Why this video is 7.5 hours long? Because Im solving ALL of the SQL Problems on Hackerrank in this video. This is the only video you will need to improve your Coding Skills in SQL.
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Do you want to understand how to solve SQL Problems in every detail? That's what my channel is about. When I was younger I thought I could never program because it looked way too difficult. The truth is that it takes time but with some patience anybody can do it! Follow me along and get better!
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Timestamps:

00:00:00 Intro
00:00:29 Revising the Select Query I (Easy)
00:02:00 Revising the Select Query II (Easy)
00:02:57 Select All (Easy)
00:03:14 Select By ID (Easy)
00:03:37 Japanese Cities' Attributes (Easy)
00:04:08 Japanese Cities' Names (Easy)
00:04:40 Weather Observation Station 1 (Easy)
00:05:05 Weather Observation Station 3 (Easy)
00:07:15 Weather Observation Station 4 (Easy)
00:08:03 Weather Observation Station 6 (Easy)
00:08:53 Weather Observation Station 7 (Easy)
00:09:59 Weather Observation Station 8 (Easy)
00:12:24 Weather Observation Station 9 (Easy)
00:13:32 Weather Observation Station 10 (Easy)
00:14:41 Weather Observation Station 11 (Easy)
00:16:46 Weather Observation Station 12 (Easy)
00:19:14 Higher Than 75 Marks (Easy)
00:21:20 Employee Names (Easy)
00:21:55 Employee Salaries (Easy)
00:23:01 Type of Triangle (Easy)
00:31:29 The PADS (Medium)
00:40:56 Revising Aggregations - The Count Function (Easy)
00:41:42 Revising Aggregations - The Sum Function (Easy)
00:43:29 Revising Aggregations - Averages (Easy)
00:44:02 Average Population (Easy)
00:44:52 Japan Population (Easy)
00:45:18 Population Density Difference (Easy)
00:45:52 Top Earners (Easy)
00:50:01 Weather Observation Station 2 (Easy)
00:53:01 Weather Observation Station 13 (Easy)
00:54:50 Weather Observation Station 14 (Easy)
00:56:06 Weather Observation Station 15 (Easy)
01:02:18 Weather Observation Station 16 (Easy)
01:03:27 Weather Observation Station 17 (Easy)
01:07:16 Weather Observation Station 18 (Easy)
01:12:31 Weather Observation Station 19 (Easy)
01:20:50 Population Census (Easy)
01:23:26 African Cities (Easy)
01:24:27 Average Population of Each Continent (Easy)
01:26:48 The Blunder (Easy)
01:34:06 Weather Observation Station 5 (Easy)
01:41:04 Draw The Triangle 1 (Easy)
01:47:38 Draw The Triangle 2 (Easy)
01:49:19 The PADS (Medium)
02:01:22 Binary Tree Nodes (Medium)
02:24:39 New Companies (Medium)
02:44:00 Weather Observation Station 20 (Medium)
02:53:10 The Report (Medium)
03:07:44 Top Competitors (Medium)
03:27:03 Ollivander's Inventory (Medium)
03:48:14 Challenges (Medium)
04:05:32 Contest Leaderboard (Medium)
04:22:56 SQL Project Planning (Medium)
04:44:49 Placements (Medium)
05:11:08 Symmetric Pairs (Medium)
05:27:39 Print Prime Numbers (Medium)
05:47:21 Interviews (Hard)
06:39:06 15 Days of Learning SQL (Hard)

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