code: @WorkerThread
    public void execute(String sql) {
      if (logging) log("EXECUTE\n  sql: %s", indentSql(sql));
  
      getWritableDatabase().execSQL(sql);
    }
docs: Execute {@code sql} provided it is NOT a {@code SELECT} or any other SQL statement that
  returns data. No data can be returned (such as the number of affected rows). Instead, use
  {@link #insert}, {@link #update}, et al, when possible.
  <p>
  No notifications will be sent to queries if {@code sql} affects the data of a table.
  
  @see SupportSQLiteDatabase#execSQL(String)