diff --git a/main/install/db_main.sql b/main/install/db_main.sql
index eac0ee781e..f745b2e6f3 100644
--- a/main/install/db_main.sql
+++ b/main/install/db_main.sql
@@ -855,7 +855,7 @@ VALUES
 ('allow_teacher_change_gradebook_grading_model', NULL, 'radio', 'Gradebook', 'false', 'AllowTeacherChangeGradebookGradingModelTitle', 'AllowTeacherChangeGradebookGradingModelComment', NULL, NULL, 1),
 ('grading_model', 'grading_model', 'custom', 'Gradebook', 'false', 'GradingModelTitle', 'GradingModelComment', NULL, NULL, 1),
 ('allow_users_to_change_email_with_no_password', NULL, 'radio', 'User', 'false', 'AllowUsersToChangeEmailWithNoPasswordTitle', 'AllowUsersToChangeEmailWithNoPasswordComment', NULL, NULL, 0),
-('show_admin_toolbar', NULL, 'radio', 'Platform', 'true', 'ShowAdminToolbarTitle', 'ShowAdminToolbarComment', NULL, NULL, 1)
+('show_admin_toolbar', NULL, 'radio', 'Platform', 'true', 'ShowAdminToolbarTitle', 'ShowAdminToolbarComment', NULL, NULL, 1),
 ('chamilo_database_version',NULL,'textfield',NULL, '1.9.0.16368','DokeosDatabaseVersion','', NULL, NULL, 0);
 
 /*
@@ -2818,37 +2818,6 @@ CREATE TABLE skill_rel_profile (
 
 
 
-CREATE TABLE track_course_ranking (
- id   int unsigned not null PRIMARY KEY AUTO_INCREMENT,
- c_id  int unsigned not null,
- session_id  int unsigned not null default 0,
- url_id  int unsigned not null default 0, 
- accesses int unsigned not null default 0,
- votes int unsigned not null default 0,
- users int unsigned not null default 0,
- creation_date datetime not null,
-);
-
-ALTER TABLE track_course_ranking ADD INDEX idx_tcc_cid (c_id);
-ALTER TABLE track_course_ranking ADD INDEX idx_tcc_sid (session_id);
-ALTER TABLE track_course_ranking ADD INDEX idx_tcc_urlid (url_id);
-ALTER TABLE track_course_ranking ADD INDEX idx_tcc_creation_date (creation_date);
-
-CREATE TABLE user_course_vote(
-  id int unsigned not null AUTO_INCREMENT PRIMARY KEY,
-  c_id int unsigned not null,
-  user_id int unsigned not null,  
-  session_id int unsigned not null default 0,
-  url_id int unsigned not null default 0
-);
-
-ALTER TABLE user_course_vote ADD INDEX idx_ucv_cid (c_id);
-ALTER TABLE user_course_vote ADD INDEX idx_ucv_uid (user_id);
-ALTER TABLE user_course_vote ADD INDEX idx_ucv_cuid (user_id, c_id);
-
-
-
-
 
 
 --