CREATE USER 'jirauser' IDENTIFIED BY 'jirauser';CREATE DATABASE jiradb CHARACTER SET utf8mb4 COLLATE utf8mb4_bin;grant all on jiradb.* to 'jirauser'@’%' identified by 'jirauser';CREATE USER 'confluence' IDENTIFIED BY 'whsir'; create database confluence character set utf8 collate utf8_bi...【阅读全文】
4、Choose two.Examine these commands that you executed and the results:WHERE USERHOST = 'fwuser@localhost' ; -------------mysql> SELECT RULE FROM INFORMATION_SCHEMA.MYSQL_FIREWALL_WHITELISTmysql> CALL mysql.sp_set_firewall_mode('fwuser@localhost' , 'RESET') ;...【阅读全文】
Examine this statement, which executes successfully:You want to improve the performance of this query:FROM world.cityWhich change enables the query to succeed while accessing fewer rows?B) ALTER TABLE world.city ADD SPATIAL INDEX (Name) ;D) ALTER TABLE world.city ADD FULLTEXT I...【阅读全文】
CREATE TABLE `employees` ( `emp_no` int(11) NOT NULL, `birth_date` date NOT NULL, `first_name` varchar(14) NOT NULL, `last_name` varchar(16) NOT NULL, `gender` char(1) NOT NULL, `hire_date` date NOT NULL,PRIMARY KEY (`emp_no`)); 输出描述:好了题目出来了,先建表然后,插入如下测试代码se...【阅读全文】
博客文章除注明转载外,均为原创。转载请注明出处。本文链接地址:http://blog.chinaunix.net/uid-31396856-id-5787793.html1、介绍 MySQL 8.0实现了直方图的统计。数据字典表column_statistics储存了相关列值的直方图统计信息,提供列数据分布情况,以用于优化器构建查询执行计划。执行ANALYZE TAB...【阅读全文】