Chapter 8, Problem 8RQ

Write a Select statement that returns the Trading_Symbol column and the Num_Shares column only from the rows where Selling_Price is greater than Purchase_Price and Num_Shares is greater than 100. The results should be sorted bythe Num_Shares column in ascending order.

When should a subquery be nested inside of a HAVING clause?

the employee table have the following . ask user what is the employee_id and how much employee wants to contribute 2 substitutions variable from end user &emp_id      &contribution_amount If employee salary is in between $1000-$3999 And if  employee's contribution amount is less than $100 then company match $100                   if  employee's contribution amount is greater than 100 but less than $200 then company match $75                  if  employee's contribution amount is greater than $200 then company match $50 $4000-$6999 And if  employee's contribution amount is less than $100 then company match $150                   if  employee's contribution amount is greater than 100 but less than $200 then company match $100                  if  employee's contribution amount is greater than $200 then company match $75  $7000-$12000And if  employee's contribution amount is less than $100 then company match $200                   if  employee's contribution amount is greater than…

How do you use the LEAD and LAG functions, and what are their primary purposes?

The following statement uses a non-correlated subquery to find the South American country with the smallest population: SELECT * FROM Country WHERE Continent = 'South America' AND Population = (SELECT MIN(Population) FROM Country WHERE Continent = 'South America')\G Rewrite the statement to use a correlated subquery.

In cell B20, enter a formula to calculate the number of clients the sales associate had with annual sales reaching the target set in cell B16. (Hint: This time, use the column label Client as the Field argument. The criteria range should be A15:B16.) Remember, the values in the Client field are text values. Use the appropriate function.

When is it appropriate to nest a subquery within a HAVING clause?

SELECT COUNT(INV_NUMBER) AS 'Total Invoices', SUM(TOTAL_PRICE) AS 'Total Sales', MIN(TOTAL_PRICE) AS 'Minimum Customer Purchases', MAX(TOTAL_PRICE) AS 'Largest Customer Purchases', ROUND(AVG(TOTAL_PRICE), 2) AS 'Average Customer Purchases'FROM (SELECT CUS_CODE, LINE.INV_NUMBER AS INV_NUMBER, ROUND(SUM(LINE.LINE_PRICE * LINE.LINE_UNITS), 2) AS TOTAL_PRICEFROM INVOICE, LINE WHERE INVOICE.INV_NUMBER = LINE.INV_NUMBER GROUP BY CUS_CODE, LINE.INV_NUMBERORDER BY CUS_CODE, LINE.INV_NUMBER)INVOICELINE;     i use this code but it didn't show the same value as in the question

B) if the company wants to cut the margin of error in half, they must survey ____ users, type a while number.