SQL数据库数据字典怎么生成的？

Posted 2023-05-01

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我用的是sql server2005 请问如何生成数据字典

　　数据字典是关于数据的信息的集合，也就是对数据流图中包含的所有元素的定义的集合。
　　数据库数据字典是一组表和视图结构。它们存放在SYSTEM表空间中。
数据库数据字典不仅是每个数据库的中心。而且对每个用户也是非常重要的信息。用户可以用SQL语句访问数据库数据字典。
　　生成数据库参考代码如下：

　　SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author: <Carbe>
-- Create date: <2014-09-19>
-- Description: <生成数据库字典>
-- =============================================
CREATE PROCEDURE [dbo].[CreateDatabaseDictionarie]

AS

BEGIN
DECLARE @TableName nvarchar(35),@htmls varchar(8000)
DECLARE @字段名称 VARCHAR(200)
DECLARE @类型 VARCHAR(200)
DECLARE @长度 VARCHAR(200)
DECLARE @数值精度 VARCHAR(200)
DECLARE @小数位数 VARCHAR(200)
DECLARE @默认值 VARCHAR(200)
DECLARE @允许为空 VARCHAR(200)
DECLARE @外键 VARCHAR(200)
DECLARE @主键 VARCHAR(200)
DECLARE @描述 VARCHAR(200)

SET NOCOUNT ON;

DECLARE Tbls CURSOR
FOR
Select distinct Table_name
FROM INFORMATION_SCHEMA.COLUMNS
order by Table_name
OPEN Tbls
PRINT \'<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">\'
PRINT \'<html xmlns="http://www.w3.org/1999/xhtml">\'
PRINT \' <head>\'
PRINT \' <title>KC管理系统-数据库字典</title>\'
PRINT \' <style type="text/css">\'
PRINT \' bodymargin:0; font:11pt "arial", "微软雅黑"; cursor:default;\'
PRINT \' .tableBoxmargin:10px auto; padding:0px; width:1000px; height:auto; background:#FBF5E3; border:1px solid #45360A\'
PRINT \' .tableBox h3 font-size:12pt; height:30px; line-height:30px; background:#45360A; padding:0px 0px 0px 15px; color:#FFF; margin:0px; text-align:left \'
PRINT \' .tableBox table width:1000px; padding:0px \'
PRINT \' .tableBox th height:25px; border-top:1px solid #FFF; border-left:1px solid #FFF; background:#F7EBC8; border-right:1px solid #E0C889; border-bottom:1px solid #E0C889 \'
PRINT \' .tableBox td height:25px; padding-left:10px; border-top:1px solid #FFF; border-left:1px solid #FFF; border-right:1px solid #E0C889; border-bottom:1px solid #E0C889 \'
PRINT \' </style>\'
PRINT \' </head>\'
PRINT \' <body>\'
FETCH NEXT FROM Tbls INTO @TableName
WHILE @@FETCH_STATUS = 0
BEGIN
Select @htmls = \' <h3>\' + @TableName + \' : \'+ CAST(Value as varchar(1000)) + \'</h3>\'
FROM sys.extended_properties AS A
WHERE A.major_id = OBJECT_ID(@TableName)
and name = \'MS_Description\' and minor_id = 0
PRINT \' <div class="tableBox">\'
PRINT @htmls
PRINT \' <table cellspacing="0">\'
PRINT \' <tr>\'
PRINT \' <th>字段名称</th>\'
PRINT \' <th>类型</th>\'
PRINT \' <th>长度</th>\'
PRINT \' <th>数值精度</th>\'
PRINT \' <th>小数位数</th>\'
PRINT \' <th>默认值</th>\'
PRINT \' <th>允许为空</th>\'
PRINT \' <th>外键</th>\'
PRINT \' <th>主键</th>\'
PRINT \' <th>描述</th>\'
PRINT \' </tr>\'

DECLARE TRows CURSOR
FOR
SELECT
\' <td>\' + CAST(clmns.name AS VARCHAR(35)) + \'</td>\',
\' <td>\' + CAST(udt.name AS CHAR(15)) + \'</td>\' ,
\' <td>\' + CAST(CAST(CASE WHEN typ.name IN (N\'nchar\', N\'nvarchar\') AND clmns.max_length <> -1 THEN clmns.max_length/2 ELSE clmns.max_length END AS INT) AS VARCHAR(20)) + \'</td>\',
\' <td>\' + CAST(CAST(clmns.precision AS INT) AS VARCHAR(20)) + \'</td>\',
\' <td>\' + CAST(CAST(clmns.scale AS INT) AS VARCHAR(20)) + \'</td>\',
\' <td>\' + isnull(CAST(cnstr.definition AS VARCHAR(20)),\'\') + \'</td>\',
\' <td>\' + CAST(clmns.is_nullable AS VARCHAR(20)) + \'</td>\' ,
\' <td>\' + CAST(clmns.is_computed AS VARCHAR(20)) + \'</td>\' ,
\' <td>\' + CAST(clmns.is_identity AS VARCHAR(20)) + \'</td>\' ,
\' <td>\' + ISNULL(CAST(exprop.value AS VARCHAR(500)),\'\') + \'</td>\'
FROM sys.tables AS tbl
INNER JOIN sys.all_columns AS clmns ON clmns.object_id=tbl.object_id
LEFT OUTER JOIN sys.indexes AS idx ON idx.object_id = clmns.object_id AND 1 =idx.is_primary_key
LEFT OUTER JOIN sys.index_columns AS idxcol ON idxcol.index_id = idx.index_id AND idxcol.column_id = clmns.column_id AND idxcol.object_id = clmns.object_id AND 0 = idxcol.is_included_column
LEFT OUTER JOIN sys.types AS udt ON udt.user_type_id = clmns.user_type_id
LEFT OUTER JOIN sys.types AS typ ON typ.user_type_id = clmns.system_type_id AND typ.user_type_id = typ.system_type_id
LEFT JOIN sys.default_constraints AS cnstr ON cnstr.object_id=clmns.default_object_id
LEFT OUTER JOIN sys.extended_properties exprop ON exprop.major_id = clmns.object_id AND exprop.minor_id = clmns.column_id AND exprop.name = \'MS_Description\'
WHERE (tbl.name = @TableName and exprop.class = 1) --I don\'t wand to include comments on indexes
ORDER BY clmns.column_id ASC
OPEN TRows
FETCH NEXT FROM TRows INTO @字段名称,@类型,@长度,@数值精度,@小数位数,@默认值,@允许为空,@外键,@主键,@描述
WHILE @@FETCH_STATUS = 0
BEGIN
PRINT \' <tr>\'
PRINT @字段名称
PRINT @类型
PRINT @长度
PRINT @数值精度
PRINT @小数位数
PRINT @默认值
PRINT @允许为空
PRINT @外键
PRINT @主键
PRINT @描述
PRINT \' </tr>\'
FETCH NEXT FROM TRows INTO @字段名称,@类型,@长度,@数值精度,@小数位数,@默认值,@允许为空,@外键,@主键,@描述
END
CLOSE TRows
DEALLOCATE TRows

PRINT \' </table>\'
PRINT \' </div>\'
FETCH NEXT FROM Tbls INTO @TableName
END
PRINT \' </body>\'
PRINT \'</html>\'
CLOSE Tbls
DEALLOCATE Tbls
END 参考技术A Visio、PowerDesigner 等工具，都支持正反向工程，可直接生成数据模型。参考技术B 搜索下SqlServer数据字典生成工具参考技术C 给你介绍个软件，自动生成。动软.Net代码自动生成器