SQL定义sealed接口的相关内容

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 2025-03-26

ClickHouse数据源自定义SQL创建数据集无法保存

问题描述Quick BI中ClickHouse数据源自定义SQL创建数据集可以执行成功但是无法保存。{"traceId":"de31655e-3180-4194-9432-9773658b8d0c","code":"AE0510100008","message":"SQL导入出错","success...

问答 2024-07-31 来自：开发者社区

在上面的 SQL 结构定义中，如何理解 sealed 接口的作用？

问答 2024-07-31 来自：开发者社区

在 SQL 结构定义中，如何使用 Record 类型和 sealed 接口来定义 SQL 节点？

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 2022-05-26

SQL效检失败报错ODPS-0130121,[1,122]Invalidargumenttype-invalidtypeINTofargument1forfunctionDATEDIFF,expectDATETIME

问题描述Dataphin定义原子指标的时候，SQL效检失败，提示非法表达式，错误信息如下：ODPS-0130121:[1,122]Invalid argument type -invalid type INT of argument 1 for function DATEDIFF,expect DA...

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更新时间 2024-08-01 15:14:48

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