🔥 𝗦𝘁𝗼𝗽 𝗪𝗮𝘁𝗰𝗵𝗶𝗻𝗴 𝗧𝘂𝘁𝗼𝗿𝗶𝗮𝗹𝘀.

𝗦𝘁𝗮𝗿𝘁 𝗣𝗿𝗮𝗰𝘁𝗶𝗰𝗶𝗻𝗴 𝗟𝗶𝗸𝗲 𝗮 𝗥𝗲𝗮𝗹 𝗗𝗮𝘁𝗮 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿.

If you want 𝗷𝗼𝗯-𝗿𝗲𝗮𝗱𝘆 𝗦𝗤𝗟, 𝗣𝘆𝘁𝗵𝗼𝗻, 𝗣𝘆𝗦𝗽𝗮𝗿𝗸, 𝗔𝘇𝘂𝗿𝗲 & 𝗦𝗻𝗼𝘄𝗳𝗹𝗮𝗸𝗲 skills,

Here’s where to practice and what exactly to practice because these are mainly expected in all the companies especially in EY, PwC, KPMG & Deloitte 👇

1️⃣ 𝗦𝗤𝗟 — 𝗔𝗻𝗮𝗹𝘆𝘁𝗶𝗰𝗮𝗹 & 𝗣𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻-𝗟𝗲𝘃𝗲𝗹

LeetCode (SQL): https://lnkd.in/gudFeUbZ
HackerRank (SQL): https://lnkd.in/g9hpE6vQ
SQLZoo: https://sqlzoo.net/
• JOINs (INNER, LEFT, RIGHT)
• GROUP BY & HAVING
• Window functions (ROW_NUMBER, RANK)
• CTEs (WITH clause)
• Query optimization logic

2️⃣ 𝗣𝘆𝘁𝗵𝗼𝗻 — 𝗗𝗮𝘁𝗮 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴 𝗙𝗼𝗰𝘂𝘀

LeetCode (Python): https://lnkd.in/gaEvhsvi
HackerRank (Python): https://lnkd.in/gGHkAE47
Exercism (Python): https://lnkd.in/gAuvZmwZ
• Functions & modules
• File handling (CSV, JSON)
• Data structures (list, dict)
• Error handling & logging
• Clean, readable code

3️⃣ 𝗣𝘆𝗦𝗽𝗮𝗿𝗸 — 𝗕𝗶𝗴 𝗗𝗮𝘁𝗮 𝗛𝗮𝗻𝗱𝘀-𝗢𝗻

Databricks Community: https://lnkd.in/gpDTBDpq
SparkByExamples: https://lnkd.in/gfjnQ7Ud
Kaggle Notebooks: https://lnkd.in/gm7YU7Fp
• DataFrames & transformations
• Joins & aggregations
• Partitioning & caching
• Handling large datasets
• Performance tuning basics

4️⃣ 𝗔𝘇𝘂𝗿𝗲 — 𝗘𝗻𝗱-𝘁𝗼-𝗘𝗻𝗱 𝗗𝗮𝘁𝗮 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴

Azure Free Account: https://lnkd.in/gk_Dpb9v
Microsoft Learn: https://lnkd.in/gb8nTnBf
Azure Data Factory: https://lnkd.in/ggpsYk7X
• Data ingestion using ADF
• ADLS Gen2 storage layers
• Parameterized pipelines
• Incremental data loads
• Monitoring & debugging

5️⃣ 𝗦𝗻𝗼𝘄𝗳𝗹𝗮𝗸𝗲 — 𝗥𝗲𝗮𝗹 𝗗𝗮𝘁𝗮 𝗪𝗮𝗿𝗲𝗵𝗼𝘂𝘀𝗶𝗻𝗴

Snowflake Trial: https://lnkd.in/g2dHRA9f
Sample Data: https://lnkd.in/grsV2X47
Snowflake Learn: https://lnkd.in/gVpiNKHF

• Data Loading and Unloading
• Fact & dimension modeling
• ELT inside Snowflake
• Query Profile analysis
• Cost & performance tuning