首先,感谢任何可以提供帮助的人。这些年来我做了很多加入的查询,但有些人无法让这个问题起作用。这是我第一次使用Transform / Pivot命令。
查询1:
TRANSFORM Max(price_btc)
SELECT year1, month1, day1, hour1, minute1
FROM HISTORY
WHERE [SYMBOL] = "XRP" OR [SYMBOL] = "EOS" OR [SYMBOL] = "NEO"
GROUP BY year1, month1, day1, hour1, minute1
PIVOT symbol;
查询2:
SELECT year1, month1, day1, hour1, minute1, price_usd
FROM HISTORY
WHERE [symbol] = "BTC"
ORDER BY year1, month1, day1, hour1, minute1;
Query1和Query都可以正常工作。 我想可以在year1,month1,day1,hour1,minute1上继续加入这两个查询 因此我创建了第三个查询:
查询3:
SELECT *
FROM
(
SELECT year1, month1, day1, hour1, minute1, price_usd
FROM HISTORY
WHERE [symbol] = "BTC"
ORDER BY year1, month1, day1, hour1, minute1
) AS A
LEFT JOIN
(
TRANSFORM MAX(price_btc)
SELECT year1, month1, day1, hour1, minute1
FROM HISTORY
WHERE [SYMBOL] = "XRP" OR [SYMBOL] = "EOS" OR [SYMBOL] = "NEO"
GROUP BY year1, month1, day1, hour1, minute1
PIVOT symbol
) AS B
ON A.year1 = B.year1 AND A.month1 = B.month1 AND A.day1 = B.day1 AND A.hour1 = B.hour1 AND A.minute1 = B.minute1;
但是,这会产生一个错误,指出“FROM子句中的语法错误”
我想上传单个查询结果的excel文件,但似乎无法这样做。
有人可以帮忙吗?非常感谢您的帮助。
答案 0 :(得分:0)
在子查询中,访问权限不允许Transform
+ Pivot
。要解决该限制,您需要将交叉表查询存储在单独的查询中,例如:
<强> QUERY3:强>
TRANSFORM MAX(price_btc)
SELECT year1, month1, day1, hour1, minute1
FROM HISTORY
WHERE [SYMBOL] = "XRP" OR [SYMBOL] = "EOS" OR [SYMBOL] = "NEO"
GROUP BY year1, month1, day1, hour1, minute1
PIVOT symbol
<强> Query4:强>
SELECT *
FROM
(
SELECT year1, month1, day1, hour1, minute1, price_usd
FROM HISTORY
WHERE [symbol] = "BTC"
ORDER BY year1, month1, day1, hour1, minute1
) AS A
LEFT JOIN
Query3 AS B
ON A.year1 = B.year1 AND A.month1 = B.month1 AND A.day1 = B.day1 AND A.hour1 = B.hour1 AND A.minute1 = B.minute1;
答案 1 :(得分:0)
一如既往,在发布问题后我立刻就有了一个想法! Transform / Pivot动作必须在加入之外发生。此代码段现在有效:
TRANSFORM First(price_btc)
SELECT A.year1, A.month1, A.day1, A.hour1, A.minute1, A.price_usd
FROM
(
SELECT year1, month1, day1, hour1, minute1, symbol, price_btc
FROM HISTORY
WHERE [SYMBOL] = "XRP" OR [SYMBOL] = "EOS" OR [SYMBOL] = "NEO"
)
AS B LEFT JOIN
(
SELECT year1, month1, day1, hour1, minute1, price_usd
FROM HISTORY
WHERE [symbol] = "BTC"
ORDER BY year1, month1, day1, hour1, minute1
) AS A
ON (A.minute1 = B.minute1) AND (A.hour1 = B.hour1) AND (A.day1 = B.day1) AND
(A.month1 = B.month1) AND (A.year1 = B.year1)
GROUP BY A.year1, A.month1, A.day1, A.hour1, A.minute1, A.price_usd
PIVOT [SYMBOL];