delete method
Implementation
Future delete(
{required String table, required Map<String, Object?> keyValues}) async {
String action =
keyValues.entries.where((element) => element.value != null).map((e) {
if (e.value is num) {
return "${e.key}=${e.value}";
} else {
return '${e.key}="${e.value}"';
}
}).join(" and ");
return rawDelete('delete $table where $action');
}