Aman Khan | Data Engineering

@amankhandata.bsky.social

Data Engineer — 3 yrs of SAP HANA → Oracle & Snowflake migrations in production. Now MSc AI @ BTU Cottbus, Germany. Writing about what's under the SQL: pages, row storage, indexes, warehousing.

1/ For 3 years I wrote SQL against Oracle. ROWID was just there useful, reliable, never in the way. That's what a good abstraction does. You never need to look underneath it I looked underneath it. Its the thing that makes indexes possible How a database actually stores a row: