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목록join (1)
JUST DO IT!
SQL 학습 - JOIN (TIL 230511)
📚 KDT WEEK 6 DAY 4 TIL JOIN 숙제 %%sql SELECT LEFT(ts.ts, 7) as month, ch.channel, COUNT(DISTINCT ch.userid) as uniqueUsers, COUNT(DISTINCT CASE WHEN trans.amount > 0 THEN ch.userid END) as paidUsers, ROUND(paidUsers*100.0 / NULLIF(uniqueUsers,0), 2) as conversionRate, SUM(CASE WHEN trans.refunded is not NULL THEN trans.amount END) as grossRevenue, SUM(CASE WHEN trans.refunded is False THEN trans...
TIL
2023. 5. 12. 17:04