In my company we store financial data for hundreds of thousands of clients in sql db. It's decade okd system and we have hundreds of tables, stored procedures (

In my company we store financial data for hundreds of thousands of clients in sql db. It's decade okd system and we have hundreds of tables, stored procedures (some touching dozen+ tables) and rely on transactions. It took me weeks to convince my managers not to migrate to new hot nosql solution because "it's in cloud, it's scalable and it also supports sql queries".