diff --git a/db/1.0.0/2. createAccount.sql b/db/1.0.0/2. createAccount.sql
index 2ca3e93..e753277 100644
--- a/db/1.0.0/2. createAccount.sql	
+++ b/db/1.0.0/2. createAccount.sql	
@@ -13,4 +13,6 @@ CREATE TABLE IF NOT EXISTS raid_builder.account(
 	account_status raid_builder.account_status NOT NULL
 );
 
+CREATE INDEX idx_account_username ON raid_builder.account(username);
+
 GRANT ALL ON TABLE raid_builder.account TO raid_builder;
diff --git a/db/1.0.0/3. createAccountPermission.sql b/db/1.0.0/3. createAccountPermission.sql
index ef6860a..8a1a2a7 100644
--- a/db/1.0.0/3. createAccountPermission.sql	
+++ b/db/1.0.0/3. createAccountPermission.sql	
@@ -7,4 +7,6 @@ CREATE TABLE IF NOT EXISTS raid_builder.account_permission(
 	account_permission_type raid_builder.account_permission_type NOT NULL
 );
 
+CREATE INDEX idx_account_permission_account_id ON raid_builder.account_permission(account_id);
+
 GRANT ALL ON TABLE raid_builder.account_permission TO raid_builder;
diff --git a/db/1.0.0/4. createAccountTutorialStatus.sql b/db/1.0.0/4. createAccountTutorialStatus.sql
index 86cc0a4..7800744 100644
--- a/db/1.0.0/4. createAccountTutorialStatus.sql	
+++ b/db/1.0.0/4. createAccountTutorialStatus.sql	
@@ -11,4 +11,6 @@ CREATE TABLE IF NOT EXISTS raid_builder.account_tutorial_status (
 	instance_tutorial_status raid_builder.tutorial_status NOT NULL
 );
 
+CREATE INDEX idx_account_tutorial_status_account_id ON raid_builder.account_tutorial_status (account_id);
+
 GRANT ALL ON TABLE raid_builder.account_tutorial_status TO raid_builder;
diff --git a/db/1.0.0/5. createGame.sql b/db/1.0.0/5. createGame.sql
index 5a5c55c..55b9988 100644
--- a/db/1.0.0/5. createGame.sql	
+++ b/db/1.0.0/5. createGame.sql	
@@ -10,4 +10,6 @@ CREATE TABLE IF NOT EXISTS raid_builder.game(
 	created_date timestamptz NOT NULL
 );
 
+CREATE INDEX idx_game_game_name ON raid_builder.game(game_name);
+
 GRANT ALL ON TABLE raid_builder.game TO raid_builder;
diff --git a/db/1.0.0/6. createGamePermission.sql b/db/1.0.0/6. createGamePermission.sql
index 8b203eb..136a01d 100644
--- a/db/1.0.0/6. createGamePermission.sql	
+++ b/db/1.0.0/6. createGamePermission.sql	
@@ -14,4 +14,7 @@ CREATE TABLE IF NOT EXISTS raid_builder.game_permission(
 	created_date timestamptz NOT NULL
 );
 
+CREATE INDEX idx_game_permission_account_id ON raid_builder.game_permission(account_id);
+CREATE INDEX idx_game_permission_game_id ON raid_builder.game_permission(game_id);
+
 GRANT ALL ON TABLE raid_builder.game_permission TO raid_builder;
diff --git a/db/1.0.0/7. createRaidGroup.sql b/db/1.0.0/7. createRaidGroup.sql
index 2ab64ad..81760b1 100644
--- a/db/1.0.0/7. createRaidGroup.sql	
+++ b/db/1.0.0/7. createRaidGroup.sql	
@@ -11,4 +11,7 @@ CREATE TABLE IF NOT EXISTS raid_builder.raid_group(
 	created_date timestamptz NOT NULL
 );
 
+CREATE INDEX idx_raid_group_game_id ON raid_builder.raid_group(game_id);
+CREATE INDEX idx_raid_group_raid_group_name ON raid_builder.raid_group(raid_group_name);
+
 GRANT ALL ON TABLE raid_builder.raid_group TO raid_builder;
diff --git a/db/1.0.0/8. createRaidGroupPermission.sql b/db/1.0.0/8. createRaidGroupPermission.sql
index c5e1b8d..52aecf2 100644
--- a/db/1.0.0/8. createRaidGroupPermission.sql	
+++ b/db/1.0.0/8. createRaidGroupPermission.sql	
@@ -14,4 +14,7 @@ CREATE TABLE IF NOT EXISTS raid_builder.raid_group_permission(
 	created_date timestamptz NOT NULL
 );
 
+CREATE INDEX idx_raid_group_permission_account_id ON raid_builder.raid_group_permission(account_id);
+CREATE INDEX idx_raid_group_permission_raid_group_id ON raid_builder.raid_group_permission(raid_group_id);
+
 GRANT ALL ON TABLE raid_builder.raid_group_permission TO raid_builder;