数据库编程连接池的相关内容

阿里云文档 2024-09-10

如何完成可编程对象的变更_数据管理(DMS)

数据管理DMS支持变更存储程序（Stored Routines），并且提供了规范化的管理流程来管控变更操作历史记录，本文介绍如何完成存储程序变更。

文章 2022-02-17 来自：开发者社区

由于创建连接和释放连接都有很大的开销（尤其是数据库服务器不在本地时，每次建立连接都需要进行TCP的三次握手，释放连接需要进行TCP四次握手，造成的开销是不可忽视的），为了提升系统访问数据库的性能，可以事先创建若干连接置于连接池中，需要时直接从连接池获取，使用结束时归还连接池而不必关闭连接，从而避免频繁创建和释放连接所造成的开销，这是典型的用空间换取时间的策略（浪费了空间存储连接，但节省了创建和释....

问答 2022-02-15 来自：开发者社区

在进行数据库编程时，连接池有什么作用？

共有4条

< 1 >

跳转至： GO

更新时间 2024-07-20 15:34:41

本页面内关键词为智能算法引擎基于机器学习所生成，如有任何问题，可在页面下方点击"联系我们"与我们沟通。

数据库编程相关内容

数据库更多编程相关

数据库您可能感兴趣

产品推荐

{"optioninfo":{"dynamic":"ture","static":"true"},"simplifiedDisplay":"newEdition","newCard":[{"ifIcon":"img","link":"https://img.alicdn.com/tfs/TB1XY8hGYr1gK0jSZFDXXb9yVXa-1740-328.png","icon":"","iconImg":"https://img.alicdn.com/tfs/TB1nmXJn7cx_u4jSZFlXXXnUFXa-200-200.png","contentLink":"https://www.aliyun.com/product/dbaudit","title":"数据库审计","des":"满足等保2.0二级和三级 “安全审计”合规要求的同时，智能解析数据库通信流量，细粒度审计数据库访问行为，通过对数据库全量行为的审计溯源、危险攻击的实时告警、风险语句的智能预警，提供数据库资产最安全的监控保障。","link1":"https://yundun.console.aliyun.com/?spm=5176.14517109.nav-right.2.3bf5oPqioPqiaM&p=dbaudit#/c100/cn-hangzhou","btn1":"产品控制台","link2":"https://common-buy.aliyun.com/?spm=5176.139959.J_5253785160.3.42de77d7KNxtZZ&commodityCode=dbaudit#/buy","btn2":"立即购买","btn3":"产品文档","link3":"https://help.aliyun.com/product/52432.html?spm=5176.139959.J_5253785160.5.42de77d7KNxtZZ","infoGroup":[{"infoName":"精选推荐","infoContent":{"firstContentName":"7天免费试用体验","firstContentLink":"https://page.aliyun.com/form/act803688306/index.htm?spm=5176.139959.J_6302206100.1.42de77d7KNxtZZ","lastContentLink":"https://common-buy.aliyun.com/?spm=5176.139959.J_6302206100.2.42de77d7KNxtZZ&commodityCode=dbaudit#/buy","lastContentName":"包年享85折优惠"}},{"infoName":"用户指南","infoContent":{"firstContentName":"产品快速入门","lastContentName":"常见问题","firstContentLink":"https://help.aliyun.com/document_detail/122013.html?spm=a2c4g.11174283.6.550.1f412bc5vmA86L","lastContentLink":"https://help.aliyun.com/document_detail/158575.html?spm=a2c4g.11174283.6.587.1f412bc5vmA86L"}}]}],"card":[],"search":[],"infoCard":[{"bannerUrl":"https://img.alicdn.com/tfs/TB1Xf81a3gP7K4jSZFqXXamhVXa-5169-974.jpg","bannerTitle":"数据库审计","bannerContent":"满足等保2.0二级和三级 “安全审计”合规要求的同时，智能解析数据库通信流量，细粒度审计数据库访问行为，通过对数据库全量行为的审计溯源、危险攻击的实时告警、风险语句的智能预警，提供数据库资产最安全的监控保障。","liveButtonName":"查看详情","liveButtonLink":"https://www.aliyun.com/product/dbaudit?spm=5176.21213303.8115314850.1.faf453c9I9EKNe&scm=20140722.S_card@@%E5%8D%A1%E7%89%87@@1796._.ID_card@@%E5%8D%A1%E7%89%87@@1796-RL_%E6%95%B0%E6%8D%AE%E5%BA%93%E5%AE%A1%E8%AE%A1-OR_ser-V_2-P0_0","contentTitle":"满足等保2.0’安全审计‘的合规要求","homePageLink":"https://page.aliyun.com/form/act803688306/index.htm","homePageName":"7天试用","linkGroup":[{"linkContent":"发布包大小极致优化，节省流量和存储。"},{"linkContent":"服务迭代不再受发版限制，快速发布，快速迭代。"},{"linkContent":"业务开发效率更加优秀，一次开发，多端运行。"}]}],"title":{"mainTitle":"数据库审计","subtitle":"满足等保2.0二级和三级 “安全审计”合规要求的同时，智能解析数据库通信流量，细粒度审计数据库访问行为，通过对数据库全量行为的审计溯源、危险攻击的实时告警、风险语句的智能预警，提供数据库资产最安全的监控保障。","linkUrl":"https://www.aliyun.com/product/dbaudit?spm=5176.21213303.8115314850.1.faf453c9I9EKNe&scm=20140722.S_card@@%E5%8D%A1%E7%89%87@@1796._.ID_card@@%E5%8D%A1%E7%89%87@@1796-RL_%E6%95%B0%E6%8D%AE%E5%BA%93%E5%AE%A1%E8%AE%A1-OR_ser-V_2-P0_0","btnText":"查看详情"},"visual":{"topbg":"https://img.alicdn.com/tfs/TB1bQuBIYH1gK0jSZFwXXc7aXXa-3840-740.gif","icon":"","textColor":"dark"},"dataList":[{"summary":"啦啦啦","author":"wuwu","linksUrl":"#"}],"sceneCard":[],"txt":[]}

