SQL in a Week: A Fast-Track Guide to Writing and Optimizing Queries Like a Pro
暫譯: 一週學會SQL：專業級查詢撰寫與優化的快速指南
Shah, Bhumika, Dubey, Devtosh
相關主題
商品描述
This book is your fast-track pocket guide to mastering SQL, designed for absolute beginners. This step-by-step book covers everything from basic queries to advanced optimization techniques, ensuring you learn to write SQL correctly. You'll explore essential topics such as data retrieval, filtering, sorting, joins, aggregations, and data modifications, while gaining insights into performance optimization--critical for real-world applications.
The seven-day plan includes real-world scenarios, hands-on exercises, and common mistakes to avoid. While traditional SQL books focus on syntax and how to use complex functions, this book emphasizes clear, readable, and efficient query writing that applies to real-world business questions. This book is ideal for aspiring data analysts, software developers, business professionals, and job seekers preparing for SQL interviews. The book helps you develop skills that are immediately applicable and relevant in the AI age.
Written by seasoned data professionals, this book is not just about speed--it's about building habits that industry experts rely on. The book outlines the questions to expect in your busines and how to answer them. By the end of this journey, you'll have the confidence to write robust, optimized queries that make a real impact in any database environment.
What You Will Learn
- Write SQL queries with confidence--from basic SELECT statements to complex joins, aggregations, and subqueries--so you can extract meaningful insights from any database
- Develop professional-grade SQL skills by mastering best practices for writing clean, efficient, and scalable queries that stand out in the industry
- Unlock the secrets of query optimization, indexing, and execution plans to write high-performance SQL that runs faster and more efficiently
- Apply SQL to real-world datasets across industries such as healthcare, retail, and finance, ensuring you're job-ready from day one
- Ace SQL interviews at top tech companies by practicing real-world problems, tackling optimization challenges, and avoiding common pitfalls that trip up candidates
Who this Book Is For
Absolute beginners who want to learn SQL, step by step, with a structured and practical approach. It is perfect for individuals with little to no prior experience in databases or programming, but who aspire to build a strong foundation in SQL for data-related careers.
商品描述(中文翻譯)
這本書是您快速掌握 SQL 的口袋指南，專為完全初學者設計。這本逐步指導的書籍涵蓋了從基本查詢到高級優化技術的所有內容，確保您能正確地撰寫 SQL。您將探索數據檢索、過濾、排序、聯接、聚合和數據修改等基本主題，同時獲得有關性能優化的見解——這對於實際應用至關重要。
七天計劃包括真實世界的情境、實作練習和常見錯誤的避免。傳統的 SQL 書籍專注於語法和如何使用複雜的函數，而這本書則強調清晰、可讀且高效的查詢撰寫，適用於實際的商業問題。這本書非常適合有志於成為數據分析師、軟體開發人員、商業專業人士以及準備 SQL 面試的求職者。這本書幫助您發展在 AI 時代中立即可用且相關的技能。
這本書由經驗豐富的數據專業人士撰寫，不僅僅是關於速度——而是關於建立行業專家所依賴的習慣。書中概述了您在商業中可能遇到的問題以及如何回答這些問題。在這段旅程結束時，您將有信心撰寫出強健且優化的查詢，對任何數據庫環境產生真正的影響。
您將學到什麼
- 自信地撰寫 SQL 查詢——從基本的 SELECT 語句到複雜的聯接、聚合和子查詢——讓您能從任何數據庫中提取有意義的見解
- 通過掌握撰寫乾淨、高效和可擴展查詢的最佳實踐，發展專業級的 SQL 技能，使您在行業中脫穎而出
- 解鎖查詢優化、索引和執行計劃的秘密，撰寫高性能的 SQL，使其運行更快且更高效
- 將 SQL 應用於醫療保健、零售和金融等行業的真實數據集，確保您從第一天起就具備就業準備
- 通過練習真實世界的問題、解決優化挑戰以及避免常見的陷阱，輕鬆應對頂尖科技公司的 SQL 面試
這本書適合誰
這本書適合完全初學者，想要逐步學習 SQL，並採用結構化和實用的方法。它非常適合對數據庫或程式設計幾乎沒有經驗的個人，但希望為數據相關的職業建立堅實的 SQL 基礎。
作者簡介
Bhumika believes SQL is a critical skill for professionals working with data, as it enables them to retrieve accurate information and transform it into actionable insights. She also emphasizes that SQL isn't just about writing queries, but it's about writing optimized queries that unlock efficiency and create real business impact.
