Here is the roadmap that I followed:
๐ฆ๐๐ฒ๐ฝ ๐ญ: ๐ฆ๐ค๐
- Basic SQL Syntax
- DDL, DML, DCL
- Joins & Subqueires
- Views & Indexes
- CTEs & Window Functions
๐ฆ๐๐ฒ๐ฝ ๐ฎ: ๐ฃ๐๐๐ต๐ผ๐ป
- Fundamentals
- Numpy
- Pandas
๐ฆ๐๐ฒ๐ฝ ๐ฏ: ๐ฃ๐๐๐ฝ๐ฎ๐ฟ๐ธ
- RDD
- Dataframe
- Datasets
- Spark Streaming
- Optimization techniques
๐ฆ๐๐ฒ๐ฝ ๐ฐ: ๐๐ฎ๐๐ฎ ๐ช๐ฎ๐ฟ๐ฒ๐ต๐ผ๐๐๐ถ๐ป๐ด/๐๐ฎ๐๐ฎ ๐ ๐ผ๐ฑ๐ฒ๐น๐ถ๐ป๐ด
- OLAP vs OLTP
- Star & Snowflake Schema
- Fact & Dimension Tables
- Slowly Changing Dimensions (SCD)
๐ฆ๐๐ฒ๐ฝ ๐ฑ: ๐๐น๐ผ๐๐ฑ ๐ฆ๐ฒ๐ฟ๐๐ถ๐ฐ๐ฒ๐
- Nosql DB
- Relational DB
- Datawarehousing
- Scheduling & Orchestration
- Messaging
- ETL Services
- Storage Services
- Data Processing Service