If your query feels long, break it into CTEs. Readable > fancy. #CTE #SQLStyle #DataEngineering #TheSQLQueryCoach

SQL is the gateway to Data Science. If you can extract clean data, models become easier. #DataScienceJourney #SQLPower #TheSQLQueryCoach

COUNT(*) tells you how many rows exist. COUNT(column) tells you how many values are NOT null. Simple but important. #SQLTips #DataQuality #TheSQLQueryCoach

Normalize your data, but not too much. Balance matters. Good databases are practical, not perfect. #DatabaseDesign #SQLArchitecture #TheSQLQueryCoach

A good SQL query answers a business question, not just returns rows. Think beyond code. Think value. #BusinessIntelligence #SQLThinking #TheSQLQueryCoach

Always write readable SQL. Future-you will thank past-you. Indent. Space. Comment. #CleanCode #SQLBestPractices #TheSQLQueryCoach https://t.co/D9H9HLk5y4

@SumitM_X This is a classic use case for GROUP BY + HAVING. Group by Score and filter scores that appear more than once, then join back (or use a subquery) to return the student names. Simple question, but it tests real understanding of duplicates and aggregation. im #theSQLQueryCoach

Don’t fear errors in SQL. Every “syntax error” is a lesson pushing you toward mastery. #CodingLife #SQLJourney #TechMotivation #TheSQLQueryCoach

Indexes are like the table of contents of a book. They help SQL find data faster. Use them wisely. #DatabaseDesign #SQLPerformance #TheSQLQueryCoach

Before writing a complex query, ask: “What question am I really trying to answer?” Clarity reduces errors. #SQLMindset #DataScienceTips #Coding #TheSQLQueryCoach

Pro tip: Always know your PRIMARY KEY before writing any JOIN. It’s the anchor of your data. #SQLJoins #DataManagement #ProgrammingTips https://t.co/D9H9HLk5y4 #TheSQLQueryCoach

Every data analyst should learn: • SELECT • GROUP BY • HAVING • JOIN • SUM() • COUNT() These 6 make you unstoppable. #Analytics #SQLFundamentals #DataSkills #TheSQLQueryCoach

SQL JOINs are not hard they’re just relationships: INNER = matching data LEFT = include all from left table RIGHT = include all from right #SQL #JoinsExplained #DataCareer #TheSQLQueryCoach

Mastering SQL JOINs is one of the most important steps in becoming confident with relational databases. In this video, we break down INNER JOIN, LEFT JOIN, and RIGHT JOIN using clear examples from a School Database. https://t.co/RcYNDQ90Hx #TheSQLQueryCoach #sql #DataScience