阿里云
>
数据类型
>
使用什么数据类型
使用什么数据类型
MySQL 中你应该
使用什么数据类型
表示时间?
我们也将对一些典型的查询做基准测试,然后得出在给定场景下应该
使用什么数据类型
的结论。如果你想直接看结论,请翻到文章最下方。原生的 MySQL Datetime
数据类型
Datetime 数据表示一个时间点。这可以用作日志记录、物联网时间戳、日历...
如果存储长度超过5000,
使用什么数据类型
?
如果存储长度超过5000,
使用什么数据类型
?
想要存储年月日和时分,
使用什么数据类型
?
想要存储年月日和时分,
使用什么数据类型
?
[@徐雷frank][¥20]Java 中应该
使用什么数据类型
来代表价格?
问题来自Java技术沙龙的李博Java线下沙龙报名链接:https://yq.aliyun.com/activity/796
处理大量
数据
时应该
使用什么类型
的
数据
?
处理大量
数据
时应该
使用什么类型
的
数据
?
Java默认
使用
的
数据类型
是
什么
?
Java默认
使用
的
数据类型
是
什么
?
什么
时候
使用
nested
数据类型
?
什么
时候
使用
nested
数据类型
?
哈希密码字段
使用
哪种
数据类型
以及
什么
长度?
我不确定密码哈希的工作原理(稍后将实现),但现在需要创建数据库架构。我正在考虑将密码限制为4-20个字符,但是
据
我了解,加密哈希字符串后的长度将不同。那么,如何将这些密码存储在数据库中呢?
Python 中
使用
最频繁的
数据类型
是
什么
?
Python 中
使用
最频繁的
数据类型
是
什么
?
SQL 通用
数据类型
都有
什么
?又如何
使用
SQL 通用
数据类型
都有
什么
?又如何
使用
1
2
3
>
数据类型什么使用相关内容
.
使用数据类型什么长度
.
存储使用什么数据类型
数据类型更多"什么"相关
.
数据类型什么原因
.
数据类型什么报错
.
存储什么数据类型
.
java什么数据类型
数据类型使用什么相关内容
.
使用数据类型长度
.
使用操作数据类型
.
MaxCompute数据类型使用
.
使用查询数据类型
.
存储使用数据类型
.
mysql使用数据类型
.
数据类型场景使用
.
Redis数据类型使用
.
java使用数据类型
您可能感兴趣
.
Redis数据类型
.
python数据类型
.
c语言数据类型
.
java数据类型
.
是什么数据类型
.
mysql数据类型
.
int数据类型
.
使用数据类型
{"moduleinfo":{"card_count":[{"count_phone":1,"count":1}],"search_count":[{"count_phone":5,"count":5}]},"card":[{"des":"PostgreSQL被业界誉为“最先进的开源数据库”,面向企业复杂SQL处理的OLTP在线事务处理场景,支持NoSQL数据类型(JSON/XML/hstore)、支持GIS地理信息处理。","link1":"https://www.aliyun.com/product/rds/postgresql","link":"https://www.aliyun.com/product/rds/postgresql","icon":"https://img.alicdn.com/tfs/TB1TEFrwamWBuNjy1XaXXXCbXXa-200-200.png","btn2":"了解价格","tip":"轻松处理空间信息,强大NoSQL兼容,支持全文搜索,支持OSS云存储扩展,支持数据仓库,尽在PostgreSQL! 产品动态发布
立即查看
","btn1":"立即开通","link2":"https://www.aliyun.com/price/product#/rds/detail?hash=postgresql","title":"云数据库RDS PostgreSQL版"}],"search":[{"txt":"PostgreSQL产品文档","link":"https://help.aliyun.com/document_detail/26092.html"},{"txt":"ECS上的自建数据库迁移指导","link":"https://help.aliyun.com/document_detail/26627.html"},{"txt":"快速入门PostgreSQL","link":"https://help.aliyun.com/document_detail/26151.html"},{"txt":"PostgreSQL的进阶之路","link":"https://yq.aliyun.com/topic/118"},{"txt":"产品动态","link":"https://www.aliyun.com/product/new?source_type=out_sousuo_feature_0716"}],"countinfo":{"search":{"length_pc":0,"length":0},"card":{"length_pc":0,"length":0}},"simplifiedDisplay":"newEdition","newCard":[{"link":"https://img.alicdn.com/tfs/TB1KM.qIeH2gK0jSZJnXXaT1FXa-1740-328.png","icon":"","contentLink":"https://www.aliyun.com/product/rds/postgresql","title":"云数据库RDS PostgreSQL版","des":"PostgreSQL被业界誉为“最先进的开源数据库”,面向企业复杂SQL处理的OLTP在线事务处理场景,支持NoSQL数据类型(JSON/XML/hstore)、支持GIS地理信息处理。","btn1":"产品详情","link1":"https://www.aliyun.com/product/rds/postgresql","btn2":"管理控制台","link2":"https://rdsnext.console.aliyun.com/?spm=5176.7920951.1393245.4.21614ce1AbbK2V#/rdsList/cn-hangzhou/basic/","btn3":"在线咨询","link3":"https://www.aliyun.com/core/online-consult?from=yAAzuk58kF","infoGroup":[{"infoName":"最新活动","infoContent":{"firstContentName":"PostgreSQL 