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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

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阿里云文档 2025-04-29

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文章 2024-04-11 来自：开发者社区

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前言 ⏰诗赋清音：墨激雷霆势，心随碧波飘。山河承豪情滔天，梦御风云志浩荡。欢迎大家关注点赞收藏⭐️留言作者留言：欢迎来到我的【SQL Server】魔法学堂！这里...

文章 2024-02-01 来自：开发者社区

【数据库SQL server】关系数据库标准语言SQL之数据查询

关系数据库标准语言SQL之数据查询数据查询语句格式SELECT [ALL|DISTINCT] <目标列表达式>[,<目标列表达式>] …FROM <表名或视图名>[,<表名或视图名> ]…|(SELECT 语句) ...

文章 2023-11-24 来自：开发者社区

Mysql数据库 4.SQL语言 DQL数据查询语言查询

DQL数据查询语言从数据表中提取满足特定条件的记录1.单表查询2.多表查询查询基础语法select 关键字后指定要查询到的记录的哪些列语法：select 列名（字段名）/某几列/全部列 from 表名 [具体条件]；select colnumName1[colnumName2...] from <tableName> [where conditions];select c....

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。

问答 2019-12-23 来自：开发者社区

MySQL选择题 SQL语言集数据查询、数据操纵、数据定义和数据控制功能于一体，其中

SQL语言集数据查询、数据操纵、数据定义和数据控制功能于一体，其中，CREATE、DROP、ALTER语句是实现哪种功能( ) A、数据操纵 B、数据控制 C、数据定义 D、数据查询

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更新时间 2024-04-19 15:59:24

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