我有一本书,对数据库进行细分,并创建网站,以配合这一系统。 (zend-db-model-generator). 是否有办法在营地内配备一个DBMS的先天指挥系统,以便处理每一类垃圾,然后返回表结构?
因此,如果一度使用假车司机,一度使用假车,一度使用后方车,则该车将回到桌椅结构。
唯一的解决办法是获得b类,转而使用每桶制,执行适当的指挥。
我有一本书,对数据库进行细分,并创建网站,以配合这一系统。 (zend-db-model-generator). 是否有办法在营地内配备一个DBMS的先天指挥系统,以便处理每一类垃圾,然后返回表结构?
因此,如果一度使用假车司机,一度使用假车,一度使用后方车,则该车将回到桌椅结构。
唯一的解决办法是获得b类,转而使用每桶制,执行适当的指挥。
在我能够告诉......的情况下,采用同样的格言似乎是不可能的。
About your idea of going through the database to extract informations about each table to generate some PHP classes, that s one of the things that Doctrine (the most famous PHP ORM) does.
如果您下载,并查看Doctrine/Import/[DatabaseType].php
的课堂,请看一下每一类数据库的情况。
例如,MySQL在中使用以下编码。 Doctrine_Import_Mysql
:
listTableFields => DESCRIBE %s ,
另一方面,关于邮政总局,请在<条码>上填写以下表格:
listTableColumns => "SELECT
a.attnum,
a.attname AS field,
t.typname AS type,
format_type(a.atttypid, a.atttypmod) AS complete_type,
a.attnotnull AS isnotnull,
(SELECT t
FROM pg_index
WHERE c.oid = pg_index.indrelid
AND a.attnum = ANY (pg_index.indkey)
AND pg_index.indisprimary = t
) AS pri,
(SELECT pg_attrdef.adsrc
FROM pg_attrdef
WHERE c.oid = pg_attrdef.adrelid
AND pg_attrdef.adnum=a.attnum
) AS default
FROM pg_attribute a, pg_class c, pg_type t
WHERE c.relname = %s
AND a.attnum > 0
AND a.attrelid = c.oid
AND a.atttypid = t.oid
ORDER BY a.attnum",
这并非易事,似乎^。
And, farther down each class, there is a method called listTableColumns
-- which is not the same for each database type...
因此,对事物的猜测不会像你所希望的那样简单。
但是,作为副句子:也许你可以将理论用于你的项目的这一部分——可能比重新发明轮车更快;-
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