Navicat Premium快速导出数据库ER图和数据字典

2024-01-16 04:16| 来源: 网络整理| 查看: 265

2.快速导出数据库数据字典：

SQL Server 数据库，生成数据字典

use YourDatabase --指定要生成数据字典的数据库 go SELECT 表名=case when a.colorder=1 then d.name else '' end, 表说明=case when a.colorder=1 then isnull(f.value,'') else '' end, 字段序号=a.colorder, 字段名=a.name, 标识=case when COLUMNPROPERTY(a.id,a.name,'IsIdentity')=1 then '√'else '' end, 主键=case when exists(SELECT 1 FROM sysobjects where xtype='PK' and name in ( SELECT name FROM sysindexes WHERE indid in( SELECT indid FROM sysindexkeys WHERE id = a.id AND colid=a.colid ))) then '√' else '' end, 类型=b.name, 占用字节数=a.length, 长度=COLUMNPROPERTY(a.id,a.name,'PRECISION'), 小数位数=isnull(COLUMNPROPERTY(a.id,a.name,'Scale'),0), 允许空=case when a.isnullable=1 then '√'else '' end, 默认值=isnull(e.text,''), 字段说明=isnull(g.[value],'') FROM syscolumns a left join systypes b on a.xtype=b.xusertype inner join sysobjects d on a.id=d.id and d.xtype='U' and d.name'dtproperties' left join syscomments e on a.cdefault=e.id left join sys.extended_properties g on a.id=g.major_id and a.colid=g.minor_id left join sys.extended_properties f on d.id=f.major_id and f.minor_id =0 --where d.name='要查询的表' --如果只查询指定表,加上此条件 order by a.id,a.colorder

或者将表头赋值放在后面：

-- 数据字典 SELECT (CASE WHEN a.colorder = 1 THEN d.name ELSE '' END) 表名 ,a.colorder 字段序号 ,a.name 字段名 ,(CASE WHEN COLUMNPROPERTY(a.id, a.name, 'IsIdentity') = 1 THEN '√' ELSE '' END) 标识 ,(CASE WHEN (SELECT COUNT(*) FROM sysobjects WHERE (name IN (SELECT name FROM sysindexes WHERE (id = a.id) AND (indid IN (SELECT indid FROM sysindexkeys WHERE (id = a.id) AND (colid IN (SELECT colid FROM syscolumns WHERE (id = a.id) AND (name = a.name)) )) )) ) AND (xtype = 'PK')) > 0 THEN '√' ELSE '' END) 主键 ,b.name 类型 ,a.length 占用字节数 ,COLUMNPROPERTY(a.id, a.name, 'PRECISION') AS 长度 ,ISNULL(COLUMNPROPERTY(a.id, a.name, 'Scale'), 0) AS 小数位数 ,(CASE WHEN a.isnullable = 1 THEN '√' ELSE '' END) 允许空 ,ISNULL(e.text, '') 默认值 ,ISNULL(g.[value], '') AS 字段说明 FROM syscolumns a LEFT JOIN systypes b ON a.xtype = b.xusertype INNER JOIN sysobjects d ON a.id = d.id AND d.xtype = 'U' AND d.name 'dtproperties' LEFT JOIN syscomments e ON a.cdefault = e.id LEFT JOIN sys.extended_properties g ON a.id = g.major_id AND a.colid = g.major_id ORDER BY a.id, a.colorder

接下来将数据字典导出：

首先，点击右上角的导出

然后，选择导出格式：

选择导出的地址和输入文件的名称

参考：https://www.idaima.com/article/3083

MySQL，生成数据字典

USE information_schema; SELECT T.TABLE_SCHEMA AS '数据库名称', T.TABLE_NAME AS '表名', T.TABLE_TYPE AS '表类型', T. ENGINE AS '数据库引擎', C.ORDINAL_POSITION AS '字段编号', C.COLUMN_NAME AS '字段名', C.COLUMN_TYPE AS '数据类型', C.IS_NULLABLE AS '允许为空', C.COLUMN_KEY AS '键类型', C.EXTRA AS '自增属性', C.CHARACTER_SET_NAME AS '编码名称', C.COLUMN_COMMENT AS '字段说明' FROM COLUMNS C INNER JOIN TABLES T ON C.TABLE_SCHEMA = T.TABLE_SCHEMA AND C.TABLE_NAME = T.TABLE_NAME WHERE T.TABLE_SCHEMA = 'mysql' --指定要生成数据字典的数据库

参考：http://www.jianshu.com/p/f491d0d3c503

此随笔或为自己所写、或为转载于网络。仅用于个人收集及备忘。

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