1年75折","firstContentLink":"https://rds-buy.aliyun.com/nextBuy#/create/rds/PostgreSQL?initData=%7B%22data%22:%7B%22rds_region%22:%22cn-hangzhou%22,%22rds_dbtype%22:%22PostgreSQL%22,%22rds_dbversion%22:%2212.0%22,%22rds_nodetype%22:%22Basic%22,%22rds_web_type%22:%221%22,%22rds_storagetype%22:%22cloud_ssd%22,%22rds_class%22:%22pg.n2.medium.1%22,%22rds_storage%22:%2220%22,%22duration%22:12%7D%7D","lastContentName":"数据库专场优惠","lastContentLink":"https://www.aliyun.com/database/dbfirstbuy"}},{"infoName":"快速入门","infoContent":{"firstContentLink":"https://help.aliyun.com/document_detail/96715.html","firstContentName":"帮助文档","lastContentLink":"https://help.aliyun.com/document_detail/53730.htm","lastContentName":"快速入门"}},{"infoName":"最佳实践","infoContent":{"firstContentLink":"https://help.aliyun.com/document_detail/96772.html","firstContentName":"数据库备份","lastContentLink":"https://www.aliyun.com/database/case","lastContentName":"数据库客户案例合集"}},{"infoName":"产品推荐","infoContent":{"firstContentName":"云原生数据仓库PG版","firstContentLink":"https://www.aliyun.com/product/gpdb","lastContentName":"数据传输DTS","lastContentLink":"https://www.aliyun.com/product/dts"}}],"ifIcon":"img","iconImg":"https://img.alicdn.com/tfs/TB1ASH107L0gK0jSZFtXXXQCXXa-200-200.png"}]}
{"$env":{"JSON":{}},"$page":{"env":"production"},"$context":{"moduleinfo":{"card_count":[{"count_phone":1,"count":1}],"search_count":[{"count_phone":5,"count":5}]},"card":[{"des":"PostgreSQL被业界誉为“最先进的开源数据库”,面向企业复杂SQL处理的OLTP在线事务处理场景,支持NoSQL数据类型(JSON/XML/hstore)、支持GIS地理信息处理。","link1":"https://www.aliyun.com/product/rds/postgresql","link":"https://www.aliyun.com/product/rds/postgresql","icon":"https://img.alicdn.com/tfs/TB1TEFrwamWBuNjy1XaXXXCbXXa-200-200.png","btn2":"了解价格","tip":"轻松处理空间信息,强大NoSQL兼容,支持全文搜索,支持OSS云存储扩展,支持数据仓库,尽在PostgreSQL! 产品动态发布
立即查看
","btn1":"立即开通","link2":"https://www.aliyun.com/price/product#/rds/detail?hash=postgresql","title":"云数据库RDS PostgreSQL版"}],"search":[{"txt":"PostgreSQL产品文档","link":"https://help.aliyun.com/document_detail/26092.html"},{"txt":"ECS上的自建数据库迁移指导","link":"https://help.aliyun.com/document_detail/26627.html"},{"txt":"快速入门PostgreSQL","link":"https://help.aliyun.com/document_detail/26151.html"},{"txt":"PostgreSQL的进阶之路","link":"https://yq.aliyun.com/topic/118"},{"txt":"产品动态","link":"https://www.aliyun.com/product/new?source_type=out_sousuo_feature_0716"}],"countinfo":{"search":{"length_pc":0,"length":0},"card":{"length_pc":0,"length":0}},"simplifiedDisplay":"newEdition","newCard":[{"link":"https://img.alicdn.com/tfs/TB1KM.qIeH2gK0jSZJnXXaT1FXa-1740-328.png","icon":"","contentLink":"https://www.aliyun.com/product/rds/postgresql","title":"云数据库RDS