diff --git a/core/data/schema/versions/SDGT_1_rollback.sql b/core/data/schema/versions/SDGT_1_rollback.sql
new file mode 100644
index 0000000..307eaf8
--- /dev/null
+++ b/core/data/schema/versions/SDGT_1_rollback.sql
@@ -0,0 +1,49 @@
+SET FOREIGN_KEY_CHECKS=0;
+
+-- Drop UK idac_user_vs_info_uk
+ALTER TABLE idac_user_vs_info
+DROP FOREIGN KEY idac_user_vs_info_ibfk_1,
+DROP INDEX idac_user_vs_info_uk;
+
+-- Drop the new columns added to the original table
+ALTER TABLE idac_user_vs_info
+DROP COLUMN battle_mode,
+DROP COLUMN invalid,
+DROP COLUMN str,
+DROP COLUMN str_now,
+DROP COLUMN lose_now;
+
+-- Add back the old columns to the original table
+ALTER TABLE idac_user_vs_info
+ADD COLUMN group_key VARCHAR(25),
+ADD COLUMN win_flg INT,
+ADD COLUMN style_car_id INT,
+ADD COLUMN course_id INT,
+ADD COLUMN course_day INT,
+ADD COLUMN players_num INT,
+ADD COLUMN winning INT,
+ADD COLUMN advantage_1 INT,
+ADD COLUMN advantage_2 INT,
+ADD COLUMN advantage_3 INT,
+ADD COLUMN advantage_4 INT,
+ADD COLUMN select_course_id INT,
+ADD COLUMN select_course_day INT,
+ADD COLUMN select_course_random INT,
+ADD COLUMN matching_success_sec INT,
+ADD COLUMN boost_flag INT,
+ADD COLUMN vs_history INT;
+
+-- Add back the constraints and indexes to the original table
+ALTER TABLE idac_user_vs_info
+ADD CONSTRAINT idac_user_vs_info_ibfk_1 FOREIGN KEY (user) REFERENCES aime_user(id) ON DELETE CASCADE ON UPDATE CASCADE,
+ADD UNIQUE KEY idac_user_vs_info_uk (user, group_key);
+
+-- Insert data back to the original table from idac_user_vs_course_info
+INSERT INTO idac_user_vs_info (user, group_key, win_flg, style_car_id, course_id, course_day, players_num, winning, advantage_1, advantage_2, advantage_3, advantage_4, select_course_id, select_course_day, select_course_random, matching_success_sec, boost_flag, vs_history, break_count, break_penalty_flag)
+SELECT user, CONCAT(DATE_FORMAT(NOW(), '%Y%m%d%H%i%s'), 'A69E01A8888'), 0, 0, course_id, 0, 0, vs_cnt, 0, 0, 0, 0, 0, 0, 0, 0, 0, vs_win, 0, 0
+FROM idac_user_vs_course_info;
+
+-- Drop the new table idac_user_vs_course_info
+DROP TABLE IF EXISTS idac_user_vs_course_info;
+
+SET FOREIGN_KEY_CHECKS=1;
diff --git a/core/data/schema/versions/SDGT_2_upgrade.sql b/core/data/schema/versions/SDGT_2_upgrade.sql
new file mode 100644
index 0000000..8c4f626
--- /dev/null
+++ b/core/data/schema/versions/SDGT_2_upgrade.sql
@@ -0,0 +1,57 @@
+SET FOREIGN_KEY_CHECKS=0;
+
+-- Create the new table idac_user_vs_course_info
+CREATE TABLE idac_user_vs_course_info (
+    id INT PRIMARY KEY AUTO_INCREMENT,
+    user INT,
+    battle_mode INT,
+    course_id INT,
+    vs_cnt INT,
+    vs_win INT,
+    CONSTRAINT idac_user_vs_course_info_fk FOREIGN KEY (user) REFERENCES aime_user(id) ON DELETE CASCADE ON UPDATE CASCADE,
+    UNIQUE KEY idac_user_vs_course_info_uk (user, battle_mode, course_id)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+-- Insert data from the original table to the new tables
+INSERT INTO idac_user_vs_course_info (user, battle_mode, course_id, vs_cnt, vs_win)
+SELECT user, 1 as battle_mode, course_id, COUNT(winning) as vs_cnt, SUM(win_flg) as vs_win
+FROM idac_user_vs_info
+GROUP BY user, course_id;
+
+-- Drop UK idac_user_vs_info_uk
+ALTER TABLE idac_user_vs_info
+DROP FOREIGN KEY idac_user_vs_info_ibfk_1,
+DROP INDEX idac_user_vs_info_uk;
+
+-- Drop/Add the old columns from the original table
+ALTER TABLE idac_user_vs_info
+DROP COLUMN group_key,
+DROP COLUMN win_flg,
+DROP COLUMN style_car_id,
+DROP COLUMN course_id,
+DROP COLUMN course_day,
+DROP COLUMN players_num,
+DROP COLUMN winning,
+DROP COLUMN advantage_1,
+DROP COLUMN advantage_2,
+DROP COLUMN advantage_3,
+DROP COLUMN advantage_4,
+DROP COLUMN select_course_id,
+DROP COLUMN select_course_day,
+DROP COLUMN select_course_random,
+DROP COLUMN matching_success_sec,
+DROP COLUMN boost_flag,
+DROP COLUMN vs_history,
+
+ADD COLUMN battle_mode TINYINT UNSIGNED DEFAULT 1 NOT NULL AFTER user,
+ADD COLUMN invalid INT DEFAULT 0,
+ADD COLUMN str INT DEFAULT 0,
+ADD COLUMN str_now INT DEFAULT 0,
+ADD COLUMN lose_now INT DEFAULT 0;
+
+-- Add UK idac_user_vs_info_uk
+ALTER TABLE idac_user_vs_info
+ADD CONSTRAINT idac_user_vs_info_ibfk_1 FOREIGN KEY (user) REFERENCES aime_user(id) ON DELETE CASCADE ON UPDATE CASCADE,
+ADD UNIQUE KEY idac_user_vs_info_uk (user, battle_mode);
+
+SET FOREIGN_KEY_CHECKS=1;
\ No newline at end of file
diff --git a/titles/idac/__init__.py b/titles/idac/__init__.py
index 0c632bd..3b8a6ec 100644
--- a/titles/idac/__init__.py
+++ b/titles/idac/__init__.py
@@ -9,4 +9,4 @@ database = IDACData
 reader = IDACReader
 frontend = IDACFrontend
 game_codes = [IDACConstants.GAME_CODE]
-current_schema_version = 1
+current_schema_version = 2