w同结构表读写合并。

 DROP PROCEDURE IF EXISTS w_ww_amzasin;

 DELIMITER /w/

 CREATE PROCEDURE w_ww_amzasin()

 BEGIN

   DECLARE done INT DEFAULT FALSE;

   DECLARE w_asin VARCHAR(16);

   DECLARE w_country VARCHAR(6);

   DECLARE wcur CURSOR FOR

                         SELECT asin,country FROM grab_amzreviews_asins

                                 UNION DISTINCT

                         SELECT asin,country FROM grab_amzsimilar_seller_asins

                                 UNION DISTINCT

                         SELECT asin,country FROM grab_amzlisting

                                 WHERE CONCAT(asin,LOWER(country)) NOT IN

                                     (SELECT CONCAT(asin,LOWER(country)) FROM amzasin) ;

   DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = TRUE;

   OPEN wcur;

   read_loop: LOOP

     FETCH wcur INTO w_asin,w_country;

     IF done THEN LEAVE read_loop;

     END IF;

         SET @w_nothhtps='www.amazon.';

         SET @w_most=CONCAT(LOWER(w_country),'/product/dp/',w_asin);

         CASE  LOWER(w_country)

                 WHEN 'ca' THEN SELECT 'w';

                 WHEN 'in' THEN SELECT 'w';

                 WHEN 'es' THEN SELECT 'w';

                 WHEN 'it' THEN SELECT 'w';

                 WHEN 'fr' THEN SELECT 'w';

                 WHEN 'jp' THEN SET @w_most=CONCAT('co.',@w_most);

                 WHEN 'uk' THEN SET @w_most=CONCAT('co.',@w_most);

                 WHEN 'mx' THEN SET @w_most=CONCAT('com.',@w_most);

                 WHEN 'us' THEN SET @w_most=CONCAT('com/gp/product/',w_asin);

       ELSE

         BEGIN

         END;

     END CASE;

         SET @w_nothhtps=CONCAT(@w_nothhtps,@w_most);

         SET @wtmp = CONCAT('INSERT INTO  amzasin (asin,country,url) VALUES ( "',w_asin,'","',w_country,'","',@w_nothhtps,'")');

         PREPARE  stmt FROM @wtmp ;

         EXECUTE  stmt ;

         DROP PREPARE stmt;

   END LOOP;

   CLOSE wcur;

 END/w/

 DELIMITER;

 CALL w_ww_amzasin( );

 DROP PROCEDURE IF EXISTS w_ww_amzasin;

 DELIMITER /w/

 CREATE PROCEDURE w_ww_amzasin()

 BEGIN

   DECLARE done INT DEFAULT FALSE;

   DECLARE w_asin VARCHAR(16);

   DECLARE w_country VARCHAR(6);

   DECLARE wcur CURSOR FOR SELECT asin,country FROM grab_amzlisting WHERE CONCAT(asin,LOWER(country)) NOT IN (SELECT CONCAT(asin,LOWER(country)) FROM amzasin );

   DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = TRUE;

   OPEN wcur;

   read_loop: LOOP

     FETCH wcur INTO w_asin,w_country;

     IF done THEN LEAVE read_loop;

     END IF;

         SET @w_nothhtps='www.amazon.';

         SET @w_most=CONCAT(LOWER(w_country),'/product/dp/',w_asin);

         CASE  LOWER(w_country)

                 WHEN 'ca' THEN SELECT 'w';

                 WHEN 'in' THEN SELECT 'w';

                 WHEN 'es' THEN SELECT 'w';

                 WHEN 'it' THEN SELECT 'w';

                 WHEN 'fr' THEN SELECT 'w';

                 WHEN 'jp' THEN SET @w_most=CONCAT('co.',@w_most);

                 WHEN 'uk' THEN SET @w_most=CONCAT('co.',@w_most);

                 WHEN 'mx' THEN SET @w_most=CONCAT('com.',@w_most);

                 WHEN 'us' THEN SET @w_most=CONCAT('com/gp/product/',w_asin);

       ELSE

         BEGIN

         END;

     END CASE;

         SET @w_nothhtps=CONCAT(@w_nothhtps,@w_most);

         SET @wtmp = CONCAT('INSERT INTO  amzasin (asin,country,url) VALUES ( "',w_asin,'","',w_country,'","',@w_nothhtps,'")');

         PREPARE  stmt FROM @wtmp ;

         EXECUTE  stmt ;

         DROP PREPARE stmt;

   END LOOP;

   CLOSE wcur;

 END/w/

 DELIMITER;

