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Udemy SQL Interview Kit 2025 100 Challenges and Solutions

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Info Hash: 337690E52379116A8B54365D0BF5C5DD4B895530
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Uploader: freecoursewb
Source: 1 Logo 1337x
Downloads: 7
Type: Tutorials
Language: English
Category: Other
Size: 2.4 GB
Added: Sept. 5, 2025, 7:53 p.m.
Peers: Seeders: 1, Leechers: 20 (Last updated: 7 months, 1 week ago)
Tracker Data:
Tracker Seeders Leechers Completed
udp://open.stealth.si:80/announce 0 1 0
udp://exodus.desync.com:6969/announce (Failed to scrape UDP tracker) 0 0 0
udp://tracker.cyberia.is:6969/announce (Failed to scrape UDP tracker) 0 0 0
udp://tracker.opentrackr.org:1337/announce 1 12 7
udp://tracker.torrent.eu.org:451/announce 0 3 0
udp://explodie.org:6969/announce 0 1 0
udp://tracker.birkenwald.de:6969/announce 0 3 0
udp://tracker.moeking.me:6969/announce (Failed to scrape UDP tracker) 0 0 0
udp://ipv4.tracker.harry.lu:80/announce (Failed to scrape UDP tracker) 0 0 0
udp://tracker.therarbg.to:6969/announce 0 0 0
Files:
  1. Get Bonus Downloads Here.url 180 bytes
  2. 1 -Introduction.mp4 17.5 MB
  3. 2 -How to navigate this course.mp4 24.5 MB
  4. active_admin_users_hint.txt 113 bytes
  5. active_admin_users_solution.txt 342 bytes
  6. spend_per_customer_hint.txt 86 bytes
  7. spend_per_customer_solution.txt 187 bytes
  8. payment_method_breakdown_hint.txt 73 bytes
  9. payment_method_breakdown_solution.txt 395 bytes
  10. viewers_and_plans_hint.txt 75 bytes
  11. viewers_and_plans_solution.txt 391 bytes
  12. users_without_logins_hint.txt 116 bytes
  13. users_without_logins_solution.txt 390 bytes
  14. top_3_articles_hint.txt 218 bytes
  15. top_3_articles_solution.txt 967 bytes
  16. gym_activation_hint.txt 181 bytes
  17. gym_activation_solution.txt 718 bytes
  18. all_creators_moderators_hint.txt 133 bytes
  19. all_creators_moderators_solution.txt 301 bytes
  20. daily_ticket_status_hint.txt 135 bytes
  21. daily_ticket_status_solution.txt 440 bytes
  22. split_full_name_hint.txt 232 bytes
  23. split_full_name_solution.txt 343 bytes
  24. clean_emails_hint.txt 124 bytes
  25. clean_emails_solution.txt 157 bytes
  26. items_ordered_by_user_hint.txt 118 bytes
  27. items_ordered_by_user_solution.txt 218 bytes
  28. clean_phone_numbers_hint.txt 152 bytes
  29. clean_phone_numbers_solution.txt 231 bytes
  30. replace_symbols_in_feedback_hint.txt 154 bytes
  31. replace_symbols_in_feedback_solution.txt 420 bytes
  32. extract_email_username_hint.txt 126 bytes
  33. extract_email_username_solution.txt 215 bytes
  34. comment_wordcount_hint.txt 267 bytes
  35. comment_wordcount_solution.txt 965 bytes
  36. palindromic_tags_hint.txt 154 bytes
  37. palindromic_tags_solution.txt 351 bytes
  38. continuous_login_ranges_hint.txt 305 bytes
  39. continuous_login_ranges_solution.txt 467 bytes
  40. customers_all_categories_hint.txt 298 bytes
  41. customers_all_categories_solution.txt 410 bytes
  42. priority_candidates_hint.txt 241 bytes
  43. priority_candidates_solution.txt 324 bytes
