Limits

Feature	Limit
Databases	10 per account ¹
Database size	100 MB ²
Time Travel duration (point-in-time recovery)	30 days (Workers Paid) / 7 days (Free)
Queries per Worker invocation (see subrequest limits)	50 (Bundled) / 1000 (Unbound)
Maximum database backups	24 hours (backups are hourly) (alpha only)
Maximum number of columns per table	100
Maximum string, `BLOB` or table row size	1,000,000 bytes (1MB)
Maximum SQL statement length	100,000 bytes (100KB)
Maximum bound parameters per query	100
Maximum arguments per SQL function	32
Maximum characters (bytes) in a `LIKE` or `GLOB` pattern	50 bytes

¹ Request adjustments to limits that conflict with your project goals by contacting Cloudflare. To make a request, complete the Limit Increase Request Form, or speak to your account team. Note that not all limits can be increased.
² This is an alpha-only limit, and we intend to increase this as D1 moves towards General Availability (GA).