docs: private void createTables() {
          this.db.execSQL(DbConstants.DROP_METADATA_STATEMENT);
          this.db.execSQL(DbConstants.DROP_INDEX_STATEMENT);
          this.db.execSQL(DbConstants.DROP_CATEGORY_MAP_STATEMENT);
          this.db.execSQL(DbConstants.DROP_DATA_STATEMENT);
          this.db.execSQL(DbConstants.DROP_CATEGORIES_STATEMENT);
  
          this.db.execSQL(DbConstants.CREATE_CATEGORIES_STATEMENT);
          this.db.execSQL(DbConstants.CREATE_DATA_STATEMENT);
          this.db.execSQL(DbConstants.CREATE_CATEGORY_MAP_STATEMENT);
          this.db.execSQL(DbConstants.CREATE_INDEX_STATEMENT);
          this.db.execSQL(DbConstants.CREATE_METADATA_STATEMENT);
      }