  44. users_top_transactions_last_month_hint.txt 259 bytes
  45. users_top_transactions_last_month_solution.txt 662 bytes
  46. multi_city_login_hint.txt 137 bytes
  47. multi_city_login_solution.txt 426 bytes
  48. delivery_time_by_day_grocery_hint.txt 237 bytes
  49. delivery_time_by_day_grocery_solution.txt 478 bytes
  50. cart_abandoners_hint.txt 306 bytes
  51. cart_abandoners_solution.txt 918 bytes
  52. top_spenders_fashion_hint.txt 197 bytes
  53. top_spenders_fashion_solution.txt 374 bytes
  54. multiple_diagnoses_hint.txt 97 bytes
  55. multiple_diagnoses_solution.txt 425 bytes
  56. first_day_only_streaming_users_hint.txt 184 bytes
  57. first_day_only_streaming_users_solution.txt 678 bytes
  58. avg_shipping_delay_hint.txt 172 bytes
  59. avg_shipping_delay_solution.txt 436 bytes
  60. avg_booking_delay_by_specialty_hint.txt 198 bytes
  61. avg_booking_delay_by_specialty_solution.txt 576 bytes
  62. conversion_rate_campaign_hint.txt 174 bytes
  63. conversion_rate_campaign_solution.txt 701 bytes
  64. new_vs_repeat_visitors_hint.txt 195 bytes
  65. new_vs_repeat_visitors_solution.txt 442 bytes
  66. repeat_buyers_beautystore_hint.txt 217 bytes
  67. repeat_buyers_beautystore_solution.txt 767 bytes
  68. most_active_hour_per_app_hint.txt 176 bytes
  69. most_active_hour_per_app_solution.txt 903 bytes
  70. customer_names_on_orders_hint.txt 85 bytes
  71. customer_names_on_orders_solution.txt 280 bytes
  72. fare_by_time_hint.txt 218 bytes
  73. fare_by_time_solution.txt 875 bytes
  74. grand_slam_counts_hint.txt 137 bytes
  75. grand_slam_counts_solution.txt 405 bytes
  76. unbooked_room_types_hint.txt 233 bytes
  77. unbooked_room_types_solution.txt 590 bytes
  78. latest_valid_sale_leaderboard_hint.txt 276 bytes
  79. latest_valid_sale_leaderboard_solution.txt 1.4 KB
  80. best_movie_discounts_hint.txt 230 bytes
  81. best_movie_discounts_solution.txt 940 bytes
  82. first_overlapping_subscriptions_hint.txt 268 bytes
  83. first_overlapping_subscriptions_solution.txt 881 bytes
  84. rolling_avg_museum_hint.txt 231 bytes
  85. rolling_avg_museum_solution.txt 1.1 KB
  86. posting_streaks_hint.txt 320 bytes
  87. posting_streaks_solution.txt 2.7 KB
  88. salary_raise_tracker_hint.txt 240 bytes
  89. salary_raise_tracker_solution.txt 1.0 KB
  90. user_watch_gaps_hint.txt 162 bytes
  91. user_watch_gaps_solution.txt 979 bytes
  92. latest_login_per_user_hint.txt 164 bytes
  93. latest_login_per_user_solution.txt 407 bytes
  94. second_txn_hint.txt 127 bytes
  95. second_txn_solution.txt 1.1 KB
  96. top_items_by_section_hint.txt 97 bytes
  97. top_items_by_section_solution.txt 531 bytes
  98. top2_products_city_hint.txt 202 bytes
  99. top2_products_city_solution.txt 790 bytes
  100. salary_quartile_hint.txt 123 bytes
  101. salary_quartile_solution.txt 250 bytes
  102. running_total_electromax_hint.txt 126 bytes
  103. running_total_electromax_solution.txt 343 bytes
  104. salary_diff_hint.txt 178 bytes
  105. salary_diff_solution.txt 416 bytes
  106. time_to_next_login_hint.txt 149 bytes
  107. time_to_next_login_solution.txt 377 bytes
  108. movie_mismatch_hint.txt 287 bytes
