Code Explanation:

This code creates a view named "revenue" that shows the revenue made by each store for the first quarter of $2022,$ from two tables

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and

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$.$ The code does the following:

The SELECT statement creates two columns:

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which is the store ID from table a$,$ and the revenue from table b which is calculated as the product of the $($price$)$

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and $($quantity$)$

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columns, and is summed up using the SUM$()$ function.

The FROM clause specifies the two tables being queried:

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is aliased as a and

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is aliased as b$.$

The LEFT JOIN clause joins the two tables based on the

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column, which is the primary key of table a and a foreign key in table b$.$ A left join is used so that all records from table a are included in the result set, regardless of whether there is a corresponding record in the table b$.$

The WHERE clause filters the rows where

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falls within the specified date range of January $1,2022,$ to March $31,2022.$

The GROUP BY clause groups the results by

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so that the revenue for each store are calculated separately.

The ORDER BY clause sorts the results by "store#$"$ in ascending order.