PostgreSQL版","des":"PostgreSQL被业界誉为“最先进的开源数据库”,面向企业复杂SQL处理的OLTP在线事务处理场景,支持NoSQL数据类型(JSON/XML/hstore)、支持GIS地理信息处理。","btn1":"产品详情","link1":"https://www.aliyun.com/product/rds/postgresql","btn2":"管理控制台","link2":"https://rdsnext.console.aliyun.com/?spm=5176.7920951.1393245.4.21614ce1AbbK2V#/rdsList/cn-hangzhou/basic/","btn3":"在线咨询","link3":"https://www.aliyun.com/core/online-consult?from=yAAzuk58kF","infoGroup":[{"infoName":"最新活动","infoContent":{"firstContentName":"PostgreSQL 1年75折","firstContentLink":"https://rds-buy.aliyun.com/nextBuy#/create/rds/PostgreSQL?initData=%7B%22data%22:%7B%22rds_region%22:%22cn-hangzhou%22,%22rds_dbtype%22:%22PostgreSQL%22,%22rds_dbversion%22:%2212.0%22,%22rds_nodetype%22:%22Basic%22,%22rds_web_type%22:%221%22,%22rds_storagetype%22:%22cloud_ssd%22,%22rds_class%22:%22pg.n2.medium.1%22,%22rds_storage%22:%2220%22,%22duration%22:12%7D%7D","lastContentName":"数据库专场优惠","lastContentLink":"https://www.aliyun.com/database/dbfirstbuy"}},{"infoName":"快速入门","infoContent":{"firstContentLink":"https://help.aliyun.com/document_detail/96715.html","firstContentName":"帮助文档","lastContentLink":"https://help.aliyun.com/document_detail/53730.htm","lastContentName":"快速入门"}},{"infoName":"最佳实践","infoContent":{"firstContentLink":"https://help.aliyun.com/document_detail/96772.html","firstContentName":"数据库备份","lastContentLink":"https://www.aliyun.com/database/case","lastContentName":"数据库客户案例合集"}},{"infoName":"产品推荐","infoContent":{"firstContentName":"云原生数据仓库PG版","firstContentLink":"https://www.aliyun.com/product/gpdb","lastContentName":"数据传输DTS","lastContentLink":"https://www.aliyun.com/product/dts"}}],"ifIcon":"img","iconImg":"https://img.alicdn.com/tfs/TB1ASH107L0gK0jSZFtXXXQCXXa-200-200.png"}]}}
云数据库RDS PostgreSQL版
PostgreSQL被业界誉为“最先进的开源数据库”,面向企业复杂SQL处理的OLTP在线事务处理场景,支持NoSQL数据类型(JSON/XML/hstore)、支持GIS地理信息处理。
产品详情
管理控制台
在线咨询
最新活动
PostgreSQL 1年75折
数据库专场优惠
快速入门
帮助文档
快速入门
最佳实践
数据库备份
数据库客户案例合集
产品推荐
云原生数据仓库PG版
数据传输DTS
{"moduleinfo":{"card_count":[{"count_phone":1,"count":1}],"search_count":[{"count_phone":5,"count":5}]},"card":[{"des":"PostgreSQL被业界誉为“最先进的开源数据库”,面向企业复杂SQL处理的OLTP在线事务处理场景,支持NoSQL数据类型(JSON/XML/hstore)、支持GIS地理信息处理。","link1":"https://www.aliyun.com/product/rds/postgresql","link":"https://www.aliyun.com/product/rds/postgresql","icon":"https://img.alicdn.com/tfs/TB1TEFrwamWBuNjy1XaXXXCbXXa-200-200.png","btn2":"了解价格","tip":"轻松处理空间信息,强大NoSQL兼容,支持全文搜索,支持OSS云存储扩展,支持数据仓库,尽在PostgreSQL! 产品动态发布
立即查看
