mysql存贮过程编写

这篇并不是说如何去写存贮过程，只是自己以前在测试过程中主要是查看，获取数据库里的数据，偶尔删除一些脏数据。然后这次因为手动测试组想做一个批量审批的测试，因为流程繁杂，因此想用一种快速的方式去做，于是就想到了存贮过程直接操作db。这也是第一次写这玩意，边查边写，最后也踉踉跄跄的写出来了，其实就和咱们平时用开发语言写脚本差不多，知识基础的语法不通罢了。下面直接贴上代码，留在这里也算是一个节点。

BEGIN

#定义各种变量，其中tid_是从输入参数
    declare title_ VARCHAR(255);
  declare cuid VARCHAR(255);
    declare uid VARCHAR(64);
    declare uid_ VARCHAR(64);
    declare loc INT DEFAULT 2;
    declare size INT DEFAULT 1;
    declare confim VARCHAR(255);
    declare confim_ VARCHAR(255);
    declare cunt INT;

#这里有一个关键字into，就是把查询到的结果保存到title_变量，下面还有一个select title_语句，这表示执行时把变量显示出来，有点类似print的意思
　　select title into title_ from dyoa_task where id = tid_;
    select confirm into confim from dyoa_task where id = tid_;
    update dyoa_task SET status = 1, doing = '', do_after = '', do_berfor = confim WHERE id = tid_;

#concat拼接函数
    #select CONCAT('|',confim) into confim;

#这是获取字符串中“|”符号的个数
    select LENGTH(confim)-LENGTH( REPLACE(confim,'|','') ) into size;
    #select size;

    select count(*) into cunt from dyoa_confirm_list where tid = tid_;

    if cunt > 0 THEN
        delete from dyoa_confirm_list where tid = tid_;
        #select tid_;
    end if;

 while size>0 do

#substring，截取字符串
    select SUBSTRING_INDEX(confim, '|', 1) into cuid;
    #select cuid;

    #select REPLACE(confim,cuid,'') into confim_;
    select SUBSTRING_INDEX(confim, '|', -size) into confim_;
    select confim_;

    set confim = confim_;

    SELECT SUBSTRING(cuid,4) into uid;
    #select uid;
    select REPLACE(uid,'_','') into uid_;
    select uid_;

    set size = size - 1;
    #select size;
    #select POSITION('|' IN confim, '|', size) into loc;
    #select loc;

        #while size>0 do

        insert into dyoa_confirm_list(uid,tid,status,mark,ctime,utime) values(uid_,tid_,1,'shenpi',UNIX_TIMESTAMP(),UNIX_TIMESTAMP());

    #set loc = loc + 1;

 end while;

end if;

END

整个代码功能其实不负责，主要是一些字符串的处理占了一些代码。