Solana Accounts vs Web2 Databases

"Unlike when you are used to building full-stack applications; a Next.js frontend, connected to a Laravel backend, and modeling state in MySQL or PostgreSQL; moving to Solana requires rewiring how you think about data."

I've been exploring blockchain development with Solana, and the biggest hurdle initially is the phrase: "Everything is an account."

solana account $(solana address)

The output of the CLI command above maps out exactly how traditional Web2 database concepts translate to the Solana runtime.

Here is the side-by-side comparison I put together:

The Web2 vs. Solana comparison table

Concept	Web2	Solana
Data Storage	MySQL/PostgreSQL rows or MongoDB docs	A "flat" byte array in an Account
Logic vs. State	Your Laravel/Node code is the logic; the DB is the state	Both are Accounts; logic is just an account with executable: true
Primary Keys	Auto-increment IDs or UUIDs (e.g., user_id: 101)	Base58 Public Keys (32 bytes) or PDAs
Security/Auth	Middleware checks (e.g., $request->user())	The Runtime checks: only the "Owner" program can write
Filtering/Joins	SELECT * FROM table WHERE... (Server-side)	No Joins. You fetch the account by address or filter off-chain via RPC
Infrastructure	AWS/DigitalOcean monthly bills	"Rent": A lamport deposit you get back when you close() the account
Deployment	CI/CD pushes code to a server	Deploying a Program creates an account owned by the BPF Loader

The Biggest Takeaway

In a traditional setup, you deploy your code to a server, and that code orchestrates database transactions. On Solana, both your application logic (programs) and your user data live as accounts in the exact same global space.

There are no native queries, no joins, and no backend middleware guarding your tables. You pay upfront for the bytes you store via rent, and the runtime itself physically blocks unauthorized writes. Your database instincts around data modeling still matter, but the architectural execution is completely flipped.

#100DaysOfSolana