技能pl SQL 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。

文章 2022-12-27 来自：开发者社区

数据库小技能：PL/SQL中书写定义sql

I 书写定义sql1.1 DQL语言必须写into关键字查询语句只能有一条返回值异常示例：没有值 no_data_found；值过多 too_many_rows1.2 DML(insert/update/delete)执行DML语句要处理事务&+变量来实现动态传参--执行DML语句 declare begin --普通DML语句 delete from emp wh...

文章 2022-12-27 来自：开发者社区

数据库小技能：PL/SQL（Procedure Language/SQL,过程化SQL语言）预备知识

引言过程化SQL语言（Procedural Language/SQL）是Oracle数据库对SQL语句的扩展：在普通SQL语句的使用上增加了编程语言的特点，把数据操作和查询语句组织在PL/SQL代码的过程性单元中，通过逻辑判断、循环等操作实现复杂的功能或者计算的程序语言。优点：可以对程序中的错误进行自动处理，使程序能够在遇到错误的时候不会被中断；具有较好的可移植性，可以移植到另一个Oracle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。

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