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--------------------
mysql8
--------------------
#
新特性
新
!
Document
Store用于使用单个数据库开发SQL和NoSQL文档应用程序
。
新
!
事务数据字典实现为存储在单个InnoDB表空间中的一组SQL表
。
新
!
SQL授予和拒绝用户组权限的角色
,
大大减少了安全工作量
。
新
!
默认为utf8mb4字符集
,
用于更丰富的移动应用程序和国际字符集
。
新
!
公用表表达式也被称为WITH查询已被添加到MySQL
8.0
中
。
新
!
窗口函数以减少代码复杂性并帮助开发人员提高生产力
。
新
!
隐形索引可以更好地管理24x7全天候运行的应用程序的软件升级和数据库更改
。
新
!
降序索引可以消除排序结果的需求并提高性能
。
改进
!
JSON支持包含JSON_TABLE
()
函数
,
它接受JSON数据并将其作为关系表返回
。
改进
!
速度提高了2倍
,
并设置了高达180万次查询
/
秒的新基准测试记录
。
改进
!
OpenSSL
作为MySQL中的默认TLS
/
SSL库
。
改进
!
性能模式
,
查询速度高达30倍
。
改进
!
信息模式
,
查询速度高达100倍
。
改进
!
GIS得到增强以支持地理和空间参考系统
(
SRS
)。
改进
!
Replication和InnoDB集群可以更好地扩展大量应用程序
。
可靠性
需要很少或根本不需要干预来实现持续正常运行轻松使用
“
从下载到开发3分钟
”
的安装和配置
。
低管理
,
只需很少的数据库维护
。
复制
提供灵活的拓扑以实现横向扩展和高可用性
。
分区
以提高超大型数据库环境的性能和管理
。
ACID
Transactions
构建可靠和安全的业务关键型应用程序
。
存储过程
来提高开发人员的生产力
。
触发器
在数据库级执行复杂的业务规则
。
确保敏感信息不受影响的观点
。
#
下载
https
:
//dev.mysql.com/downloads/mysql/
https
:
//dev.mysql.com/downloads/repo/yum/
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