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                                                                              Navicat Premium快速导出数据库ER图和数据字典

                                                                              时间:2017-04-29 18:43:36      阅读:6960      评论:0      收藏:0      [点我收藏+]

                                                                              标签:cat   编号   navicat   mysq   字典   length   inner   sql   mysql   

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                                                                              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

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                                                                              然后,选择导出格式:

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                                                                              选择导出的地址和输入文件的名称

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                                                                               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

                                                                               

                                                                              Navicat Premium快速导出数据库ER图和数据字典

                                                                              标签:cat   编号   navicat   mysq   字典   length   inner   sql   mysql   

                                                                              原文地址:http://www.cnblogs.com/shy1766IT/p/6785605.html

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