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#thesqlquerycoach search results

SQLQueryCoach's profile picture. SQL & Database Enthusiast 💻 | Simplifying data, one query at a time | Tutorials, tips & backend logic | #SQL #Database #Coding
The SQL Query Coach
@SQLQueryCoach
Dec 16

Every organisation needs people who understand data. SQL gives you that superpower. #CareerGrowth #LearnSQL #TheSQLQueryCoach youtube.com/playlist?list=…

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SQLQueryCoach's profile picture. SQL & Database Enthusiast 💻 | Simplifying data, one query at a time | Tutorials, tips & backend logic | #SQL #Database #Coding
The SQL Query Coach
@SQLQueryCoach
Dec 6

Indexes are like the table of contents of a book. They help SQL find data faster. Use them wisely. #DatabaseDesign #SQLPerformance #TheSQLQueryCoach youtube.com/playlist?list=…

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SQLQueryCoach's profile picture. SQL & Database Enthusiast 💻 | Simplifying data, one query at a time | Tutorials, tips & backend logic | #SQL #Database #Coding
The SQL Query Coach
@SQLQueryCoach
Dec 9

SQL is the gateway to Data Science. If you can extract clean data, models become easier. #DataScienceJourney #SQLPower #TheSQLQueryCoach youtube.com/playlist?list=…

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SQLQueryCoach's profile picture. SQL & Database Enthusiast 💻 | Simplifying data, one query at a time | Tutorials, tips & backend logic | #SQL #Database #Coding
The SQL Query Coach
@SQLQueryCoach
Dec 15

LEFT JOIN is the most used JOIN in analytics. It preserves your main dataset. #SQLJoins #DataAnalysis #TheSQLQueryCoach youtube.com/playlist?list=…

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SQLQueryCoach's profile picture. SQL & Database Enthusiast 💻 | Simplifying data, one query at a time | Tutorials, tips & backend logic | #SQL #Database #Coding
The SQL Query Coach
@SQLQueryCoach
Dec 11

A good SQL query answers a business question, not just returns rows. Think beyond code. Think value. #BusinessIntelligence #SQLThinking #TheSQLQueryCoach youtube.com/playlist?list=…

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SQLQueryCoach's profile picture. SQL & Database Enthusiast 💻 | Simplifying data, one query at a time | Tutorials, tips & backend logic | #SQL #Database #Coding
The SQL Query Coach
@SQLQueryCoach
Dec 13

Normalize your data, but not too much. Balance matters. Good databases are practical, not perfect. #DatabaseDesign #SQLArchitecture #TheSQLQueryCoach youtube.com/playlist?list=…

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SQLQueryCoach's profile picture. SQL & Database Enthusiast 💻 | Simplifying data, one query at a time | Tutorials, tips & backend logic | #SQL #Database #Coding
The SQL Query Coach
@SQLQueryCoach
Dec 13

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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SQLQueryCoach's profile picture. SQL & Database Enthusiast 💻 | Simplifying data, one query at a time | Tutorials, tips & backend logic | #SQL #Database #Coding
The SQL Query Coach
@SQLQueryCoach
Dec 12

COUNT(*) tells you how many rows exist. COUNT(column) tells you how many values are NOT null. Simple but important. #SQLTips #DataQuality #TheSQLQueryCoach youtube.com/playlist?list=…

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SQLQueryCoach's profile picture. SQL & Database Enthusiast 💻 | Simplifying data, one query at a time | Tutorials, tips & backend logic | #SQL #Database #Coding
The SQL Query Coach
@SQLQueryCoach
18 h

Filtering isn’t enough. Master WHERE + HAVING. One filters rows, the other filters aggregates. #SQLLogic #TechLearning #TheSQLQueryCoach youtube.com/playlist?list=…

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SQLQueryCoach's profile picture. SQL & Database Enthusiast 💻 | Simplifying data, one query at a time | Tutorials, tips & backend logic | #SQL #Database #Coding
The SQL Query Coach
@SQLQueryCoach
Dec 10

Always write readable SQL. Future-you will thank past-you. Indent. Space. Comment. #CleanCode #SQLBestPractices #TheSQLQueryCoach youtube.com/playlist?list=…

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SQLQueryCoach's profile picture. SQL & Database Enthusiast 💻 | Simplifying data, one query at a time | Tutorials, tips & backend logic | #SQL #Database #Coding
The SQL Query Coach
@SQLQueryCoach
Nov 29

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. youtu.be/JAAKf_k2bio #TheSQLQueryCoach #sql #DataScience

SQLQueryCoach's tweet card. Joining Tables in SQL Explained: INNER, LEFT & RIGHT JOIN (Simple...

youtube.com

YouTube

Joining Tables in SQL Explained: INNER, LEFT & RIGHT JOIN (Simple...

Source: youtube.com
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