odps SQL开发的相关内容

阿里云文档 2026-01-13

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Dataphin的Flink SQL任务支持多种开发方式，包括原生DDL+DML开发、基于Catalog开发、使用Dataphin元表进行开发、使用Dataphin数据源表进行开发、以及使用计算源物理表进行开发，且不同开发方式所创建的表支持任意混用，包括镜像表。不同开发方式的使用方法、使用场景以及优缺点各异。本文将为您介绍各开发方式帮助您更好地完成Flink SQL任务开发。

阿里云文档 2025-11-04

使用X-编码助手实现MaxCompute代码问答、SQL解释与自动补全-智能数据建设与治理 Dataphin-阿里云

代码助手依赖大模型能力，帮助您在代码任务编程方面，使用低成本操作方式高效完成代码开发。

阿里云文档 2025-09-18

SparkSQL任务快速入门

EMR Serverless Spark支持通过SQL代码编辑和运行任务。本文带您快速体验SQL的创建、启动和运维等操作。

阿里云文档 2025-08-21

配置NL2SQL服务

查询分析服务中的NL2SQL提供将自然语言查询转换为SQL语句的能力，本文介绍如何配置查询分析-NL2SQL服务。

阿里云文档 2024-07-17

Flink SQL开发调优实践

说明实时计算Flink版控制台界面和功能可能会发生变化，具体请以实际控制台为准。

问答 2023-11-30 来自：开发者社区

dataworks odps sql开发窗口新建表之后，表结构多久可以同步到数据字典？

dataworks odps sql开发窗口新建表之后，表结构多久可以同步到数据字典 information_schema下？

问答 2023-10-29 来自：开发者社区

dataworks的ODPS SQL开发窗口，如何设置自定义快捷方式？

文章 2022-12-18 来自：开发者社区

阿里云-DataWorks- ODPS SQL开发4-SQL性能优化

前言前几篇我们讲解了ODPS数据开发过程中会大量用到的各种日期与字符、数学运算、聚合、开窗、自定义等函数，今天我们针对海量数据开发过程数据开发效率优化做讲解。常见数据优化问题数据倾斜问题 1、大表关联小表大表关联小表出现倾斜时，可以使用mapjoin的hint(/+mapjoin(b)/)。同时可适当调整mapjoin中小表的内存大小： set odps.sql.mapjoin.mem...

文章 2022-12-17 来自：开发者社区

阿里云-DataWorks- ODPS SQL开发3-日期与字符、数学运算、聚合函数函数

前言本文主要讲解日常大量会接触到的一些常用的日期与字符、数学运算、聚合函数函数一、日期函数GETDATE函数: 获取当前系统时间SELECT GETDATE();执行结果: 2022-12-15 20:33:23DATEADD函数: 日期增减SELECT DATEADD(GETDATE(),1,'dd');执行结果: 2021-06-28 20:34:17SELECT DATEADD(GETDA....

文章 2022-12-17 来自：开发者社区

阿里云-DataWorks- ODPS SQL开发2

前言我们在DataWorks空间下做数据开发时会经常用到大量的函数，本文主要讲解日常大量会接触到的一些。常用函数与关键词：1、coalesce（expr1，expr2）返回列表中第一个非null的值2、concat（string A，string B）将参数中的所有字符串连接在一起如果没有参数或者有某个参数为null就返回null3、cast（expr as ）将表达式的结果...

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