SQLite vs MySQL
Choosing between an application database file and a shared database service starts with where your code and data live.
Compare the work you need to do
| Decision | SQLite | MySQL |
|---|---|---|
| Deployment | A library in your application; database files live with it. | A server that applications connect to over a database protocol. |
| Write coordination | One writer at a time per database; keep transactions short. | Designed for multiple client sessions; InnoDB coordinates transactional writes. |
| Operations | Plan file permissions, backups and application-level access. | Plan accounts, network access, server configuration and backups. |
| Migration | Flexible typing can hide mixed values in a column. | Review types, character sets, constraints and AUTO_INCREMENT behavior. |
A practical scenario
A personal inventory app used on one device can keep a SQLite file beside its application data. A hosted inventory service with many independent users updating shared stock may be easier to operate on MySQL. Count simultaneous write transactions, not just registered users.
Find a starting point
This short chooser suggests what to evaluate. It does not replace a benchmark or architecture review.
Before you choose
- Measure your actual write contention before migrating.
- Inventory date, boolean and mixed-type columns.
- Decide the target collation and test case-sensitive comparisons.
- Recreate indexes and test transaction behavior with concurrent clients.
Test the query, then the whole application
Start with a familiar aggregation. Add representative indexes and realistic row counts. A fast single query does not measure concurrent writes, backups, deployment cost or operational recovery.
SELECT customer_id, COUNT(*) AS order_count
FROM orders
GROUP BY customer_id
ORDER BY order_count DESC;The SQLite Lab workspace runs SQLite only. To compare engines, execute equivalent workloads in their native environments.
Generate a MySQL migration draft and review the unsupported-feature report before testing it.
Further reading: SQLite appropriate uses and MySQL official documentation.