SQL计算消耗的相关内容

阿里云文档 2025-03-26

使用SQL创建数据集如何计算两个时间字段相差的秒数

概述本文主要描述了使用SQL创建数据集如何计算两个时间字段相差的秒数的方法。详细信息使用SQL创建数据集，按如下内容编辑：select timediff(live_name,I_live_name ) FROM student;适用于Quick BI

问答 2024-05-29 来自：开发者社区

表格存储使用SQL有额外的计算费用消耗吗

阿里云文档 2024-01-25

概述Dataphin某一时间开发环境在SQL计算任务中运行了一段SQL，如何查看该段SQL的运行记录。详细信息在开发 - 运行记录页面可以查看资产数据预览、数据处理、建模数据预览以及OpenAPI数据查询的运行记录，记录以天为粒度进行划分。相关文档运行记录适用于Dataphin

阿里云文档 2023-12-01

如何使用GeomGridSQL的ST_As3DGrid网格对象计算函数_RDS PostgreSQL数据库_云数据库 RDS(RDS)

将三维几何对象转换为地理网格表达。

文章 2023-05-11 来自：开发者社区

1. 需求描述在智能家居行业里产生了各种各样场景的数字解决方案，有解决方案商使用物联网平台的能力搭建各种数据分析应用，比如房间电量消耗统计，在公寓中部署了智能电表，每隔15min上传一次累计电量，需要根据设备上传值计算用电量。结合下表理解。设备标示上报属性值上报时间用电量房间1电表56.200:00-房间2电表100.200:00-房间1电表56.300:1556.3-56.2 = 0.1度电房....

阿里云文档 2022-09-27

问题描述Dataphin中SQL计算任务自动解析上游依赖失败，报错“xxx[Read time out]xxx”。问题原因解析上游依赖时出现该问题的原因一般为用户SQL代码过长，导致解析时间过长而超时。解决方案建议把代码拆分为多个部分，创建多个不同的计算任务，这样可读性也会好一些。适用于Dataph...

阿里云文档 2022-09-16

SQL计算任务报错ODPSpartitionexception-maximum60000partitionsallowed

问题描述Dataphin中SQL计算任务报错“ODPS partition exception - maximum 60000 partitions allowed”。问题原因该限制为MaxCompute的限制，是MaxCompute侧抛出的错误。解决方案1.适当删除分区。2.联系数据库侧同学评估是...

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更新时间 2024-05-30 11:49:53

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