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所在平台: Udemy |
课程主页: https://www.udemy.com/course/sql-interview-questions-practice-test-series/
课程评论：没有评论
**Coursera SQL面试题练习系列课程内容总结** 本课程旨在通过结构化的选择题，帮助学习者巩固SQL技能，涵盖了SQL的多个核心领域，为面试做好准备。 **核心学习内容包括：** 1. **SQL基础与核心概念：** 掌握数据库结构、数据类型、表创建，以及使用SELECT语句进行数据检索和条件过滤。 2. **数据操作与查询优化：** 学习INSERT、UPDATE、DELETE等数据操作，并探索索引和执行计划等优化技术，提升查询性能。 3. **连接、子查询与集合操作：** 掌握INNER、LEFT、RIGHT、FULL等连接类型，理解子查询、CTE（通用表表达式）以及UNION、INTERSECT、EXCEPT等集合操作。 4. **索引、约束与性能调优：** 学习主键、外键、约束的运用，以及索引如何影响性能，并了解高效数据库设计的最佳实践。 5. **存储过程、函数与触发器：** 探索通过存储过程和函数自动化任务，以及触发器在维护数据库完整性中的作用。 6. **事务、安全与高级SQL特性：** 理解事务管理（ACID、隔离级别）、SQL安全最佳实践、基于角色的访问控制，以及窗口函数和递归查询等高级功能。
This SQL Interview Questions Practice Test Series is designed to help you strengthen your SQL skills through structured multiple-choice questions covering a wide range of topics. The course provides a comprehensive understanding of SQL fundamentals, query optimization, and advanced database concepts.1. SQL Fundamentals and Core ConceptsUnderstand the basics of SQL, including database structure, data types, and table creation. Learn how to retrieve data using simple SELECT statements and apply filtering conditions.2. Data Manipulation and Query OptimizationMaster essential SQL operations such as INSERT, UPDATE, DELETE, and the efficient retrieval of data. Discover optimization techniques to enhance query performance, including indexing and execution plans.3. Joins, Subqueries, and Set OperationsWork with different types of joins (INNER, LEFT, RIGHT, FULL) to combine data from multiple tables. Explore subqueries, Common Table Expressions (CTEs), and set operations such as UNION, INTERSECT, and EXCEPT.4. Indexes, Constraints, and Performance TuningLearn about primary and foreign keys, constraints, and indexing strategies. Understand how indexing affects performance and apply best practices for efficient database design.5. Stored Procedures, Functions, and TriggersDive into procedural SQL by working with stored procedures and functions to automate repetitive tasks. Explore triggers and their role in maintaining database integrity.6. Transactions, Security, and Advanced SQL FeaturesUnderstand transaction management, ACID properties, and isolation levels. Gain insights into SQL security best practices, role-based access control, and additional advanced SQL capabilities such as window functions and recursive queries.
