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10分钟掌握数据库建模(六)
2014-11-24 07:14:03 来源: 作者: 【 】 浏览:59
Tags:10分钟 掌握 数据库 建模
--------------------------+ |

| |id | +-> |product_id | |

| |price | | |attribute_key_id | o---------------1:n---------------+

| |quantity | | |attribute_value |

| |... | | +--------------------------+

+-o|category_id | |

|attr_group_id| <--1:n--o

+-------------+

+--------------------------------------------------+

| product_attribute_key |

+--------------------------------------------------+

| 1 | color | list | red,green,blue |

| 2 | sex | bool | Female,Male |

| 3 | qty | input| '' |

+--------------------------------------------------+

国际化语言表

+-----------+ +---------------+

| category | .---+ | category_lang |

|-----------| / | +---------------+

+-->|id | <---+ +--o |category_id |

| |title | | |language_id | o---+

| |description| 1:n |name | | +-------------+

| |status | | +---------------+ . | language |

| |parent_id | o---+ \ +-------------+

| +-----------+ >--> |id |

1:n / |lang |

| +------------+ ' |status |

| | product | | +-------------+

| +------------+ +--------------+ |

| |id | <---+ | product_lang | |

| |price | | +--------------+ |

| |quantity | +---o |product_id | |

| |... | |language_id | o-----+

+-o |category_id | |name |

+------------+ +--------------+

Workflow

+------------+ +---------------+ +-----------+

| user | | role_has_user | | role |

+------------+ +---------------+ +-----------+

|id |o-+ |id | +->|id |<-+

|node_id | +->|user_id | | |name | |

|up_id | |role_id |o-+ |description| |

+------------+ +---------------+ +-----------+ |

|

+----------------+ +------------+ |

| workflow | | job | |

+----------------+ +------------+ |

+->|id | +->|id | |

| |job_id |o-+ |name | |

+-o|up_id | |role_id |o------------------+

| | |description |

+----------------+ +------------+

内容版本控制

主表

CREATE TABLE `article` (

`article_id` MEDIUMINT(8) UNSIGNED NOT NULL AUTO_INCREMENT,

`cat_id` SMALLINT(5) NOT NULL DEFAULT '0',

`title` VARCHAR(150) NOT NULL DEFAULT '',

`content` LONGTEXT NOT NULL,

`author` VARCHAR(30) NOT NULL DEFAULT '',

`keywords` VARCHAR(255) NOT NULL DEFAULT '',

PRIMARY KEY (`article_id`),

INDEX `cat_id` (`cat_id`)

)

ENGINE=MyISAM

ROW_FORM

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