pl SQL学习笔记游标的相关内容

阿里云文档 2023-12-14

PolarDBPostgreSQL版PL/SQL的基本语句_云原生数据库PolarDB PostgreSQL版（兼容Oracle）_云原生数据库 PolarDB(PolarDB)

本文介绍了基本语句的相关内容。

阿里云文档 2023-12-14

PolarDBPostgreSQL版PL/SQL的声明信息_云原生数据库PolarDB PostgreSQL版（兼容Oracle）_云原生数据库 PolarDB(PolarDB)

本文介绍了PL/SQL的声明信息。

阿里云文档 2023-03-21

如何创建PolarDBO引擎的PL/SQL子类型

PolarDB PostgreSQL版（兼容Oracle）支持用户定义的PL/SQL子类型和（子类型）别名。子类型是具有一组可选约束的数据类型，这些约束限制可以存储在该类型的列中的值。适用于该子类型所基于的类型的规则仍然适用，但您可以使用其他约束限制该类型中存储值的精度或小数位数。

阿里云文档 2022-03-04

使用DBMS_AQ包中的存储过程添加/删除消息以及注册或注销PL/SQL回调存储过程

您可以使用DBMS_AQ包中的存储过程添加消息到队列、从队列中删除消息、注册或注销PL/SQL回调存储过程。

文章 2017-07-24 来自：开发者社区

PL/SQL学习笔记_02_游标

在 PL/SQL 程序中，对于处理多行记录的事务经常使用游标来实现。为了处理 SQL 语句， ORACLE 必须分配一片叫上下文( context area )的区域来处理所必需的信息，其中包括要处理的行的数目，一个指向语句被分析以后的表示形式的指针以及查询的活动集(acti...

文章 2009-08-09 来自：开发者社区

一：普通游标 declare --定义record类型变量 type v_record is record (title labor.xland.title%type,state labor.xland.title%type); --定义字符串类型变量 v_title labor.xland.title%type; --定义一个游标 cursor c1 is select title from ....

共有6条

< 1 >

跳转至： GO

更新时间 2022-09-01 14:49:23

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。

SQL pl相关内容

SQL更多pl相关

SQL您可能感兴趣

产品推荐

{"moduleinfo":{"card_count":[{"count_phone":1,"count":1}],"search_count":[{"count_phone":4,"count":4}]},"card":[{"des":"云数据库SQL Server，具有企业许可授权，权限更为开放，引擎功能更为强大。能完美支持Windows平台的.NET架构，支持复杂SQL查询，性能优秀，并有强大的可视化管理工具，帮助您轻松管理数据。","link1":"https://rdsnew.console.aliyun.com/console/buy#/create/rds?initData=%7B%22data%22:%7B%22rds_region%22:%22cn-hangzhou%22,%22rds_dbtype%22:%22mssql%22,%22rds_dbversion%22:%222016_web%22,%22rds_web_type%22:%221%22,%22rds_class%22:%22mssql.x2.medium.w1%22,%22rds_storage%22:%2220%22,%22duration%22:12%7D%7D","link":"https://www.aliyun.com/product/rds/sqlserver","icon":"https://img.alicdn.com/tfs/TB1kuYmv3mTBuNjy1XbXXaMrVXa-200-200.png","btn2":"2016 标准版","tip":"完美兼容windows操作系统，已通过ISO 20000、SOC、PCI-DSS、等保三级等十项安全合规认证。         最新产品和实时动态重磅发布<a href=\"https://www.aliyun.com/product/new?source_type=out_sousuo_feature_0716\" target=\"_blank\">立即查看</a>","btn1":"2016 Web版","link2":"https://rdsnew.console.aliyun.com/console/buy#/create/rds?initData=%7B%22data%22:%7B%22rds_region%22:%22cn-shanghai%22,%22rds_dbtype%22:%22mssql%22,%22rds_dbversion%22:%222016_std_ha%22,%22rds_web_type%22:%221%22,%22rds_class%22:%22mssql.x4.medium.s2%22,%22rds_storage%22:%2220%22,%22duration%22:12%7D%7D","title":"云数据库RDS SQL Server版"}],"search":[{"txt":"SQL Server Web版","link":"https://promotion.aliyun.com/ntms/act/sqlserverweb.html"},{"txt":"SQL Server 标准版/企业版","link":"https://promotion.aliyun.com/ntms/act/sqlservergaokeyong.html"},{"txt":"快速入门SQL Server","link":"https://help.aliyun.com/document_detail/26141.html"},{"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://www.aliyun.com/product/rds/sqlserver","title":"云数据库 RDS SQL Server 版","des":"云数据库SQL Server，具有企业许可授权，权限更为开放，引擎功能更为强大。能完美支持Windows平台的.NET架构，支持复杂SQL查询，性能优秀，并有强大的可视化管理工具，帮助您轻松管理数据。","btn1":"产品详情","link1":"https://www.aliyun.com/product/rds/sqlserver","btn2":"管理控制台","link2":"https://rdsnext.console.aliyun.com/#/rdsList/cn-hangzhou/basic/","link3":"https://www.aliyun.com/core/online-consult?from=OVtXEBmlH8","btn3":"在线咨询","infoGroup":[{"infoName":"最新活动","infoContent":{"firstContentName":"新用户年付低至3折起","firstContentLink":"https://www.aliyun.com/activity/database/bestoffers","lastContentName":"云数据库 AI 智惠季","lastContentLink":"https://www.aliyun.com/activity/1111/database"}},{"infoName":"快速入门","infoContent":{"firstContentName":"帮助文档","firstContentLink":"https://help.aliyun.com/product/26090.html","lastContentName":"入门指南","lastContentLink":"https://help.aliyun.com/document_detail/53729.htm"}},{"infoName":"产品动态","infoContent":{"firstContentName":"存储能力全方位升级","firstContentLink":"https://www.aliyun.com/activity/database/rds-storage-upgrade","lastContentLink":"https://help.aliyun.com/zh/rds/bi-monthly-product-report-for-apsaradb-rds-juiy-august-2025-2","lastContentName":"RDS 产品双月报"}},{"infoName":"客户案例","infoContent":{"firstContentName":"RDS 助力巴黎奥运会系统稳定运行","firstContentLink":"https://help.aliyun.com/zh/rds/apsaradb-rds-for-sql-server/apsaradb-rds-helps-ensure-the-stability-of-the-system-of-the-paris-olympic-games","lastContentName":"","lastContentLink":""}}],"icon":"","ifIcon":"img","iconImg":"https://img.alicdn.com/tfs/TB1FIpvn3gP7K4jSZFqXXamhVXa-200-200.png","contentLink":"https://www.aliyun.com/product/rds/sqlserver"}]}

