Tweet Teratas untuk #SQLPractice
SQL Practice:
Question: Employee Bonus (Easy)
Solved using LEFT JOIN
Practicing one query at a time.
#Consistency #SQLPractice #LearningInPublic
Day 6 of SQL Practice
Question: Rising Temperature
Solved using: SELF JOIN + DATEDIFF()
- Good reminder that sometimes the table itself is the best reference.
#SQLPractice #LeetCode #LearningInPublic #Day6
Day 5 of SQL Practice
Question: Delete Duplicate Emails
Solved using: DELETE + Subquery
πLearnings:
β’ How to remove duplicates safely
β’ Revised DELETE vs DROP vs TRUNCATE
#SQLPractice #LeetCode #LearningInPublic #Day5
Day 4 of SQL Practice
Question: Customers Who Never Order
Solved using: LEFT JOIN + IS NULL
Key takeaway: Always use IS / IS NOT with NULL,
= doesnβt work with NULL values in SQL.
#SQLPractice #LeetCode #LearningInPublic #Day4
Day 3 of SQL practice
Solved: Duplicate Emails
Learned that with GROUP BY, we must use HAVING for conditions.
(Using WHERE earlier caused errors π
)
#Leetcode #SQLPractice #LearningInPublic #Day3
Day 2 of SQL Practice
Question: Employees Earning More Than Their Managers
Solved using a SELF JOIN (cross product + condition)
#SQLPractice #Leetcode #Day2
Day 1 of practicing SQL
Question: Combine Two Tables
Solved using LEFT JOIN
Key takeaway:
In PostgreSQL we have "FULL OUTER JOIN", while in SQL we use "UNION" to achieve the same result.
#LeetCode #SQLPractice #LearningInPublic
#Day96 β SQL Deep Dive π»β¨
Small steps, daily progress.
Today I learned:
β« SQL Clauses
β« UPDATE / DELETE
β« ALTER / TRUNCATE
solved practice problems π
The consistency is paying off. π±
#CodingJourney #100DaysOfCode #SQLPractice
Day 7 β IDC 21 Days of SQL w/ #DPDzero
Task: Find services with >100 refusals & avg satisfaction < 80 π
Spotting high-friction services = key for patient experience π
Day 8 π
@dpdzero @indiandataclub
#21DaysSQLChallenge #SQLWithIDC #IndianDataClub #SQLPractice #Day7
Took on βThe Blunderβ on @hackerrank ...
Letβs just say the problem name was accurate π
But it helped me learn the REPLACE() function β
Small mistake, solid lesson π
#SQLPractice #BuildInPublic #HackerRank #TechTwitter
π SQL grind today: Tables βοΈ Data βοΈ Keys βοΈ Queries βοΈ
#SQL #SQLQueries #SQLPractice #LearnSQL #MySQL #PostgreSQL #SQLDeveloper #Database #DatabaseDesign #QueryLanguage #SQLTips
β‘οΈJust me, MySQL Workbench, and a challenge of 50+ SQL questions.
Diving deep into subqueries, joins, and schema design.
#SQLPractice #MySQL #BuildInPublic #100xDevs #SQLQueries #DatabaseDesign #WebDev #BackendDevelopment #LearningToCode #CodeNewbie #DevJourney #LearnSQL #MySQL
π Day 2 of learning #OracleSQL with SQL*Plus
π Practiced inserting NULLs, creating tables, & using Primary Keys
π» Single table queries on EMP table
Loving the progress! π₯
#Day2 #SQLPractice #100DaysOfCode #BCAStudent #LearnSQL #SQLQueries #DatabaseSkills #TechJourney
Hey all!
Been offline for a bit, but Iβve kept practicing SQL!
Itβs tough at first, but with steady effort, Iβm still crushing it. πͺ
#DataAnalytics #Data #SQLPractice #LearningJourney
Iβm beyond excited and deeply grateful to the amazing team at @LearnwithWiDa and our facilitator @ibn_wittig for offering this free mentorship.
Hereβs to more growth and more data wins ahead!
#DataAnalytics #SQLPractice #WomenInTech #LearnWithWIDA #GratitudeJourney
Week 3 of the SQL Mentorship class at #LearnWithWIDA done
We explored stored procedures: automating queries and enhancing database efficiency.
Scored 25/25 in the assessment!
Grateful for this free mentorship and the consistent growth.
@ibn_wittig @LearnwithWiDa
#SQLPractice
Week 2 of the SQL Mentorship class at #LearnWithWIDA done
We dove into intermediate SQL joins and real-world queries across Students, Courses & Enrollments data.
π― Scored 25/25 in the assessment!
Grateful for this free mentorship and continuous growth.
@ibn_wittig @LearnwithWiDa
Week 1 of the SQL Mentorship class at #LearnWithWIDA done!
We explored SQL-driven insights for WIDA Supermarketβanalyzing sales, customer behavior, and product performance.
Scored 23/25 in the exam! Grateful for growth, ready for more.
#SQLPractice
@ibn_wittig @LearnwithWiDa
Day 5 of my LeetCode SQL Journey!
Today I solved 2 more SQL questions and every query is making me better at thinking logically and writing cleaner code.
Consistency is the key, and Iβm enjoying the process of improving step by step.
#LeetCode #SQLPractice #DataScience
Day 4 of my LeetCode SQL Journey!
Today I solved 2 more SQL questions and every query is making me better at thinking logically and writing cleaner code.
Consistency is the key, and Iβm enjoying the process of improving step by step.
#LeetCode #SQLPractice #DataScience
Day 3 of my LeetCode SQL Journey!
Today I solved 2 more SQL questions and every query is making me better at thinking logically and writing cleaner code.
Consistency is the key, and Iβm enjoying the process of improving step by step.
#LeetCode #SQLPractice #DataScience
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