  109. movie_mismatch_solution.txt 678 bytes
  110. users_registered_this_month_hint.txt 132 bytes
  111. users_registered_this_month_solution.txt 170 bytes
  112. admissions_by_month_hint.txt 188 bytes
  113. admissions_by_month_solution.txt 392 bytes
  114. weekend_vs_weekday_hint.txt 209 bytes
  115. weekend_vs_weekday_solution.txt 435 bytes
  116. second_book_purchase_hint.txt 156 bytes
  117. second_book_purchase_solution.txt 879 bytes
  118. signup_to_first_enrollment_hint.txt 192 bytes
  119. signup_to_first_enrollment_solution.txt 465 bytes
  120. metro_footfall_hint.txt 396 bytes
  121. metro_footfall_solution.txt 780 bytes
  122. visit_gaps_hint.txt 150 bytes
  123. visit_gaps_solution.txt 736 bytes
  124. support_delay_hint.txt 121 bytes
  125. support_delay_solution.txt 344 bytes
  126. shortlisted_candidates_hint.txt 278 bytes
  127. shortlisted_candidates_solution.txt 767 bytes
  128. buyer_segments_hint.txt 373 bytes
  129. buyer_segments_solution.txt 1.2 KB
  130. top_product_by_sales_hint.txt 189 bytes
  131. top_product_by_sales_solution.txt 454 bytes
  132. most_recent_appointments_hint.txt 0 bytes
  133. most_recent_appointments_solution.txt 0 bytes
  134. deal_hunter_customers_hint.txt 156 bytes
  135. deal_hunter_customers_solution.txt 1.5 KB
  136. customer_return_rate_hint.txt 194 bytes
  137. customer_return_rate_solution.txt 822 bytes
  138. influencer_earnings_hint.txt 143 bytes
  139. influencer_earnings_solution.txt 326 bytes
  140. manual_recovery_hint.txt 203 bytes
  141. manual_recovery_solution.txt 359 bytes
  142. leads_converted_fast_hint.txt 381 bytes
  143. leads_converted_fast_solution.txt 921 bytes
  144. salary_disparity_hint.txt 235 bytes
  145. salary_disparity_solution.txt 640 bytes
  146. frequent_ride_cancellers_hint.txt 368 bytes
  147. frequent_ride_cancellers_solution.txt 773 bytes
  148. lowest_rated_price_by_category_hint.txt 210 bytes
  149. lowest_rated_price_by_category_solution.txt 539 bytes
  150. top_10_percent_sellers_avg_hint.txt 155 bytes
  151. top_10_percent_sellers_avg_solution.txt 273 bytes
  152. group_concat_tags_hint.txt 99 bytes
  153. group_concat_tags_solution.txt 147 bytes
  154. shared_orders_with_join_hint.txt 231 bytes
  155. shared_orders_with_join_solution.txt 518 bytes
  156. blood_sugar_drift_hint.txt 572 bytes
  157. blood_sugar_drift_solution.txt 1.2 KB
  158. gender_case_distribution_hint.txt 165 bytes
  159. gender_case_distribution_solution.txt 559 bytes
  160. null_email_percent_by_domain_hint.txt 103 bytes
  161. null_email_percent_by_domain_solution.txt 1020 bytes
  162. cancelled_percent_by_category_hint.txt 174 bytes
  163. cancelled_percent_by_category_solution.txt 768 bytes
  164. return_rate_by_brand_hint.txt 219 bytes
  165. return_rate_by_brand_solution.txt 516 bytes
  166. low_mileage_outliers_hint.txt 225 bytes
  167. low_mileage_outliers_solution.txt 504 bytes
  168. late_shipment_pct_by_courier_hint.txt 175 bytes
  169. late_shipment_pct_by_courier_solution.txt 306 bytes
  170. ticket_resolution_ratio_hint.txt 159 bytes
  171. ticket_resolution_ratio_solution.txt 481 bytes