{"$env":{"JSON":{}},"$page":{"env":"production"},"$context":{"moduleinfo":{"card_count":[{"count_phone":1,"count":1}],"search_count":[{"count_phone":4,"count":4}]},"card":[{"des":"云数据库SQL Server，具有企业许可授权，权限更为开放，引擎功能更为强大。能完美支持Windows平台的.NET架构，支持复杂SQL查询，性能优秀，并有强大的可视化管理工具，帮助您轻松管理数据。","link1":"https://rdsnew.console.aliyun.com/console/buy#/create/rds?initData=%7B%22data%22:%7B%22rds_region%22:%22cn-hangzhou%22,%22rds_dbtype%22:%22mssql%22,%22rds_dbversion%22:%222016_web%22,%22rds_web_type%22:%221%22,%22rds_class%22:%22mssql.x2.medium.w1%22,%22rds_storage%22:%2220%22,%22duration%22:12%7D%7D","link":"https://www.aliyun.com/product/rds/sqlserver","icon":"https://img.alicdn.com/tfs/TB1kuYmv3mTBuNjy1XbXXaMrVXa-200-200.png","btn2":"2016 标准版","tip":"完美兼容windows操作系统，已通过ISO 20000、SOC、PCI-DSS、等保三级等十项安全合规认证。         最新产品和实时动态重磅发布<a href=\"https://www.aliyun.com/product/new?source_type=out_sousuo_feature_0716\" target=\"_blank\">立即查看</a>","btn1":"2016 Web版","link2":"https://rdsnew.console.aliyun.com/console/buy#/create/rds?initData=%7B%22data%22:%7B%22rds_region%22:%22cn-shanghai%22,%22rds_dbtype%22:%22mssql%22,%22rds_dbversion%22:%222016_std_ha%22,%22rds_web_type%22:%221%22,%22rds_class%22:%22mssql.x4.medium.s2%22,%22rds_storage%22:%2220%22,%22duration%22:12%7D%7D","title":"云数据库RDS SQL Server版"}],"search":[{"txt":"SQL Server Web版","link":"https://promotion.aliyun.com/ntms/act/sqlserverweb.html"},{"txt":"SQL Server 标准版/企业版","link":"https://promotion.aliyun.com/ntms/act/sqlservergaokeyong.html"},{"txt":"快速入门SQL Server","link":"https://help.aliyun.com/document_detail/26141.html"},{"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://www.aliyun.com/product/rds/sqlserver","title":"云数据库 RDS SQL Server 版","des":"云数据库SQL Server，具有企业许可授权，权限更为开放，引擎功能更为强大。能完美支持Windows平台的.NET架构，支持复杂SQL查询，性能优秀，并有强大的可视化管理工具，帮助您轻松管理数据。","btn1":"产品详情","link1":"https://www.aliyun.com/product/rds/sqlserver","btn2":"管理控制台","link2":"https://rdsnext.console.aliyun.com/#/rdsList/cn-hangzhou/basic/","link3":"https://www.aliyun.com/core/online-consult?from=OVtXEBmlH8","btn3":"在线咨询","infoGroup":[{"infoName":"最新活动","infoContent":{"firstContentName":"新用户年付低至3折起","firstContentLink":"https://www.aliyun.com/activity/database/bestoffers","lastContentName":"云数据库 AI 智惠季","lastContentLink":"https://www.aliyun.com/activity/1111/database"}},{"infoName":"快速入门","infoContent":{"firstContentName":"帮助文档","firstContentLink":"https://help.aliyun.com/product/26090.html","lastContentName":"入门指南","lastContentLink":"https://help.aliyun.com/document_detail/53729.htm"}},{"infoName":"产品动态","infoContent":{"firstContentName":"存储能力全方位升级","firstContentLink":"https://www.aliyun.com/activity/database/rds-storage-upgrade","lastContentLink":"https://help.aliyun.com/zh/rds/bi-monthly-product-report-for-apsaradb-rds-juiy-august-2025-2","lastContentName":"RDS 产品双月报"}},{"infoName":"客户案例","infoContent":{"firstContentName":"RDS 助力巴黎奥运会系统稳定运行","firstContentLink":"https://help.aliyun.com/zh/rds/apsaradb-rds-for-sql-server/apsaradb-rds-helps-ensure-the-stability-of-the-system-of-the-paris-olympic-games","lastContentName":"","lastContentLink":""}}],"icon":"","ifIcon":"img","iconImg":"https://img.alicdn.com/tfs/TB1FIpvn3gP7K4jSZFqXXamhVXa-200-200.png","contentLink":"https://www.aliyun.com/product/rds/sqlserver"}]}}