","btn1":"立即开通","link2":"https://www.aliyun.com/price/product#/rds/detail?hash=postgresql","title":"云数据库RDS PostgreSQL版"}],"search":[{"txt":"PostgreSQL产品文档","link":"https://help.aliyun.com/document_detail/26092.html"},{"txt":"ECS上的自建数据库迁移指导","link":"https://help.aliyun.com/document_detail/26627.html"},{"txt":"快速入门PostgreSQL","link":"https://help.aliyun.com/document_detail/26151.html"},{"txt":"PostgreSQL的进阶之路","link":"https://yq.aliyun.com/topic/118"},{"txt":"产品动态","link":"https://www.aliyun.com/product/new?source_type=out_sousuo_feature_0716"}],"countinfo":{"search":{"length_pc":0,"length":0},"card":{"length_pc":0,"length":0}},"simplifiedDisplay":"newEdition","newCard":[{"link":"https://img.alicdn.com/tfs/TB1KM.qIeH2gK0jSZJnXXaT1FXa-1740-328.png","icon":"","contentLink":"https://www.aliyun.com/product/rds/postgresql","title":"云数据库RDS PostgreSQL版","des":"PostgreSQL被业界誉为“最先进的开源数据库”,面向企业复杂SQL处理的OLTP在线事务处理场景,支持NoSQL数据类型(JSON/XML/hstore)、支持GIS地理信息处理。","btn1":"产品详情","link1":"https://www.aliyun.com/product/rds/postgresql","btn2":"管理控制台","link2":"https://rdsnext.console.aliyun.com/?spm=5176.7920951.1393245.4.21614ce1AbbK2V#/rdsList/cn-hangzhou/basic/","btn3":"在线咨询","link3":"https://www.aliyun.com/core/online-consult?from=yAAzuk58kF","infoGroup":[{"infoName":"最新活动","infoContent":{"firstContentName":"PostgreSQL 1年75折","firstContentLink":"https://rds-buy.aliyun.com/nextBuy#/create/rds/PostgreSQL?initData=%7B%22data%22:%7B%22rds_region%22:%22cn-hangzhou%22,%22rds_dbtype%22:%22PostgreSQL%22,%22rds_dbversion%22:%2212.0%22,%22rds_nodetype%22:%22Basic%22,%22rds_web_type%22:%221%22,%22rds_storagetype%22:%22cloud_ssd%22,%22rds_class%22:%22pg.n2.medium.1%22,%22rds_storage%22:%2220%22,%22duration%22:12%7D%7D","lastContentName":"数据库专场优惠","lastContentLink":"https://www.aliyun.com/database/dbfirstbuy"}},{"infoName":"快速入门","infoContent":{"firstContentLink":"https://help.aliyun.com/document_detail/96715.html","firstContentName":"帮助文档","lastContentLink":"https://help.aliyun.com/document_detail/53730.htm","lastContentName":"快速入门"}},{"infoName":"最佳实践","infoContent":{"firstContentLink":"https://help.aliyun.com/document_detail/96772.html","firstContentName":"数据库备份","lastContentLink":"https://www.aliyun.com/database/case","lastContentName":"数据库客户案例合集"}},{"infoName":"产品推荐","infoContent":{"firstContentName":"云原生数据仓库PG版","firstContentLink":"https://www.aliyun.com/product/gpdb","lastContentName":"数据传输DTS","lastContentLink":"https://www.aliyun.com/product/dts"}}],"ifIcon":"img","iconImg":"https://img.alicdn.com/tfs/TB1ASH107L0gK0jSZFtXXXQCXXa-200-200.png"}]}
{"$env":{"JSON":{}},"$page":{"env":"production"},"$context":{"moduleinfo":{"card_count":[{"count_phone":1,"count":1}],"search_count":[{"count_phone":5,"count":5}]},"card":[{"des":"PostgreSQL被业界誉为“最先进的开源数据库”,面向企业复杂SQL处理的OLTP在线事务处理场景,支持NoSQL数据类型(JSON/XML/hstore)、支持GIS地理信息处理。","link1":"https://www.aliyun.com/product/rds/postgresql","link":"https://www.aliyun.com/product/rds/postgresql","icon":"https://img.alicdn.com/tfs/TB1TEFrwamWBuNjy1XaXXXCbXXa-200-200.png","btn2":"了解价格","tip":"轻松处理空间信息,强大NoSQL兼容,支持全文搜索,支持OSS云存储扩展,支持数据仓库,尽在PostgreSQL! 产品动态发布
立即查看
