[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:675](https://github.com/evoluhq/evolu/blob/037c390af081e9944d616ff298a729515c5c5ab7/packages/common/src/Sqlite.ts#L675)

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

- 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.