写了一个存储过程

-- 创建存储过程之前需判断该存储过程是否已存在，若存在则删除
DROP PROCEDURE IF EXISTS sgjan;
-- 创建存储过程
CREATE PROCEDURE sgjan()
BEGIN
       -- 定义变量
    DECLARE s int DEFAULT 0;
    DECLARE p varchar(255);
    DECLARE s1 varchar(255);
    DECLARE k varchar(256);
    DECLARE r varchar(256);
    DECLARE u varchar(256);
    -- 定义游标，并将sql结果集赋值到游标中
    DECLARE report CURSOR FOR
       (
           SELECT DATE_FORMAT( DATE_SUB( NOW( ), INTERVAL ac DAY ), '%Y-%m-%d' ) AS dateTime FROM
           ( SELECT @ai := @ai + 1 AS ac FROM
           ( SELECT 1 UNION SELECT 2 UNION SELECT 3 UNION SELECT 4 UNION SELECT 5 ) ac1,
           ( SELECT 1 UNION SELECT 2 UNION SELECT 3 UNION SELECT 4 UNION SELECT 5 UNION SELECT 6 ) ac2,
           ( SELECT @ai := 0 ) xc0 ) ad
       );
    -- 声明当游标遍历完后将标志变量置成某个值
    DECLARE CONTINUE HANDLER FOR NOT FOUND SET s=1;
    -- 打开游标
    open report;
        -- 将游标中的值赋值给变量，注意：变量名不要和返回的列名同名，变量顺序要和sql结果列的顺序一致
        fetch report into u;
        -- 当s不等于1，也就是未遍历完时，会一直循环
        while s<>1 do
                   -- 执行业务逻辑
                   INSERT INTO xhx_project_statistic VALUES
           (
               (select replace(uuid(),"-","") time),org_id,org_code,device_type,device_use,(select FLOOR(RAND()*10)),
               (select FLOOR(RAND()*10)),(select FLOOR(RAND()*10)),(select FLOOR(RAND()*10)),(select FLOOR(RAND()*10)),
               (select FLOOR(RAND()*10)),(select FLOOR(RAND()*10)),(select FLOOR(RAND()*10)),u,NULL, NULL,NULL, NULL
           ); # 往test表添加数据
            -- 当s等于1时表明遍历以完成，退出循环
            fetch report into u;
        end while;
    -- 关闭游标
    close report;
END;
call sgjan;
select * from xhx_project_statistic;

来源：oschina

链接：https://my.oschina.net/u/4253180/blog/3194769

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存储过程

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