How to Solve Capital Gain/ Loss Problem
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Capital Gain/Loss
Table: Stocks +---------------+---------+ | Column Name | Type | +---------------+---------+ | stock_name | varchar | | operation | enum | | operation_day | int | | price | ...
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Understanding the Capital Gain/ Loss Problem
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Problem Statement
Table: Stocks +---------------+---------+ | Column Name | Type | +---------------+---------+ | stock_name | varchar | | operation | enum | | operation_day | int | | price | int | +---------------+---------+ (stock_name, operation_day) is the primary key (combination of columns with unique values) for this table. The operation column is an ENUM (category) of type ('Sell', 'Buy') Each row of this table indicates that the stock which has stock_name had an operation on the day operation_day with the price. It is guaranteed that each 'Sell' operation for a stock has a corresponding 'Buy' operation in a previous day. It is also guaranteed that each 'Buy' operation for a stock has a corresponding 'Sell' operation in an upcoming day. Write a solution to report the Capital gain/loss for each stock. The Capital gain/loss of a stock is the total gain or loss after buying and selling the stock one or many times. Return the result table in any order. The result format is in the following example.
Capital Gain/Loss
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