Question
SELECT title, cost, retail, (( (retail - cost) / retail) * 100) AS Profit Margin FROM books WHERE Profit Margin < 55; !*!*! I am
SELECT title, cost, retail, (( (retail - cost) / retail) * 100) AS "Profit Margin" FROM books WHERE "Profit Margin" < 55;
!*!*! I am getting ORA-00904: "Profit Margin": invalid identifier
Why is that? how to fix it?
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Data Science Project Ideas In Health Care Volume 1
Authors: Zemelak Goraga
1st Edition
B0CPX2RWPF, 979-8223791072