{"$env":{"JSON":{}},"$page":{"env":"production"},"$context":{"optioninfo":{"dynamic":"ture","static":"true"},"simplifiedDisplay":"newEdition","newCard":[{"ifIcon":"img","link":"https://img.alicdn.com/tfs/TB1XY8hGYr1gK0jSZFDXXb9yVXa-1740-328.png","icon":"","iconImg":"https://img.alicdn.com/tfs/TB1nmXJn7cx_u4jSZFlXXXnUFXa-200-200.png","contentLink":"https://www.aliyun.com/product/dbaudit","title":"数据库审计","des":"满足等保2.0二级和三级 “安全审计”合规要求的同时，智能解析数据库通信流量，细粒度审计数据库访问行为，通过对数据库全量行为的审计溯源、危险攻击的实时告警、风险语句的智能预警，提供数据库资产最安全的监控保障。","link1":"https://yundun.console.aliyun.com/?spm=5176.14517109.nav-right.2.3bf5oPqioPqiaM&p=dbaudit#/c100/cn-hangzhou","btn1":"产品控制台","link2":"https://common-buy.aliyun.com/?spm=5176.139959.J_5253785160.3.42de77d7KNxtZZ&commodityCode=dbaudit#/buy","btn2":"立即购买","btn3":"产品文档","link3":"https://help.aliyun.com/product/52432.html?spm=5176.139959.J_5253785160.5.42de77d7KNxtZZ","infoGroup":[{"infoName":"精选推荐","infoContent":{"firstContentName":"7天免费试用体验","firstContentLink":"https://page.aliyun.com/form/act803688306/index.htm?spm=5176.139959.J_6302206100.1.42de77d7KNxtZZ","lastContentLink":"https://common-buy.aliyun.com/?spm=5176.139959.J_6302206100.2.42de77d7KNxtZZ&commodityCode=dbaudit#/buy","lastContentName":"包年享85折优惠"}},{"infoName":"用户指南","infoContent":{"firstContentName":"产品快速入门","lastContentName":"常见问题","firstContentLink":"https://help.aliyun.com/document_detail/122013.html?spm=a2c4g.11174283.6.550.1f412bc5vmA86L","lastContentLink":"https://help.aliyun.com/document_detail/158575.html?spm=a2c4g.11174283.6.587.1f412bc5vmA86L"}}]}],"card":[],"search":[],"infoCard":[{"bannerUrl":"https://img.alicdn.com/tfs/TB1Xf81a3gP7K4jSZFqXXamhVXa-5169-974.jpg","bannerTitle":"数据库审计","bannerContent":"满足等保2.0二级和三级 “安全审计”合规要求的同时，智能解析数据库通信流量，细粒度审计数据库访问行为，通过对数据库全量行为的审计溯源、危险攻击的实时告警、风险语句的智能预警，提供数据库资产最安全的监控保障。","liveButtonName":"查看详情","liveButtonLink":"https://www.aliyun.com/product/dbaudit?spm=5176.21213303.8115314850.1.faf453c9I9EKNe&scm=20140722.S_card@@%E5%8D%A1%E7%89%87@@1796._.ID_card@@%E5%8D%A1%E7%89%87@@1796-RL_%E6%95%B0%E6%8D%AE%E5%BA%93%E5%AE%A1%E8%AE%A1-OR_ser-V_2-P0_0","contentTitle":"满足等保2.0’安全审计‘的合规要求","homePageLink":"https://page.aliyun.com/form/act803688306/index.htm","homePageName":"7天试用","linkGroup":[{"linkContent":"发布包大小极致优化，节省流量和存储。"},{"linkContent":"服务迭代不再受发版限制，快速发布，快速迭代。"},{"linkContent":"业务开发效率更加优秀，一次开发，多端运行。"}]}],"title":{"mainTitle":"数据库审计","subtitle":"满足等保2.0二级和三级 “安全审计”合规要求的同时，智能解析数据库通信流量，细粒度审计数据库访问行为，通过对数据库全量行为的审计溯源、危险攻击的实时告警、风险语句的智能预警，提供数据库资产最安全的监控保障。","linkUrl":"https://www.aliyun.com/product/dbaudit?spm=5176.21213303.8115314850.1.faf453c9I9EKNe&scm=20140722.S_card@@%E5%8D%A1%E7%89%87@@1796._.ID_card@@%E5%8D%A1%E7%89%87@@1796-RL_%E6%95%B0%E6%8D%AE%E5%BA%93%E5%AE%A1%E8%AE%A1-OR_ser-V_2-P0_0","btnText":"查看详情"},"visual":{"topbg":"https://img.alicdn.com/tfs/TB1bQuBIYH1gK0jSZFwXXc7aXXa-3840-740.gif","icon":"","textColor":"dark"},"dataList":[{"summary":"啦啦啦","author":"wuwu","linksUrl":"#"}],"sceneCard":[],"txt":[]}}