  172. most_used_coupon_code_hint.txt 144 bytes
  173. most_used_coupon_code_solution.txt 436 bytes
  174. frequent_actor_pairs_hint.txt 304 bytes
  175. frequent_actor_pairs_solution.txt 664 bytes
  176. top_manager_hint.txt 220 bytes
  177. top_manager_solution.txt 628 bytes
  178. management_tree_hint.txt 176 bytes
  179. management_tree_solution.txt 568 bytes
  180. leaf_employees_hint.txt 133 bytes
  181. leaf_employees_solution.txt 276 bytes
  182. employee_depth_hint.txt 182 bytes
  183. employee_depth_solution.txt 661 bytes
  184. org_chart_rollup_hint.txt 207 bytes
  185. org_chart_rollup_solution.txt 697 bytes
  186. buyers_or_sellers_hint.txt 150 bytes
  187. buyers_or_sellers_solution.txt 313 bytes
  188. freelancers_with_dual_roles_hint.txt 275 bytes
  189. freelancers_with_dual_roles_solution.txt 947 bytes
  190. risky_trade_users_hint.txt 278 bytes
  191. risky_trade_users_solution.txt 1.1 KB
  192. cross_platform_travelers_hint.txt 192 bytes
  193. cross_platform_travelers_solution.txt 1.1 KB
  194. bundle_only_buyers_hint.txt 202 bytes
  195. bundle_only_buyers_solution.txt 1.2 KB
  196. job_seekers_incomplete_action_hint.txt 272 bytes
  197. job_seekers_incomplete_action_solution.txt 930 bytes
  198. orders_status_pivot_hint.txt 94 bytes
  199. orders_status_pivot_solution.txt 379 bytes
  200. monthly_attendance_unpivot_hint.txt 148 bytes
  201. monthly_attendance_unpivot_solution.txt 375 bytes
  202. streams_by_weekday_genre_hint.txt 164 bytes
  203. streams_by_weekday_genre_solution.txt 588 bytes
  204. 1 - Bundle-Only Buyers - Medium-Hard.html 2.6 KB
  205. 1 - Buyers or Sellers- Easy.html 3.0 KB
  206. 1 - Cross-Platform Travelers - Hard.html 3.3 KB
  207. 1 - Freelancers with Dual Roles - Medium.html 3.0 KB
  208. 1 - Job Seekers Incomplete Action - Hard.html 2.6 KB
  209. 1 - Risky Trades - Medium.html 3.3 KB
  210. 1 - Count Orders by Status (Pivot) – Medium.html 2.0 KB
  211. 1 - Monthly Attendance Unpivot – Medium.html 2.3 KB
  212. 1 - Streams by day and Genre – Medium.html 3.1 KB
  213. 1 - Extract Email Username - Medium.html 2.0 KB
  214. 1 - Find Palindrome Strings - Medium.html 1.9 KB
  215. 1 - Items Ordered per User - Easy.html 2.2 KB
  216. 1 - Normalize Phone Numbers - Medium.html 1.9 KB
  217. 1 - Replace Symbols in Feedback - Medium.html 2.6 KB
  218. 1 - Split Customer Name - Easy.html 2.1 KB
  219. 1 - Trim & Normalize Emails - Easy.html 1.8 KB
  220. 1 - Word Count in Comments - Medium.html 2.3 KB
  221. 1 - Customers Who Bought from All Categories.html 2.3 KB
  222. 1 - Start and End of Continuous Range.html 2.2 KB
  223. 1 -Thank you & Best Wishes.mp4 18.9 MB
  224. 1 - Active Admin Users - Easy.html 2.4 KB
  225. 1 -Solution Walkthrough.mp4 19.8 MB
  226. 2 - Spend per Customer – Easy.html 2.0 KB
  227. 2 -Solution Walkthrough.mp4 18.2 MB
  228. 3 - Payment Method Breakdown – Easy.html 2.6 KB
  229. 3 - Viewers and Plans – Easy.html 3.0 KB
  230. 3 -Solution Walkthrough.mp4 24.6 MB
  231. 4 - Users Who Never Logged In – Easy.html 2.7 KB
  232. 4 -Solution Walkthrough.mp4 41.4 MB
  233. 5 - Top 3 Articles per User – Medium.html 3.6 KB
