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The PART table contains these columns:ID NUMBER(7) PKCOST NUMBER(7,2)PRODUCT_ID NUMBER(7)Evaluate these two SQL statements:1.SELECT ROUND(MAX(cost),2),ROUND(MIN(cost),2),ROUND(SUM(cost),2),ROUND(AVG(cost),2)FROM part;2.SELECT product_id, ROUND(MAX(cost),2),ROUND(MIN(cost),2),ROUND(SUM(cost),2),ROUND(AVG(cost),2)FROM partGROUP BY product_id;How will the results differ?Select one:a.One of the statements will generate an error.b.The results will be the same, but the display will differ.c.Statement 1 will only display one row of results; statement 2 could display more than one.d.Statement 1 will display a result for each part; statement 2 will display a result for each product.

Question

The PART table contains these columns:ID NUMBER(7) PKCOST NUMBER(7,2)PRODUCT_ID NUMBER(7)Evaluate these two SQL statements:1.SELECT ROUND(MAX(cost),2),ROUND(MIN(cost),2),ROUND(SUM(cost),2),ROUND(AVG(cost),2)FROM part;2.SELECT product_id, ROUND(MAX(cost),2),ROUND(MIN(cost),2),ROUND(SUM(cost),2),ROUND(AVG(cost),2)FROM partGROUP BY product_id;How will the results differ?Select one:a.One of the statements will generate an error.b.The results will be the same, but the display will differ.c.Statement 1 will only display one row of results; statement 2 could display more than one.d.Statement 1 will display a result for each part; statement 2 will display a result for each product.

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Solution

The correct answer is c. Statement 1 will only display one row of results; statement 2 could display more than one.

Explanation: The first SQL statement is calculating the maximum, minimum, sum, and average of the 'cost' column for all records in the 'part' table. It will return only one row of results because there is no GROUP BY clause.

The second SQL statement is doing the same calculations, but it's grouping the results by 'product_id'. This means it will return a separate row of results for each unique 'product_id' in the 'part' table. If there are multiple parts with the same 'product_id', their costs will be aggregated in the calculations.

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