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MySQL 5.7如何不同于MySQL 8.0?
原标题:How is MySQL 5.7 different from MySQL 8.0?

最近,我审议了指数如何影响平缓工作,以及能否改变令人厌恶的孤立状态。

然而,我发现,国际比较方案没有在MySQL 8.0生效,而是在5.7年内开展工作。 重新提出步骤如下:

  1. Prepare table and data
CREATE TABLE `fruit` (
  `id` bigint NOT NULL AUTO_INCREMENT,
  `name` varchar(32) NOT NULL,
  `age` int DEFAULT NULL,
  `data` varchar(16) DEFAULT   ,
PRIMARY KEY (`id`),
KEY `i_age_name` (`age`,`name`)
ENGINE=InnoDB;

Prepare data
delimiter ;;
CREATE PROCEDURE `load_data`()
BEGIN
DECLARE i int DEFAULT 1;
WHILE i < 300 DO
INSERT INTO fruit (`name`, `age`, `data`) VALUES 
            (substring(MD5(RAND()),1,20), i / 10 + 1,  test data ),
            (substring(MD5(RAND()),1,20), i / 10 + 1,  hello world );
SET i = i + 1;
END WHILE;
END ;;
delimiter ;

call load_data();

我们希望它外加一栏能够显示指数状况,但我不知道为什么?

问题回答

我们希望外列一栏能够显示指数状况,但没有发现,我不知道情况如何。





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