  234. 5 -Solution Walkthrough.mp4 57.4 MB
  235. 6 - New vs Delayed Gym Members– Medium.html 3.6 KB
  236. 6 -Solution Walkthrough.mp4 103.1 MB
  237. 7 - All Creators and Moderators – Easy.html 2.5 KB
  238. 7 -Solution Walkthrough.mp4 30.6 MB
  239. 8 - IT Ticket Status Count – Medium.html 2.4 KB
  240. 8 -Solution Walkthrough.mp4 43.8 MB
  241. 1 - Candidates for Upskilling Campaign - Easy.html 3.0 KB
  242. 1 -Solution Walkthrough.mp4 43.8 MB
  243. 10 - Cart Abandoners - Medium.html 2.9 KB
  244. 10 -Solution Walkthrough.mp4 66.2 MB
  245. 11 - Top Spenders - Easy.html 2.2 KB
  246. 2 - First-day Signups Users Never Returning - Medium.html 3.0 KB
  247. 2 - Multiple Diagnoses per Visit– Easy.html 1.8 KB
  248. 2 -Solution Walkthrough.mp4 74.9 MB
  249. 3 - Avg Shipping Delay - Medium.html 3.0 KB
  250. 3 -Solution Walkthrough.mp4 42.6 MB
  251. 4 - Booking to Visit Delay - Medium.html 3.0 KB
  252. 4 - Campaign Conversion Rate - Medium.html 2.3 KB
  253. 4 -Solution Walkthrough.mp4 54.3 MB
  254. 5 - New vs Repeat Visitors - Medium.html 2.7 KB
  255. 5 -Solution Walkthrough.mp4 53.6 MB
  256. 6 - Most Active Hour per App - Medium.html 2.3 KB
  257. 6 - Repeat Buyers by Product - Medium.html 2.5 KB
  258. 6 -Solution Walkthrough.mp4 69.0 MB
  259. 7 - Users With Most Transactions - Medium.html 2.1 KB
  260. 7 -Solution Walkthrough.mp4 56.3 MB
  261. 8 - Multi-City Logins - Easy.html 2.4 KB
  262. 8 -Solution Walkthrough.mp4 31.6 MB
  263. 9 - Delivery Time by Day - Medium.html 2.2 KB
  264. 9 -Solution Walkthrough.mp4 51.7 MB
  265. 1 - Customer Names on Orders – Easy.html 2.4 KB
  266. 1 - Fare by Time– Medium.html 3.3 KB
  267. 1 -Solution Walkthrough.mp4 96.7 MB
  268. 2 - Grand Slam Counts (incl zero) – Easy.html 3.0 KB
  269. 2 - Unbooked Room Types – Medium.html 3.1 KB
  270. 2 -Solution Walkthrough.mp4 54.6 MB
  271. 3 - Latest Valid Sale Per team – Medium.html 3.7 KB
  272. 3 -Solution Walkthrough.mp4 104.4 MB
  273. 4 - Best Movie Discounts - Medium.html 2.2 KB
  274. 4 -Solution Walkthrough.mp4 86.0 MB
  275. 5 - First Overlapping Plans - Hard.html 2.4 KB
  276. 5 -Solution Walkthrough.mp4 83.3 MB
  277. 1 - 2nd Transaction Date per Customer – Medium.html 2.1 KB
  278. 1 - Latest Login per User – Easy.html 1.8 KB
  279. 1 - Top Items by Section – Medium.html 2.8 KB
  280. 1 -Solution Walkthrough.mp4 31.9 MB
  281. 2 - Salary Quartile Buckets - Medium.html 2.8 KB
  282. 2 - Top 2 Products per City - Medium.html 2.9 KB
  283. 2 -Solution Walkthrough.mp4 29.9 MB
  284. 3 - Running Total of Sales(Cumulative) per Region - Medium.html 2.6 KB
  285. 3 -Solution Walkthrough.mp4 27.5 MB
  286. 4 - Salary Difference Relative – Medium.html 2.6 KB
  287. 4 -Solution Walkthrough.mp4 46.7 MB
  288. 5 - Time to Next Login - Medium.html 2.4 KB
  289. 5 -Solution Walkthrough.mp4 35.3 MB
  290. 6 - Mismatched Movie Rentals - Medium.html 2.9 KB
  291. 6 -Solution Walkthrough.mp4 52.7 MB
  292. 7 - 7-Day Rolling Avg Visitors – Hard.html 2.7 KB
  293. 7 -Solution Walkthrough.mp4 52.7 MB
  294. 8 - Posting Streaks – Medium-Hard.html 2.7 KB
  295. 8 -Solution Walkthrough.mp4 73.0 MB
