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Postări cu #LearningSQL

#LearningSQL

Postări publice de pe X care folosesc #LearningSQL.

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  1. Moyiné@Moyineee
    Data Analysis Learning - Part 2 Learning SQL GM guys 👋 Hope you’re good. Today, I practiced aggregate functions using practice questions from the SQL video I’m learning from. The first question gave me some trouble, but I solved it after taking a long break.
    Descarcă
    Moyiné @Moyineee
    Data Analysis Learning - Part 2 Learning SQL GM guys 👋 Hope you’re good. Today, I learned about Aggregate Functions in SQL: SUM, COUNT, AVG, MAX, MIN.
    125106
  2. Moyiné@Moyineee
    Data Analysis Learning - Part 2 Learning SQL GM guys 👋 Hope you’re good. Today, I learned about Aggregate Functions in SQL: SUM, COUNT, AVG, MAX, MIN.
    Descarcă
    Moyiné @Moyineee
    Data Analysis Learning - Part 2 🧵 Learning SQL Today, I learned about arithmetic operations in SQL. Using SQLite and actual, I practiced: • (+) addition • (-) subtraction • (*) multiplication • (/) division • (%) modulus
    317147
  3. Moyiné@Moyineee
    @Moyineee
    ...everything in the SELECT statement at the same time, so the alias isn’t available yet for another operation like an aggregate function That’s what I learned today Screenshots of my queries are in this thread Still learning 🌱 Still growing 🚀 One step at a time
    Descarcă
    10314
  5. Moyiné@Moyineee
    Data Analysis Learning - Part 2 Learning SQL GM guys 👋 Hope you’re good. Today, I learned about NULL values in SQL and solved some practice questions.
    Descarcă
    Moyiné @Moyineee
    Data Analysis Learning - Part 2 Learning SQL GM guys 👋 Hope you’re good. Today, I practiced aggregate functions using practice questions from the SQL video I’m learning from. The first question gave me some trouble, but I solved it after taking a long break.
    31898
  6. Moyiné@Moyineee
    @Moyineee
    From my understanding, NULL values represent empty cells or fields. Fields that contain nothing at all, not even spaces (like ' '). In general, 0 is greater than NULL, but in some arithmetic operations, NULL can be treated as zero depending on how the operation is handled.
    Descarcă
    20426
  8. Sunny Sahsi@SahsiSunny
    Just started my SQL journey with #SQLBolt! Lesson 1 is all about SELECT queries. SQL is like a language for databases, and SELECT is how we ask for data. Let's dive in!
    2191.6K
  9. Sunny Sahsi@SahsiSunny
    @SahsiSunny
    5. Find all information about each film: This provides detailed info on all movies in the database.
    Descarcă
    10094
  10. Sunny Sahsi@SahsiSunny
    @SahsiSunny
    SQL makes it easy to retrieve specific data from a database. Can't wait to learn more! Next up, we'll explore queries with constraints. #LearningSQL Thanks @twts_tejas for suggesting me to learn SQL from SQLBolt. I am enjoying it. Link -
    1131.2K
  11. Moyiné@Moyineee
    Data Analyst Learning - Part 2 Learning SQL GM guys, Hope you’re doing great. Here’s a quick update on what’s been happening with me after learning MS Excel.
    Descarcă
    416346
  12. Moyiné@Moyineee
    @Moyineee
    After Excel, I took a short break, started and completed posting my Data Analyst 2026 Roadmap thread series, and then moved on to SQL. I started learning SQL on January 14th, but paused briefly to finish the DA roadmap thread series. I picked SQL back up on the 21st.
    10230
  14. Orkun Tahir Aran, PhD@orc_arn
    1⃣Hi everyone, let's start as promised yesterday. A quick note before starting, check @levikul09 for statistics and python related information. These tweets are my notes from @OReillyMedia #LearningSQL book chapter 1. All the credit goes to that book.
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  17. Moyiné@Moyineee
    Data Analysis Learning - Part 2 Learning SQL GM guys 👋 Hope you’re good. Today was a very lazy day, but I’m still here 🫠. I learned about JOINS in SQL. There are four types of joins. I’ll explain the ones I learned using Table A and Table B. From my understanding:
    Descarcă
    Moyiné @Moyineee
    Data Analysis Learning - Part 2 Learning SQL GM guys 👋 Hope you’re good. Today, I learned about NULL values in SQL and solved some practice questions.
    315105
