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MySQL #54
Comments
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column typesint标准SQL中有
显示长度
浮点型
date & time
字符串类型
二进制类型
约束
自增( auto_incrment )
类型必须为 |
select
属性列表
可以使用 case 语句case语句可作为一个属性列
where运算符
字符串
in
between ... and ...
IS [not] NULL注意 子查询in 子查询
运算符 子查询子查询结果是一个标量结果, 单值
exists 子查询
判断子查询是否有结果 any/all 子查询
任意 / 所有, 都满足where条件 group by
LIMIT
UNION将两个查询结果合并
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node-mysql
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waterline + sails-mysql |
Sequelize |
索引index method
index type
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mysql 函数 |
datetime 相关 |
mysql collection.
resources
video
blogs
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