[API reference](https://evolu.dev/docs/api-reference) › [@evolu/common](https://evolu.dev/docs/api-reference/common) › [Sqlite](https://evolu.dev/docs/api-reference/common/Sqlite) › SqliteBoolean

```ts
type SqliteBoolean = 0 | 1;
```

Defined in: [packages/common/src/Sqlite.ts:639](https://github.com/evoluhq/evolu/blob/e7144e2bbe9069362b62dec1b64a8aa922b8f1b0/packages/common/src/Sqlite.ts#L639)

SQLite represents boolean values using `0` (false) and `1` (true) instead of
a dedicated boolean type.

See: https://www.sqlite.org/quirks.html#no_separate_boolean_datatype

## Tips

- Use [sqliteTrue](https://evolu.dev/docs/api-reference/common/Sqlite/variables/sqliteTrue) and [sqliteFalse](https://evolu.dev/docs/api-reference/common/Sqlite/variables/sqliteFalse) constants for better
  readability.
- Use [booleanToSqliteBoolean](https://evolu.dev/docs/api-reference/common/Sqlite/functions/booleanToSqliteBoolean) and [sqliteBooleanToBoolean](https://evolu.dev/docs/api-reference/common/Sqlite/functions/sqliteBooleanToBoolean) for
  converting between JavaScript booleans and SQLite boolean values.