Improved tags

src/main/java/g3701_3800/s3764_most_common_course_pairs/script.sql

@@ -1,5 +1,5 @@
 # Write your MySQL query statement below
-# #Hard #2026_05_08_Time_262_ms_(63.61%)_Space_0.0_MB_(100.00%)
+# #Hard #Database #2026_05_08_Time_262_ms_(63.61%)_Space_0.0_MB_(100.00%)
 -- Find the most common course-to-next-course transitions
 -- among engaged users (>=5 courses, avg rating >= 4)
 SELECT

src/main/java/g3701_3800/s3793_find_users_with_high_token_usage/script.sql

@@ -1,5 +1,5 @@
 # Write your MySQL query statement below
-# #Easy #2026_05_22_Time_286_ms_(70.33%)_Space_0.0_MB_(100.00%)
+# #Easy #Database #2026_05_22_Time_286_ms_(70.33%)_Space_0.0_MB_(100.00%)
 SELECT user_id, COUNT(prompt) as prompt_count, ROUND(AVG(tokens),2) as avg_tokens
 FROM prompts
 GROUP BY user_id

src/main/java/g3801_3900/s3808_find_emotionally_consistent_users/script.sql

@@ -1,5 +1,5 @@
 # Write your MySQL query statement below
-# #Medium #2026_06_09_Time_290_ms_(87.69%)_Space_0.0_MB_(100.00%)
+# #Medium #Database #2026_06_09_Time_290_ms_(87.69%)_Space_0.0_MB_(100.00%)
 WITH user_selection AS
 (SELECT
     user_id,

src/main/java/g3801_3900/s3832_find_users_with_persistent_behavior_patterns/script.sql

@@ -1,5 +1,5 @@
 # Write your MySQL query statement below
-# #Hard #2026_07_21_Time_367_ms_(16.77%)_Space_0.0_MB_(100.00%)
+# #Hard #Database #2026_07_21_Time_367_ms_(16.77%)_Space_0.0_MB_(100.00%)
 WITH distinct_activity AS (
     SELECT DISTINCT
         user_id,