Master Essential SQL Techniques for Data Analyst Interviews

This article presents a comprehensive guide to essential SQL skills for data‑analysis positions, covering join operations, difference detection, duplicate removal, missing‑value handling, multi‑condition and fuzzy filtering, aggregation, conditional calculations, trimming, cost computation, and includes a collection of practical interview questions with sample queries.

Database QueriesSQLSQL Basics

0 likes · 10 min read

Master Essential SQL Techniques for Data Analyst Interviews

FunTester

Nov 25, 2022 · Databases

100 Common SQL Interview Questions with Answers and Explanations

This article presents 100 typical SQL interview questions covering basic queries, advanced techniques, and database design, illustrated with three sample tables (employee, department, job) and detailed answers, code examples, and analysis for both MySQL and Oracle implementations.

QueriesSQLSQL Advanced

0 likes · 50 min read

100 Common SQL Interview Questions with Answers and Explanations

NiuNiu MaTe

Sep 23, 2021 · Databases

Essential MySQL Interview Guide: Core Concepts, Queries, and Best Practices

This article walks through essential MySQL interview topics, covering basic concepts, OLTP vs OLAP, normalization forms, DML/DDL/DCL, varchar vs char trade‑offs, storage engines, ACID properties, primary and foreign keys, and how to monitor running queries, all presented from an interviewer's perspective.

ACIDDatabase InterviewSQL Basics

0 likes · 8 min read

Essential MySQL Interview Guide: Core Concepts, Queries, and Best Practices

Aikesheng Open Source Community

Sep 7, 2020 · Databases

SQL SELECT Statement Tutorial and Book Giveaway Announcement

This article announces a monthly giveaway of the newly upgraded 5th edition of Ben Forta's SQL Essentials book, outlines its features, author background, and target readers, and provides a detailed tutorial on using the SELECT statement to retrieve single and multiple columns with example code.

Ben FortaBookSQL

0 likes · 8 min read

MaGe Linux Operations

May 3, 2017 · Databases

Master SQL Server Basics: From SELECT to DELETE with Real Examples

This article walks through the fundamentals of SQL Server, covering installation, core SQL concepts, DML and DDL commands, and detailed examples of SELECT, INSERT, UPDATE, and DELETE statements with accompanying syntax illustrations to help beginners master relational database operations.

DELETEDatabase tutorialINSERT INTO

0 likes · 7 min read

Master SQL Server Basics: From SELECT to DELETE with Real Examples