powerDesigner反向导出数据库表结构

时间:2021-11-10 05:41:23

http://www.cnblogs.com/Bear-Study-Hard/archive/2009/07/02/1515712.html
修改数据库反向生成pd带着字段备注,中间替换的部分改成以下语句


{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 +' ( '+ convert(varchar(8000), p.value) +' ) ' name2,
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,
case when (d.definition = '('''')') then '~''''~' else convert(varchar(8000), d.definition) end,
case (c.is_identity) when 1 then convert(varchar, i.seed_value) + ', ' + convert(varchar, i.increment_value) else '' end as colnD,
convert(varchar(8000), p.value) Comment,
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)
left outer join [%CATALOG%.]sys.types t on (t.system_type_id = c.system_type_id and t.user_type_id = c.user_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 p on (p.major_id = o.object_id and p.minor_id = c.column_id and p.class = 1 and p.name = 'MS_Description')
where
o.type in ('U', 'S', 'V')
[ and u.name = %.q:OWNER%]
[ and o.name=%.q:TABLE%]
order by 1, 2, 3

缺点是:当表字段没有注释时,字段会显示错误;