diff --git a/backend/db.sqlite3-journal b/backend/db.sqlite3-journal
new file mode 100644
index 0000000..fd14fa4
Binary files /dev/null and b/backend/db.sqlite3-journal differ
diff --git a/backend/internal/database/sample_data/0010_sample_data.sql b/backend/internal/database/sample_data/0010_sample_data.sql
index 800bd11..092fbb0 100644
--- a/backend/internal/database/sample_data/0010_sample_data.sql
+++ b/backend/internal/database/sample_data/0010_sample_data.sql
@@ -34,17 +34,17 @@ VALUES (3,3,"member");
 INSERT OR IGNORE INTO user_roles(user_id,project_id,p_role)
 VALUES (2,1,"project_manager");
 
-INSERT INTO weekly_reports (user_id, project_id, week, development_time, meeting_time, admin_time, own_work_time, study_time, testing_time, signed_by)
+INSERT OR IGNORE INTO weekly_reports (user_id, project_id, week, development_time, meeting_time, admin_time, own_work_time, study_time, testing_time, signed_by)
 VALUES (2, 1, 12, 20, 10, 5, 30, 15, 10, NULL);
 
-INSERT INTO weekly_reports (user_id, project_id, week, development_time, meeting_time, admin_time, own_work_time, study_time, testing_time, signed_by)
+INSERT OR IGNORE INTO weekly_reports (user_id, project_id, week, development_time, meeting_time, admin_time, own_work_time, study_time, testing_time, signed_by)
 VALUES (3, 1, 12, 20, 10, 5, 30, 15, 10, NULL);
 
-INSERT INTO weekly_reports (user_id, project_id, week, development_time, meeting_time, admin_time, own_work_time, study_time, testing_time, signed_by)
+INSERT OR IGNORE INTO weekly_reports (user_id, project_id, week, development_time, meeting_time, admin_time, own_work_time, study_time, testing_time, signed_by)
 VALUES (3, 1, 14, 20, 10, 5, 30, 15, 10, NULL);
 
-INSERT INTO weekly_reports (user_id, project_id, week, development_time, meeting_time, admin_time, own_work_time, study_time, testing_time, signed_by)
+INSERT OR IGNORE INTO weekly_reports (user_id, project_id, week, development_time, meeting_time, admin_time, own_work_time, study_time, testing_time, signed_by)
 VALUES (3, 2, 12, 20, 10, 5, 30, 15, 10, NULL);
 
-INSERT INTO weekly_reports (user_id, project_id, week, development_time, meeting_time, admin_time, own_work_time, study_time, testing_time, signed_by)
+INSERT OR IGNORE INTO weekly_reports (user_id, project_id, week, development_time, meeting_time, admin_time, own_work_time, study_time, testing_time, signed_by)
 VALUES (3, 3, 12, 20, 10, 5, 30, 15, 10, NULL);