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⚡ AI Lessons
Dev.to · Judy
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
5d ago
SQLazy：Conditional Running Total with Reset
Problem Description Conditional running total with reset: restart accumulation when logic...
Dev.to · Judy
📊 Data Analytics & Business Intelligence
7mo ago
Beyond SQL: Solving Data Warehouse Performance Bottlenecks with Smart Algorithms, Not Just Bigger Clusters
As the volume of data continues to grow and the complexity of business rises gradually, we are facing...
Dev.to · Judy
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
10mo ago
Understanding data mining and prediction in one article
What is data mining? People always want to be able to predict the future, such as...
Dev.to · Judy
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1y ago
Querying MongoDB：SPL Lightweight Multisource Mixed Computation Practices #4
There are also some other commonly seen data sources, including NoSQL, MQ, MongoDB and others, among...
Dev.to · Judy
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1y ago
Competition of data processing languages on JVM: Kotlin, Scala and SPL
The open-source data processing languages based on JVM mainly include Kotlin, Scala and SPL. This...
Dev.to · Judy
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1y ago
SPL assists MongoDB: Only keep the running total for the last item in the partition
The data of a collection (named grp_core) in the Mongdb database is as follows: [ { "grp": "A",...
Dev.to · Judy
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1y ago
SPL assists MongoDB: Grouping adjacent documents
The data of a collection (named states) in the MongoDB database is as follows: [ {order: 1,...
Dev.to · Judy
📊 Data Analytics & Business Intelligence
⚡ AI Lesson
1y ago
The Open-source SPL Boosts MongoDB Computing Ability
MongoDB is a typical NoSQL database. Its document-oriented structure makes both storage and access...
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