SQL语言基础的相关内容

阿里云文档 2025-05-23

如何使用CREATE SQL FUNCTION创建永久SQL语言定义函数并存入Meta系统

SQL语言定义的用户自定义函数（UDF）弥补了MaxCompute只能使用Java或Python创建UDF的不足，并扩展了UDF参数类型的范围，支持函数类型的参数，从而提升了表达业务逻辑的灵活性。SQL UDF支持永久UDF和临时UDF，本文为您介绍通过CREATE SQL FUNCTION命令创建永久SQL UDF。

阿里云文档 2025-04-29

如何使用基于大语言模型LLM的NL2SQL

为了使不熟悉SQL语言的用户能够方便地从数据库中进行数据分析，PolarDB for AI推出了自研的基于大语言模型的自然语言到SQL语言转义（Large Language Model based Natural Language to SQL，简称LLM-based NL2SQL）AI模型，作为内置模型供您使用。与传统的NL2SQL方法相比，LLM-based NL2SQL模型在语言理解能力上更...

阿里云文档 2025-04-29

如何使用FUNCTION创建临时SQL语言定义函数

SQL语言定义的用户自定义函数（UDF）扩展了MaxCompute的功能，支持更多参数类型和函数类型的入参。本文介绍如何通过FUNCTION命令创建临时SQL UDF。

阿里云文档 2023-09-03

如何使用SELECTFUNCTION调用SQL语言定义函数_云原生大数据计算服务 MaxCompute(MaxCompute)

调用SQL语言定义函数的方式和现有内建函数的调用方式一致。

阿里云文档 2023-07-19

通过Go语言的SQL包开发Lindorm宽表应用的方法和示例

本文介绍通过Go语言的database/sql包使用SQL开发Lindorm宽表应用的方法和示例。

文章 2017-02-10 来自：开发者社区

PL/SQL语言基础

PL/SQL语言基础 /********************************数据类型********...

文章 2012-04-14 来自：开发者社区

PL/SQL1——语言基础

原文转自一沙弥的世界的博客 PL/SQL是过程化的SQL语言，是ORACLE对SQL语言的扩展，在普通SQL语句的基础上增加了编程语言的特点。使得该语言不仅具有过程编程语言的特征，如循环、条件分支等。同时也具有对象编程语言的特征，如重载、继承等。一、PL/SQL程序语言的组成主要...

文章 2010-12-08 来自：开发者社区

PL/SQL --> 语言基础

--===================== -- PL/SQL --> 语言基础 --===================== PL/SQL是过程化的SQL语言，是ORACLE对SQL语言的扩展，在普通SQL语句的基础上增加了编程语言的特点。使得该语言不仅具有过程编程语言的特征，如循环、条件分支等。同时也具有对象编程语言的特征，如重...

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