  296. 9 - Salary Raise Tracker - Hard.html 3.3 KB
  297. 9 - User Watch Gaps & Streaming Behavior - Medium–Hard.html 3.5 KB
  298. 9 -Solution Walkthrough.mp4 61.4 MB
  299. 1 - Users Registered This Month – Easy.html 1.7 KB
  300. 1 -Solution Walkthrough.mp4 27.9 MB
  301. 2 - Kids by Admission Month – Easy.html 2.0 KB
  302. 2 -Solution Walkthrough.mp4 22.2 MB
  303. 3 - Weekend Vs Weekday Signups – Easy.html 2.6 KB
  304. 4 - Second Book Purchase Timeline – Medium.html 2.0 KB
  305. 4 -Solution Walkthrough.mp4 55.2 MB
  306. 5 - Doctor Visit Gaps (180d) – Medium.html 2.2 KB
  307. 5 - Time from Signup to Enrollment – Medium.html 3.5 KB
  308. 5 - Week-over-Week Metro App Footfall – Medium.html 2.7 KB
  309. 5 -Solution Walkthrough.mp4 40.0 MB
  310. 6 - Support Response 24 hrs – Easy.html 2.9 KB
  311. 6 -Solution Walkthrough.mp4 31.4 MB
  312. 1 - Most Recent Doctor's Appointment – Easy.html 2.4 KB
  313. 1 - Top Product by Sales – Easy.html 1.9 KB
  314. 1 -Solution Walkthrough.mp4 23.3 MB
  315. 10 - Recency, Frequency, Monetary(Buyer Segment)- Medium-Hard.html 3.9 KB
  316. 10 -Solution Walkthrough.mp4 111.7 MB
  317. 2 - Deal Hunter Customers - Medium.html 2.7 KB
  318. 2 -Solution Walkthrough.mp4 49.2 MB
  319. 3 - Customer Return Rate – Medium.html 2.2 KB
  320. 3 -Solution Walkthrough.mp4 54.1 MB
  321. 4 - Influencer earnings ≥ $1000 – Easy.html 2.7 KB
  322. 4 -Solution Walkthrough.mp4 33.8 MB
  323. 5 - Manual Recovery – Medium.html 2.6 KB
  324. 5 -Solution Walkthrough.mp4 44.5 MB
  325. 6 - Leads Converted Fast– Medium.html 2.9 KB
  326. 6 -Solution Walkthrough.mp4 54.8 MB
  327. 7 - Salary Disparity in Grade – Medium-Hard.html 2.4 KB
  328. 7 -Solution Walkthrough.mp4 47.1 MB
  329. 8 - Frequent Ride Cancellers - Medium-Hard.html 3.4 KB
  330. 8 -Solution Walkthrough.mp4 60.7 MB
  331. 9 - Consistently Shortlisted Candidates - Medium-Hard.html 4.1 KB
  332. 9 -Solution Walkthrough.mp4 56.3 MB
  333. 1 - Blood Sugar Drift & Risk Outlook – Medium.html 3.6 KB
  334. 1 - Cancelled% by Category – Easy.html 3.4 KB
  335. 1 - Gender Counts by CASE – Easy.html 2.4 KB
  336. 1 - Late Shipment % by Courier – Medium.html 2.1 KB
  337. 1 - Low Mileage Cars – Medium.html 3.0 KB
  338. 1 - Lowest Rated Price by Category – Medium.html 2.6 KB
  339. 1 - Most Frequent Actor Pair - Medium-Hard.html 2.8 KB
  340. 1 - Most Used Coupon Code – Easy.html 2.0 KB
  341. 1 - NULL Email % per Domain – Easy.html 2.8 KB
  342. 1 - Raised vs Resolved Ticket Ratio – Medium.html 1.7 KB
  343. 1 - Return Rate by Apparel Brand – Medium.html 2.8 KB
  344. 1 - Shared Orders - Medium-Hard.html 2.6 KB
  345. 1 - Top 10% Sellers Avg Order – Medium.html 1.9 KB
  346. 1 - Top Tags per Product - Medium.html 1.8 KB
  347. 1 - Employee Hierarchy Depth - Medium-Hard.html 1.8 KB
  348. 1 - Leaf Employees (No Reportees) - Easy.html 1.5 KB
  349. 1 - Management Reporting Tree – Medium.html 2.2 KB
  350. 1 - Org‑Chart Salary Roll‑up – Extreme.html 2.5 KB
  351. 1 - Top Manager for Each Employee – Medium.html 2.9 KB
  352. Bonus Resources.txt 70 bytes

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