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mysql学习笔记创建数据表
mysql学习笔记创建数据表
MySQL学习笔记
_4_
MySQL创建数据表
(下)
MySQL创建数据表
(下)五、数据表类型及存储位置 1、
MySQL
与大多数
数据库
不同,
MySQL
有一个存储引擎概念。
MySQL
可以针对不同的存储需求选择不同的存储引擎。2、showengines;查看
MySQL
所支持的存储引擎storageengine 3、showvariables like ...
MySQL学习笔记
_2_
MySQL创建数据表
(上)
MySQL创建数据表
(上)一、
创建数据表
的SQL语句模型【弱类型】CREATETABLE[IF NOT EXISTS]表名称(字段名1列的类型[属性][索引],字段名2 列的类型[属性][索引],…字段名n列的类型[属性][索引],)[表属性][表字符集];【表名称,字段名需要...
MySQL学习笔记
_3_
MySQL创建数据表
(中)
MySQL创建数据表
(中)三、数据字段属性 1、unsigned【无符号】可以让空间增加一倍 比如可以让-128~127增加到0~255 注意:只能用在数值型字段 2、zerofill【前导零】e.g.createtable if not exists t2(num int(5)zerofill,price float(7,...
1
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云数据库RDS MySQL版
MySQL 是全球最受欢迎的开源数据库,阿里云MySQL版 通过深度的内核优化和独享实例提供稳定极致的数据库性能,同时灵活的部署架构及产品形态,可满足不同场景下的数据库需求。
了解详情
管理控制台
在线咨询
最新活动
MySQL 1年仅19.9元
数据库专场优惠
快速入门
帮助文档
快速入门
最佳实践
SaaS上云数据库
数据库客户案例合集
产品推荐
云数据库PolarDB
云原生数据仓库MySQL
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云数据库RDS MySQL版
MySQL 是全球最受欢迎的开源数据库,阿里云MySQL版 通过深度的内核优化和独享实例提供稳定极致的数据库性能,同时灵活的部署架构及产品形态,可满足不同场景下的数据库需求。
了解详情
管理控制台
在线咨询
最新活动
MySQL 1年仅19.9元
数据库专场优惠
快速入门
帮助文档
快速入门
最佳实践
SaaS上云数据库
数据库客户案例合集
产品推荐
云数据库PolarDB
云原生数据仓库MySQL