SQL语言入门的相关内容

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。

文章 2024-08-18 来自：开发者社区

SQL语言入门：如何表达你的数据需求

在数据库的世界里，SQL（Structured Query Language）是一种至关重要的语言，它允许用户与数据库进行交互，执行数据的查询、更新、插入和删除等操作。对于初学者来说，掌握SQL语言的基本表达方式是开启数据库操作之门的钥匙。本文将围绕“SQL语言如何表达数据需求”这一主题，介绍几个关...

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 2022-02-16 来自：开发者社区

章节1：SQL语言简易入门

一、增、删、改、查 1、增（向表格中插入数据）： INSERT INTO tb_TableName(ColumnName1,ColumnName2) VALUES(ColumnValue1,ColumnValue2); 示例： SQL代码： INSERT INTO tb_userInfo(Name,Age,Sex) VALUES('hzx',22,true); Navicat中截图：命令输入窗....

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更新时间 2024-08-19 09:11:08

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