Explore tweets tagged as #theSQLQueryCoach
If you wondered where I went.. I was onboarding a new client onto our POS system. Turns out real queries pay better than X threads. Back now đ Please Show #theSQLQuerycoach around
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Every organisation needs people who understand data. SQL gives you that superpower. #CareerGrowth #LearnSQL #TheSQLQueryCoach
https://t.co/D9H9HLk5y4
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Your data science journey starts with âSELECT * FROM tableâ. Donât underestimate the small steps. #DataScience #SQLBeginners #TechUganda #TheSQLQueryCoach
https://t.co/D9H9HLjxIw
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SQL is the gateway to Data Science. If you can extract clean data, models become easier. #DataScienceJourney #SQLPower #TheSQLQueryCoach
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A good SQL query answers a business question, not just returns rows. Think beyond code. Think value. #BusinessIntelligence #SQLThinking #TheSQLQueryCoach
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If your query feels long, break it into CTEs. Readable > fancy. #CTE #SQLStyle #DataEngineering #TheSQLQueryCoach
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LEFT JOIN is the most used JOIN in analytics. It preserves your main dataset. #SQLJoins #DataAnalysis #TheSQLQueryCoach
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Normalize your data, but not too much. Balance matters. Good databases are practical, not perfect. #DatabaseDesign #SQLArchitecture #TheSQLQueryCoach
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Indexes are like the table of contents of a book. They help SQL find data faster. Use them wisely. #DatabaseDesign #SQLPerformance #TheSQLQueryCoach
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Always write readable SQL. Future-you will thank past-you. Indent. Space. Comment. #CleanCode #SQLBestPractices #TheSQLQueryCoach
https://t.co/D9H9HLk5y4
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You donât need to master everything today. SQL is a journey â one query at a time. #Motivation #SQLLearning #TheSQLQueryCoach
https://t.co/D9H9HLk5y4
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Filtering isnât enough. Master WHERE + HAVING. One filters rows, the other filters aggregates. #SQLLogic #TechLearning #TheSQLQueryCoach
https://t.co/D9H9HLjxIw
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COUNT(*) tells you how many rows exist. COUNT(column) tells you how many values are NOT null. Simple but important. #SQLTips #DataQuality #TheSQLQueryCoach
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Donât fear errors in SQL. Every âsyntax errorâ is a lesson pushing you toward mastery. #CodingLife #SQLJourney #TechMotivation #TheSQLQueryCoach
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Every data analyst should learn: ⢠SELECT ⢠GROUP BY ⢠HAVING ⢠JOIN ⢠SUM() ⢠COUNT() These 6 make you unstoppable. #Analytics #SQLFundamentals #DataSkills #TheSQLQueryCoach
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Before writing a complex query, ask: âWhat question am I really trying to answer?â Clarity reduces errors. #SQLMindset #DataScienceTips #Coding #TheSQLQueryCoach
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Pro tip: Always know your PRIMARY KEY before writing any JOIN. Itâs the anchor of your data. #SQLJoins #DataManagement #ProgrammingTips
https://t.co/D9H9HLk5y4
#TheSQLQueryCoach
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SQL JOINs are not hard theyâre just relationships: INNER = matching data LEFT = include all from left table RIGHT = include all from right #SQL #JoinsExplained #DataCareer #TheSQLQueryCoach
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@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
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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
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