Author and developer Robin Dewson will show you the way from beginner to SQL Server 2008 professional. Learn to install SQL Server 2008 and navigate around Management Studio before getting right to the heart of mastering fundamental SQL Server 2008 tasks: creating tables, storing data, securing da...
MySQL, SQL and Stored Procedures from Beginner to Advanced 总共18.5 小时更新日期 2016年6月 评分:4.6,满分 5 分4.627,685 当前价格US$64.99 10 Day MySQL Bootcamp | My SQL Database Design for Beginners 总共15.5 小时更新日期 2025年4月 评分:4.6,满分 5 分4.61,587 当前价格US$19.99 Functional Progr...
smoothly moving you from beginner to advanced subjects. Coverage of this title includes: understanding basic database concepts; getting to know database types - file server, client server, relational and more; learning Structured Query Language (SQL) and SQL Server's Transact-SQL; creating efficient...
-- 下面是一条SQL计算用户留存的方法: select t1.login_date as start_date -- 用户活跃的起始日期 , t2.login_date next_date-- 用户在起始日期之后,再次活跃的日期 , count(t1.uid) as uv -- 同时满足在start_date和next_date都活跃的用户数 from (select uid, login_date from user_login_info gro...
SQL Data Types: A Beginner’s Guide How to Create and Drop Tables in SQL? SELECT Query in SQL – Master the Basics SQL SELECT DISTINCT SQL INSERT INTO Statement WHERE Clause in SQL SQL UPDATE Statement SQL DELETE Statement DELETE Query and TRUNCATE Function in SQL LIKE and BETWEEN Operators...
CTEs and subqueries are often seen as the same thing, written slightly differently. That’s far from the truth. Let’s examine their differences, find a winner, and end this debate about which one is better. SQL Beginner’s Guide to Subqueries in SQL- Feb 10, 2025. ...
Here’s what’s much harder to find.Challenging, well-designed problems. Problems that will take you, one small step at a time, from beginner level, basic SQL all the way to advanced SQL. SQL Practice Problems walks you through challenging, unique, andfunproblems. ...
SQL 语法支持:Log Parser Lizard 支持常见的 SQL 查询操作,包括 SELECT、FROM、WHERE、GROUP BY、ORDER BY 等常用功能,甚至支持 JOIN 等高级操作。 虚拟表格:解析后的日志数据会被转换为内存中的虚拟表格。每个日志文件或日志流可以视为一个虚拟表,用户可以对这些表格进行 SQL 查询操作。 查询优化:引擎在执行查询...
LearnSQL.comis an online platform offering plenty of interactive SQL courses. These range from beginner to advanced levels and can be done directly in the browser; there’s no need to install databases or other software. Each course allows you to interactively practice what you’ve learned. It...
I found this book especially useful in SQL beginner to expert journey. It covers useful basic SQL concept like appropriate technique of filtering the data, basic SQL functions then it moves towards expert level as SQL window functions, query optimization for better performance, Impact of Indexing,...