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Start here — five steps, not a hundred tabs

Dinesh Chandra writes from production Snowflake, Databricks, and Airflow work. Follow this path once. Then pick a stack from thefull catalog.

1. Step 1

   SQL you can defend

   Windows, grain, and anti-joins. Practice in the playground, then read the window guide.

   SQL PlaygroundWindow functionsWindows cheat sheet

2. Step 2

   One warehouse, cost first

   Snowflake credits and Query Profile before Cortex. If you live on Databricks, start with Delta instead.

   Snowflake costDelta lakehouseCortex / Gen AI sheet

3. Step 3

   Transform and orchestrate

   dbt for grain tests. Airflow for the clock. Do not start both in the same weekend.

   First dbt projectFirst Airflow DAG

4. Step 4

   Interview and certs

   Say the first sentence out loud. Then sit a practice exam — including SnowPro Specialty: Gen AI.

   Interview prepBy companyGen AI practice exam

5. Step 5

   Courses and books

   Official YouTube and docs first. Udemy topic pages second. One book per stack, not twelve tabs.

   Resources by stackAll articles