 CALL w_ww_amzasin( );

 DROP PROCEDURE IF EXISTS w_ww_amzasin;

 DELIMITER /w/

 CREATE PROCEDURE w_ww_amzasin()

 BEGIN

   DECLARE done INT DEFAULT FALSE;

   DECLARE w_asin VARCHAR(16);

   DECLARE w_country VARCHAR(6);

   DECLARE wcur CURSOR FOR SELECT asin,country FROM grab_amzsimilar_seller_asins WHERE CONCAT(asin,LOWER(country)) NOT IN (SELECT CONCAT(asin,LOWER(country)) FROM amzasin );

   DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = TRUE;

   OPEN wcur;

   read_loop: LOOP

     FETCH wcur INTO w_asin,w_country;

     IF done THEN LEAVE read_loop;

     END IF;

         SET @w_nothhtps='www.amazon.';

         SET @w_most=CONCAT(LOWER(w_country),'/product/dp/',w_asin);

         CASE  LOWER(w_country)

                 WHEN 'ca' THEN SELECT 'w';

                 WHEN 'in' THEN SELECT 'w';

                 WHEN 'es' THEN SELECT 'w';

                 WHEN 'it' THEN SELECT 'w';

                 WHEN 'fr' THEN SELECT 'w';

                 WHEN 'jp' THEN SET @w_most=CONCAT('co.',@w_most);

                 WHEN 'uk' THEN SET @w_most=CONCAT('co.',@w_most);

                 WHEN 'mx' THEN SET @w_most=CONCAT('com.',@w_most);

                 WHEN 'us' THEN SET @w_most=CONCAT('com/gp/product/',w_asin);

       ELSE

         BEGIN

         END;

     END CASE;

         SET @w_nothhtps=CONCAT(@w_nothhtps,@w_most);

         SET @wtmp = CONCAT('INSERT INTO  amzasin (asin,country,url) VALUES ( "',w_asin,'","',w_country,'","',@w_nothhtps,'")');

         PREPARE  stmt FROM @wtmp ;

         EXECUTE  stmt ;

         DROP PREPARE stmt;

   END LOOP;

   CLOSE wcur;

 END/w/

 DELIMITER;

 CALL w_ww_amzasin( );

 DROP PROCEDURE IF EXISTS w_ww_amzasin;

 DELIMITER /w/

 CREATE PROCEDURE w_ww_amzasin()

 BEGIN

   DECLARE done INT DEFAULT FALSE;

   DECLARE w_asin VARCHAR(16);

   DECLARE w_country VARCHAR(6);

   DECLARE wcur CURSOR FOR SELECT asin,country FROM grab_amzreviews_asins WHERE CONCAT(asin,LOWER(country)) NOT IN (SELECT CONCAT(asin,LOWER(country)) FROM amzasin );

   DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = TRUE;

   OPEN wcur;

   read_loop: LOOP

     FETCH wcur INTO w_asin,w_country;

     IF done THEN LEAVE read_loop;

     END IF;

         SET @w_nothhtps='www.amazon.';

         SET @w_most=CONCAT(LOWER(w_country),'/product/dp/',w_asin);

         CASE  LOWER(w_country)

                 WHEN 'ca' THEN SELECT 'w';

                 WHEN 'in' THEN SELECT 'w';

                 WHEN 'es' THEN SELECT 'w';

                 WHEN 'it' THEN SELECT 'w';

                 WHEN 'fr' THEN SELECT 'w';

                 WHEN 'jp' THEN SET @w_most=CONCAT('co.',@w_most);

                 WHEN 'uk' THEN SET @w_most=CONCAT('co.',@w_most);

                 WHEN 'mx' THEN SET @w_most=CONCAT('com.',@w_most);

                 WHEN 'us' THEN SET @w_most=CONCAT('com/gp/product/',w_asin);

       ELSE

         BEGIN

         END;

     END CASE;

         SET @w_nothhtps=CONCAT(@w_nothhtps,@w_most);

         SET @wtmp = CONCAT('INSERT INTO  amzasin (asin,country,url) VALUES ( "',w_asin,'","',w_country,'","',@w_nothhtps,'")');

         PREPARE  stmt FROM @wtmp ;

         EXECUTE  stmt ;

         DROP PREPARE stmt;

   END LOOP;

   CLOSE wcur;

 END/w/

 DELIMITER;

 CALL w_ww_amzasin( );

UNION DISTINCT的更多相关文章

  1. UNION并集运算

    在集合论中,两个集合(集合A和集合B)的并集是一个包含集合A和B中所有元素的集合.换句话说,如果一个元素属于任何一个输入集合,那么它也属于结果集.如图所示.