","btn1":"立即开通","link2":"https://www.aliyun.com/price/product#/rds/detail?hash=postgresql","title":"云数据库RDS PostgreSQL版"}],"search":[{"txt":"PostgreSQL产品文档","link":"https://help.aliyun.com/document_detail/26092.html"},{"txt":"ECS上的自建数据库迁移指导","link":"https://help.aliyun.com/document_detail/26627.html"},{"txt":"快速入门PostgreSQL","link":"https://help.aliyun.com/document_detail/26151.html"},{"txt":"PostgreSQL的进阶之路","link":"https://yq.aliyun.com/topic/118"},{"txt":"产品动态","link":"https://www.aliyun.com/product/new?source_type=out_sousuo_feature_0716"}],"countinfo":{"search":{"length_pc":0,"length":0},"card":{"length_pc":0,"length":0}},"simplifiedDisplay":"newEdition","newCard":[{"link":"https://img.alicdn.com/tfs/TB1KM.qIeH2gK0jSZJnXXaT1FXa-1740-328.png","icon":"","contentLink":"https://www.aliyun.com/product/rds/postgresql","title":"云数据库RDS PostgreSQL版","des":"PostgreSQL被业界誉为“最先进的开源数据库”,面向企业复杂SQL处理的OLTP在线事务处理场景,支持NoSQL数据类型(JSON/XML/hstore)、支持GIS地理信息处理。","btn1":"产品详情","link1":"https://www.aliyun.com/product/rds/postgresql","btn2":"管理控制台","link2":"https://rdsnext.console.aliyun.com/?spm=5176.7920951.1393245.4.21614ce1AbbK2V#/rdsList/cn-hangzhou/basic/","btn3":"在线咨询","link3":"https://www.aliyun.com/core/online-consult?from=yAAzuk58kF","infoGroup":[{"infoName":"最新活动","infoContent":{"firstContentName":"PostgreSQL 1年75折","firstContentLink":"https://rds-buy.aliyun.com/nextBuy#/create/rds/PostgreSQL?initData=%7B%22data%22:%7B%22rds_region%22:%22cn-hangzhou%22,%22rds_dbtype%22:%22PostgreSQL%22,%22rds_dbversion%22:%2212.0%22,%22rds_nodetype%22:%22Basic%22,%22rds_web_type%22:%221%22,%22rds_storagetype%22:%22cloud_ssd%22,%22rds_class%22:%22pg.n2.medium.1%22,%22rds_storage%22:%2220%22,%22duration%22:12%7D%7D","lastContentName":"数据库专场优惠","lastContentLink":"https://www.aliyun.com/database/dbfirstbuy"}},{"infoName":"快速入门","infoContent":{"firstContentLink":"https://help.aliyun.com/document_detail/96715.html","firstContentName":"帮助文档","lastContentLink":"https://help.aliyun.com/document_detail/53730.htm","lastContentName":"快速入门"}},{"infoName":"最佳实践","infoContent":{"firstContentLink":"https://help.aliyun.com/document_detail/96772.html","firstContentName":"数据库备份","lastContentLink":"https://www.aliyun.com/database/case","lastContentName":"数据库客户案例合集"}},{"infoName":"产品推荐","infoContent":{"firstContentName":"云原生数据仓库PG版","firstContentLink":"https://www.aliyun.com/product/gpdb","lastContentName":"数据传输DTS","lastContentLink":"https://www.aliyun.com/product/dts"}}],"ifIcon":"img","iconImg":"https://img.alicdn.com/tfs/TB1ASH107L0gK0jSZFtXXXQCXXa-200-200.png"}]}}
云数据库RDS PostgreSQL版
PostgreSQL被业界誉为“最先进的开源数据库”,面向企业复杂SQL处理的OLTP在线事务处理场景,支持NoSQL数据类型(JSON/XML/hstore)、支持GIS地理信息处理。
产品详情
管理控制台
在线咨询
最新活动
PostgreSQL 1年75折
数据库专场优惠
快速入门
帮助文档
快速入门
最佳实践
数据库备份
数据库客户案例合集
产品推荐
云原生数据仓库PG版
数据传输DTS