19. SQL (前方一致)
• Select count(*) from Sales
where "PRODUCT_ID" like
'ABCD%'
• Result : 25
• Speed : 865 ms 552 µs
20. SQL(全文検索)
• Select count(*) from Sales
where "PRODUCT_ID" like
'%ABC%'
• Result : 4323
• Speed : 1.729 seconds
21. SQL(集計,ランキング)
• select "SALES_DATE",
sum("PRODUCT_PRICE"*"AMOUNT"/1000) "SUM"
from "SALES"
where "SALES_DATE" > to_date(1977,'YYYY')
group by "SALES_DATE"
order by "SUM" desc
limit 1000
• Result : 1000
• Speed : 10.611 seconds