  2. sql注入绕过union select过滤

    # # # #WAF Bypassing Strings: /*!%55NiOn*/ /*!%53eLEct*/ ,,)-- - +union+distinct+select+ +union+dist ...

  3. MySQL学习（五） UNION与UNION ALL

    UNION用于把来自许多SELECT语句的结果组合到一个结果集合中,也叫联合查询. SELECT ... UNION [ALL | DISTINCT] SELECT ... [UNION [ALL | ...

  4. UNION WHERE

    w条件语句的作用域. SELECT * FROM ( SELECT asin, LOWER(country) AS country FROM grab_amzreviews_asins UNION D ...

  5. UNION（并集）集合运算

    在集合论中,两个集合(记为集合A和B)的并集是一个包含集合A和B中所有元素的集合.换句话说,如果一个元素属于任何一个输入集合,那么它也属于结果集. 在T-SQL中,UNION 集合运算可以将两个输入查 ...

  6. MySQL UNION 查询

    UNION 用来合并多个 SELECT 结果. 考察如下两个表: # t1 +----+---------+ | id | pattern | +----+---------+ | 1 | Divot ...

  7. mysql语法之union

    UNION的语法结构: SELECT ... UNION [ ALL | DISTINCT ]  SELECT .... [ UNION [ ALL | DISTINCT ] SELECT ..... ...

  8. mysql中的union操作（整理）

    mysql中的union操作(整理) 一.总结 一句话总结: union两侧的字段数和字段类型要是一样的 union可以接多个 orderby和排序可以在最后的union组合之后 1.union简单实 ...

  9. MySQL SELECT语法（四）UNION语法详解

    源自MySQL 5.7 官方手册:13.2.9.3 UNION Syntax 一.UNION语法 UNION用于将多个SELECT语句的结果合并到一个结果集中. SELECT ... UNION [A ...

随机推荐

  1. CConfig类

    #ifndef __CONFIG_H__ #define __CONFIG_H__ #include "GameFrameHead.h" //图片信息 struct ImageIn ...

  2. 华中农业大学校赛 I Catching Dogs

    Catching Dogs Time Limit: 1 Sec  Memory Limit: 128 MBSubmit: 1140  Solved: 298[Submit][Status][Web B ...

  3. 纯css3实现的win8加载动画

    今天给大家分享一款纯css3实现的win8加载动画.在这款实例中动画效果完全由css3实现.一起看下效果图: 在线预览   源码下载 实现的代码. html代码: <div class=&quo ...

  4. pentestbox使用教程

    pentestbox工具列表:https://tools.pentestbox.org/ freebuf入门实战:http://www.freebuf.com/sectool/125881.html ...

  5. Netty4.x中文教程系列(七)UDP协议

    将近快一年时间没有更新Netty的博客.一方面原因是因为项目进度的问题.另外一方面是博主有一段时间去熟悉Unity3D引擎. 本章节主要记录博主自己Netty的UDP协议使用. 1. 构建UDP服务端 ...

  6. linux用户空间和内核空间（内核高端内存）_转

    转自:Linux用户空间与内核空间(理解高端内存) 参考: 1. 进程内核栈.用户栈 2. 解惑-Linux内核空间 3. linux kernel学习笔记-5 内存管理   Linux 操作系统和驱 ...

  7. 关于Unity中的transform组件（二）

    在Scene视图中的蓝色网格,每一格默认是1米 一.沿着Z轴每秒移动10米 Transform cube_trans; void start(){ this.cube_trans=this.trans ...

  8. 【BZOJ】1649: [Usaco2006 Dec]Cow Roller Coaster（dp）

    http://www.lydsy.com/JudgeOnline/problem.php?id=1649 又是题解... 设f[i][j]表示费用i长度j得到的最大乐趣 f[i][end[a]]=ma ...

  9. Spring HttpIvoker实现Java的远程调用

    Spring HttpInvoker一种JAVA远程方法调用框架实现,使用的是HTTP协议,允许穿透防火墙,使用JAVA系列化方式,但仅限于Spring应用之间使用,即调用者与被调用者都必须是使用Sp ...

  10. iOS开发之--使用storyboard进行跳转

    iOS开发中使用故事板进行开发是非常高效的一种方式,虽然有这样那样的问题,但是不得不承认,使用sb可以在最短的时间内完成整个项目的布局,节约开发者大量的时间,而且便于修改,非常直观,虽然可能不太灵活, ...