我可以使用yql与两个查询进行JOIN,我有两个查询:
select *
from yahoo.finance.historicaldata
where symbol in ('YHOO')
and startDate='" + startDate + "'
and endDate='" + endDate + "'&format=json&diagnostics=true&env=store://datatables.org/alltableswithkeys&callback="
和
select symbol,
Earnings_per_Share,
Dividend_Yield,
week_Low,
Week_High,
Last_Trade_Date,
open,
low,
high,
volume,
Last_Trade
from csv where url="http://download.finance.yahoo.com/d/quotes.csv?s=YHOO,GOOG&f=seyjkd1oghvl1&e=.csv"
and columns="symbol,Earnings_per_Share,Dividend_Yield,Last_Trade_Date,week_Low,Week_High,open,low,high,volume,Last_Trade"
我需要将这两个查询转换为一个。这该怎么做?