  18. Moyiné@Moyineee
    @Moyineee
    3️⃣ INNER JOIN Returns only values that exist in both Table A and Table B. If a value isn’t present in both tables, it won’t be returned. There’s one more join that I didn’t learn today. I’ll continue from this in tomorrow’s lesson.
    10314
  21. Priyanshu@prynsustwt
    Day4 of #learningSQL in 5 days (Yesterday missed post) - practice more questions - learnt about (row_number, rank, dense_rank) window functions - did easy, medium level leetcode question around that topic - started learning JOINS in sql That's it ✨ See you later 👋
    006161
  22. Sir Deffi⚡@DeffiFavour
    Day 8 of #learningSQL 😊 Topic(s) covered 1. WINDOWS RANKING FUNCTION The Ranking functions are used to assign ranks or values to rows of data. The window ranking function must make use of the ORDER BY clause
    Sir Deffi⚡ @DeffiFavour
    Day 7 of #learningSQL 😊 Topic(s) covered 1. WINDOWS function 2. ⁠ Calculating Running and Rolling Totals 1. WINDOWS FUNCTION Also referred to as analytical functions. WINDOWS Function performs calculations (e.g aggregation) on a specific subset of data and return a value(s)
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  23. Sir Deffi⚡@DeffiFavour
    Day 7 of #learningSQL 😊 Topic(s) covered 1. WINDOWS function 2. ⁠ Calculating Running and Rolling Totals 1. WINDOWS FUNCTION Also referred to as analytical functions. WINDOWS Function performs calculations (e.g aggregation) on a specific subset of data and return a value(s)
    80195
  24. The Data Boy@Fortune_star01
    Just updated my MySQL playlist on YouTube. This new episode covers ORDER BY, sorting, LIMIT, and using DISTINCT to clean results. Simple concepts, but essential for real data analysis. Watch the update on my channel The Data Boy: #SQL #MySQL #learningsql
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  26. Shrinath Joshi@ImShriJoshi
    💡 SQL learning: Solving a “Repeated Payments” problem. The goal: find payments made at the same merchant, with the same card & amount, within 10 minutes. The key was comparing each transaction with the previous matching transaction. That’s where LAG() comes in. 👇
    1006
  27. Shrinath Joshi@ImShriJoshi
    @ImShriJoshi
    The mental model: GROUP → SORT → LAG → TIME DIFF → FILTER → COUNT LAG() = find the previous row. Key takeaway: whenever a SQL problem says “compare the current row with the previous row”, think LAG(). Small concepts → big improvements. 🚀 #SQL #LearningSQL #100DaysOfCode
    1026
  29. Moyiné@Moyineee
    Data Analysis Learning - Part 2 🧵 Learning SQL Today, I learned about arithmetic operations in SQL. Using SQLite and actual, I practiced: • (+) addition • (-) subtraction • (*) multiplication • (/) division • (%) modulus
    Descarcă
    112142
  30. Moyiné@Moyineee
    @Moyineee
    Other key concepts: • GROUP BY - Groups rows that share the same property so aggregate functions can be applied. • HAVING - Filters groups based on aggregate function results. It’s similar to WHERE, but WHERE filters rows, while HAVING filters groups.
    10216
  32. Moyiné@Moyineee
    Data Analysis Learning - Part 2 Learning SQL GM guys 👋 Hope you’re good. Today was busy, but I can’t miss a day (working day 😅) if I can. Today, I learned about FULL OUTER JOIN and solved a few practice questions. Explaining it using Table A and Table B:
    Descarcă
    Moyiné @Moyineee
    Data Analysis Learning - Part 2 Learning SQL GM guys 👋 Hope you’re good. Today was a very lazy day, but I’m still here 🫠. I learned about JOINS in SQL. There are four types of joins. I’ll explain the ones I learned using Table A and Table B. From my understanding:
    21474
  33. Moyiné@Moyineee
    @Moyineee
    FULL OUTER JOIN This join returns all the values you want from both Table A and Table B, even when there’s no matching or related value between the tables. That’s what I learned today. Still learning 🌱 Still growing
    Descarcă
    1029
  35. Priyanshu@prynsustwt
    Day 1 of #learningSQL in 5 days - Started learning < Revising SQL Database from Today : ) - Learnt basic database query commands, clauses, operators - CREATE, SELECT, WHERE, LOGICAL OPERATOR, ORDER BY, GROUP BY, HAVING, LIMIT & ALIASING, Aggregate functions. #sql #database : )
    001139
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