--- title: "Ahmed Samir (@AhmedSamir) | Hashnode" description: "Backend Software Engineer. Passionate about Software Engineering and Backend Technologies. Read the latest articles by Ahmed Samir on Hashnode." url: "https://hashnode.com/@AhmedSamir" --- @AhmedSamir # Ahmed Samir @AhmedSamir · Egypt · Joined March 2022 Backend Software Engineer. Passionate about Software Engineering and Backend Technologies. [Website](https://dev.page/samra) ### [SQL Queries For Mere Mortals: Thinking In Sets Part 2](https://samra.hashnode.dev/sql-queries-for-mere-mortals-thinking-in-sets-part-2?utm_source=hashnode&utm_medium=feed) Sets Continued In Part One we talk about concept of sets, operations on sets, started with the first one which is intersection. Now in This part we'll complete our journey in sets by talking about the other two operations which are difference and ... 10 min read · [samra.hashnode.dev](https://samra.hashnode.dev/sql-queries-for-mere-mortals-thinking-in-sets-part-2?utm_source=hashnode&utm_medium=feed) [May 9, 2022](https://hashnode.com/posts/sql-queries-for-mere-mortals-thinking-in-sets-part-2/627993787f98319956cd3823) ### [SQL Queries For Mere Mortals: Thinking In Sets Part 1](https://samra.hashnode.dev/sql-queries-for-mere-mortals-thinking-in-sets-part-1?utm_source=hashnode&utm_medium=feed) Thinking In Sets, Intersect in SQL 8 min read · [samra.hashnode.dev](https://samra.hashnode.dev/sql-queries-for-mere-mortals-thinking-in-sets-part-1?utm_source=hashnode&utm_medium=feed) [May 9, 2022](https://hashnode.com/posts/sql-queries-for-mere-mortals-thinking-in-sets-part-1/627991827f98319956cd3815) ### [SQL Queries For Mere Mortals: Filtering Your Data](https://samra.hashnode.dev/sql-queries-for-mere-mortals-filtering-your-data?utm_source=hashnode&utm_medium=feed) Filtering Your Data by Writing Predicates in Where Clause 15 min read · [samra.hashnode.dev](https://samra.hashnode.dev/sql-queries-for-mere-mortals-filtering-your-data?utm_source=hashnode&utm_medium=feed) [1](https://hashnode.com/posts/sql-queries-for-mere-mortals-filtering-your-data/625c12902f84e0d4fc33e7ad) [Apr 17, 2022](https://hashnode.com/posts/sql-queries-for-mere-mortals-filtering-your-data/625c12902f84e0d4fc33e7ad) ### [SQL Queries For Mere Mortals: Creating a Simple Query](https://samra.hashnode.dev/sql-queries-for-mere-mortals-creating-a-simple-query?utm_source=hashnode&utm_medium=feed) SQL Queries for mere mortals chapter 4 notes and tips 3 min read · [samra.hashnode.dev](https://samra.hashnode.dev/sql-queries-for-mere-mortals-creating-a-simple-query?utm_source=hashnode&utm_medium=feed) [Mar 19, 2022](https://hashnode.com/posts/sql-queries-for-mere-mortals-creating-a-simple-query/623624458e4fae3f767ddb3b)