Function toProvider

toProvider(binding: unknown, options?: ToProviderOptions): SQLDatabase | null
Detects the right CollegeDB shard provider for an arbitrary binding.

This removes the per-app "is this a D1 binding, a Drizzle client, or a raw SQLite client?" wiring that every consumer otherwise rewrites. Resolution order:
1. A raw Drizzle client (run/all/get/execute) is wrapped with createDrizzleSQLProvider when options.sql is supplied.
2. A value already implementing the SQLDatabase contract (a D1 binding, or a provider from any create*Provider) is returned as-is.
3. A client exposing prepare(sql) is wrapped with createSQLiteProvider.
4. Anything else returns null (unrecognized).
Parameters
- binding: unknown
  Candidate database binding
- options: ToProviderOptions = {}
  Resolution options (Drizzle sql tag)
Returns SQLDatabase | null
A shard provider, or null when the binding is not recognized
Since
1.2.4
Example
```
import { sql } from 'drizzle-orm';
const provider = toProvider(env.DB_EAST, { sql });
if (!provider) throw new Error('Unrecognized database binding');
```
- Defined in src/providers.ts:579