111. Databricks | Pyspark| SQL Coding Interview: Exchange Seats of Students
Azure Databricks Learning: Coding Interview Exercise: Pyspark and Spark SQL
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Coding exercises are very common in most of the Bigdata interviews. It is important to develop coding skills before appearing for Spark/Databricks interviews.
In this video, I have explained a coding scenario to exchange the seats of students in a class. This is Leet Code SQL Exercise number 626. This is also one of the FAANG company question Google, Microsoft, Amazon, Apple, Meta etc.,
Also have customised the scenario a bit and solved the problem. To get more understanding, watch this video
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Input table:
+------------+--------------+
| id |Student |
+------------+--------------+
| 1 | Alice |
| 2 | Bob |
| 3 | Charlie |
| 4 | David |
| 5 | Eve |
+------------+--------------+