How to Solve Reformat Department Table Problem
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Reformat Department Table
Table: Department +-------------+---------+ | Column Name | Type | +-------------+---------+ | id | int | | revenue | int | | month | varchar | +-------------+---------+ ...
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Understanding the Reformat Department Table Problem
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Problem Statement
Table: Department +-------------+---------+ | Column Name | Type | +-------------+---------+ | id | int | | revenue | int | | month | varchar | +-------------+---------+ In SQL,(id, month) is the primary key of this table. The table has information about the revenue of each department per month. The month has values in ["Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"]. Reformat the table such that there is a department id column and a revenue column for each month. Return the result table in any order. The result format is in the following example.
Reformat Department Table
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Examples
Example inputExample outputThe revenue from Apr to Dec is null. Note that the result table has 13 columns (1 for the department id + 12 for the months).
Constraints
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