日记-20221124
Clyde Jin
2022-11-24
3

今天看SQL Deep Dive两章 还是同样的进度

看道德经三章,今天的视频都比较短

T-SQL性能调优秘笈 第五章后半段扫过,全书完,

这本书还是很难,以后还要再看几遍

在视频网站看了内存临时数据库元数据的介绍,

这个我自己也做个一个ppt介绍,所以大都看懂了,

里面还有一些不启用的替代方案,看的不是很明白,不明觉厉 jz

整理题目的还有启动 有些偷懒。

Star
Donate
日记-20221123
Previous
日记-20221125
Next

Leave a comment

Registration is not required

Clyde Jin
280 Articles
0 Comments
0 Like
Recent Posts

HiddenMerit Daily · Issue 40

📊 HiddenMerit Daily · Issue 40 Focus on Database Frontiers, Practical Insights for DBAs June 10, 2026 | 5 Selected Global Breaking News 01|Alibaba Cloud Launches MongoDB 8.3 Domestically: Three AI‑Native Capabilities, Saying Goodbye to “Add‑On” AI In early June, Alibaba Cloud became the first in China to launch MongoDB 8.3. This version deeply integrates three major AI capabilities – vector search, auto‑embedding, and intelligent O&M – into the database engine, introducing an “AI‑Native” design philosophy – not “add‑on” AI support, but letting AI capabilities natively “grow” inside the database engine, achieving native search, native vectorisation, and native O&M. The Three AI‑Native Capabilities: Native Search: Vector and full‑text search are built into the engine layer; a single pipeline completes hybrid search combining “vector + full‑text + scalar,” with $rankFusion stage using the RRF algorithm for score fusion, eliminating the need for applications to switch between multiple systems. Native Vectorisation: Write‑time auto‑embedding, transparent to applications, zero sync overhead; the engine layer automatically listens for data changes via Change Stream, calls models to generate vectors, writes back to documents, and triggers index updates. Native O&M: Natural language management, AI‑assisted slow query analysis, index recommendations, and parameter tuning, covering all versions; this capability […]

HiddenMerit Daily · Issue 39

📊 HiddenMerit Daily · Issue 39 Focus on Database Frontiers, Practical Insights for DBAs June 9, 2026 | 5 Selected Global Breaking News 01|MongoDB 8.3 “AI‑Native” Launches Domestically, Alibaba Cloud Fires First Shot in AI Database Race In early June, Alibaba Cloud became the first in China to launch MongoDB 8.3. MongoDB 8.3 introduces an “AI‑Native” design philosophy – not “add‑on” AI support, but deep integration of three major capabilities – vector search, auto‑embedding, and intelligent O&M – directly into the database engine, achieving a trinity of “native search, native vectorisation, native O&M.” The three native AI capabilities in detail: Native Search: Vector and full‑text search are built into the engine layer; a single pipeline completes hybrid search combining “vector + full‑text + scalar” (with $rankFusion stage using the RRF algorithm for score fusion), eliminating the need for applications to switch between multiple systems. Native Vectorisation: Write‑time auto‑embedding, transparent to applications, zero sync overhead; the engine layer automatically listens for data changes via Change Stream, calls models to generate vectors, writes back to documents, and triggers index updates. Native O&M: Natural language management, AI‑assisted slow query analysis, index recommendations, and parameter tuning, covering all versions; this capability covers all versions […]

HiddenMerit Daily · Issue 38

📊 HiddenMerit Daily · Issue 38 Focus on Database Frontiers, Practical Insights for DBAs June 8, 2026 | 5 Selected Global Breaking News 01|Alibaba Cloud Launches MongoDB 8.3 Domestically: Three “Native” Capabilities for Vector Search, Auto‑Embedding, and Intelligent O&M On June 1, Alibaba Cloud became the first in China to launch MongoDB 8.3. This version deeply integrates three major AI capabilities – vector search, auto‑embedding, and intelligent O&M – directly into the database engine, moving away from “add‑on” AI solutions and achieving an AI‑Native design philosophy of “no data movement, no capability assembly, simplified architecture.” Three Native AI Capabilities: Native Search: Vector and full‑text search are built into the engine layer; a single pipeline completes hybrid search combining “vector + full‑text + scalar,” eliminating the need for applications to switch between multiple systems. Native Vectorisation: Write‑time auto‑embedding, transparent to applications, zero sync overhead; the entire flow from data write to vector generation is completed within the same database. Native O&M: Natural language management; AI‑assisted slow query analysis, index recommendations, and parameter tuning, covering all versions. MongoDB 8.3 also delivers impressive OLTP performance: compared to version 8.0, write throughput increases by 35%, read throughput by 45%, and ACID transaction throughput by […]

HiddenMerit Daily · Issue 37

📊 HiddenMerit Daily · Issue 37 Focus on Database Frontiers, Practical Insights for DBAs June 5, 2026 | 5 Selected Global Breaking News 01|Microsoft Azure HorizonDB Launches Public Preview: A PostgreSQL Rebuilt for AI Agents, Storage Engine Rewritten in Rust On June 2, at the Build 2026 conference keynote, Microsoft officially announced that Azure HorizonDB has entered public preview. This is a PostgreSQL‑compatible cloud database rebuilt from the ground up for agentic AI workloads, now available in 5 Azure regions globally. HorizonDB is not a simple upgrade to Azure Database for PostgreSQL, but a completely new architectural design. Key technical points: “Database‑as‑a‑log” architecture: Transactions are committed directly to a shared WAL (Write‑Ahead Log) storage, achieving sub‑millisecond multi‑region commit latency and eliminating the multi‑step coordination overhead of traditional PostgreSQL. Rust storage engine: Microsoft explicitly chose Rust over C/C++ to eliminate memory safety vulnerabilities such as buffer overflows at the language level. This design is highly significant for unattended AI agent high‑frequency query scenarios. Storage‑compute separation: Storage automatically scales to 128TB, compute can scale to 3072 vCores, and supports up to 15 read replicas. DiskANN vector search: Natively embedded vector search capability, supporting vectors of up to 16,000 dimensions (far exceeding pgvector’s […]
生成中...
扫描二维码
扫描二维码