么意义，将注释一同导出，方便查看字段具体的意义，如下图

注释列导出步骤

1、新建脚本DBMS，选择菜单：Tools→Resources→DBMS

弹出List Of DBMS对话框，选择新建

弹出新建对话框，填写名称为“My Microsoft SQL Server 2008”（这个名称可以自己定义），选择“Microsoft SQL Server 2008”，点击OK

上图默认文件，不需要修改，直接点保存，弹出下图

点击展开script->objects->column，选中SqlListQuery，如下图

将下面的脚本复制到右边的Value输入框中覆盖原来的脚本，点击确定

{OWNER, TABLE, S, COLUMN, DTTPCODE, LENGTH, SIZE, PREC, COMPUTE, NOTNULL, IDENTITY, DOMAIN, DEFAULT, ExtIdentitySeedInc,COMMENT,COLNNAME, 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) as colnE,
    convert(varchar(8000), e.value) as colnF,
    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

选择File→Reverse Engineer→Database 对数据库进行逆向工程，DBMS选择刚才新建的“My Microsoft SQL Server 2008”，点击确定

选择使用刚才新建的“My Microsoft SQL Server 2008”

选项按照下图选中的，点击确定

到此修改配置完成，下面开始生产逆向工程

按照下图步骤操作

点击确定

选择数据库点击OK

点击OK就可以生产注释的逆向工程

上面步骤数据库表的注释comment没有导出来，下面导出数据库表注释comment

选择菜单：工具→Execute Commands→Edit/Run Script，Run运行vbs脚本即可。

将下面的脚本复制到上图的输入框中，点击run，就可生成表的comment注释了

'把pd中那么name想自动添加到comment里面
'如果comment为空,则填入name;如果不为空,则保留不变,这样可以避免已有的注释丢失.

Option Explicit
ValidationMode = True
InteractiveMode = im_Batch 

Dim mdl ' the current model 

' get the current active model
Set mdl = ActiveModel
If (mdl Is Nothing) Then
 MsgBox "There is no current Model "
ElseIf Not mdl.IsKindOf(PdPDM.cls_Model) Then
 MsgBox "The current model is not an Physical Data model. "
Else
 ProcessFolder mdl
End If

' This routine copy name into comment for each table, each column and each view
' of the current folder
Private sub ProcessFolder(folder)
 Dim Tab 'running   table
 for each Tab in folder.tables
  if not tab.isShortcut then
    if trim(tab.comment)="" then '如果有表的注释,则不改变它.如果没有表注释.则把name添加到注释里面.
       tab.comment = tab.name
    end if
 Dim col ' running column
 for each col in tab.columns
  if trim(col.comment)="" then '如果col的comment为空,则填入name,如果已有注释,则不添加;这样可以避免已有注释丢失.
   col.comment= col.name
  end if
 next
  end if
 next  

 Dim view 'running view
 for each view in folder.Views
  if not view.isShortcut and trim(view.comment)=""  then
 view.comment = view.name
  end if
 next  

 ' go into the sub-packages
 Dim f ' running folder
 For Each f In folder.Packages
  if not f.IsShortcut then
 ProcessFolder f
  end if
 Next
end sub

点击run，导出的表注释效果如下

PowerDesigner 15的下载链接: https://pan.baidu.com/s/1ryohBB9RSvKbzxjjaCs69g 提取码: r54q