Devtosh Dubey is a results-driven Senior Business Data Analyst with extensive experience in designing scalable data solutions, performing advanced statistical analyses, and leading cross-functional teams to deliver data-driven insights. With a strong PySpark, SQL, and statistical modeling background, Devtosh has optimized ETL pipelines and analytical workflows, significantly enhancing operational efficiency and supporting strategic business decisions. He has spearheaded high-impact analytical projects across healthcare and technology sectors, enabling targeted user segmentation, predictive modeling, and KPI-driven dashboard development. His work has contributed directly to revenue growth, client satisfaction, and streamlined data operations. Devtosh is also experienced in developing production-grade dashboards, managing curated audience segmentation, and reducing data latency through efficient integration strategies. His technical toolkit includes Python, SQL, Tableau, Power BI, and AWS Redshift, with proficiency in tools such as Pandas, SciPy, and Scikit-learn. He thrives in collaborative environments, is adept at mentoring colleagues, working with external partners, and translating complex data into actionable insights that support business objectives.作者簡介(中文翻譯)
Bhumika Shah 是一位成就卓越的工程師、博士生、演講者和教育者，專注於人工智慧（AI）、數據工程和資訊治理。擁有超過七年的經驗，她設計了可擴展的數據管道，加強了數據治理框架，並開發了基於 AI 的預測模型，提升了各行各業的效率。她的研究成果已發表於同行評審的期刊中，並且她積極倡導利用 AI 和數據工程來增強合規性和運營表現。她相信數據是一項強大的資產——當有效利用時，可以改變決策過程、推動創新，並為企業創造持久的影響。
Bhumika 成功通過了超過十幾場全球公司的技術面試，包括 MAANG 公司，這使她對在實際數據角色中所需的 SQL 技能有了第一手的了解。作為教授，她設計並教授了研究生級別的數據管理和分析課程，讓學生掌握 SQL、數據治理和基於雲的數據工程的實用專業知識。她還積極指導碩士生，幫助他們彌合學術理論與行業最佳實踐之間的差距。
目前，Bhumika 正在攻讀資訊科技博士學位，專注於探索 AI 對數據團隊的影響，並持續推進大數據分析、商業智慧和 AI 應用的研究。
Bhumika 認為 SQL 是從事數據工作的專業人士必備的關鍵技能，因為它使他們能夠檢索準確的信息並將其轉化為可行的見解。她還強調，SQL 不僅僅是編寫查詢，而是編寫 優化 的查詢，以解鎖效率並創造真正的商業影響。
Devtosh Dubey 是一位以結果為導向的高級商業數據分析師，擁有設計可擴展數據解決方案、執行高級統計分析和領導跨功能團隊以提供數據驅動見解的豐富經驗。憑藉強大的 PySpark、SQL 和統計建模背景，Devtosh 已優化 ETL 管道和分析工作流程，顯著提升了運營效率並支持戰略商業決策。他在醫療保健和科技領域主導了高影響力的分析項目，使得目標用戶細分、預測建模和 KPI 驅動的儀表板開發得以實現。他的工作直接促進了收入增長、客戶滿意度和數據操作的精簡。
Devtosh 也擅長開發生產級儀表板，管理精心策劃的受眾細分，並通過高效的整合策略減少數據延遲。他的技術工具包包括 Python、SQL、Tableau、Power BI 和 AWS Redshift，並熟練使用 Pandas、SciPy 和 Scikit-learn 等工具。他在協作環境中表現出色，擅長指導同事、與外部合作夥伴合作，並將複雜的數據轉化為支持商業目標的可行見解。
