谷歌大查詢分揀多列

Question

的獨特組合，我們已經有一個網站的所有推薦的表格：（每推薦一個條目）

String : referral 
String : target 
integer: date 

現在，我們想用大查詢到所有推薦排序基於計數，如：

referral  : target,   count: 

google.com/... : welcome.html, 28353 
bing.com/... : welcome.html, 5334 
gmail.com/... : about.html,  343 
... 

大查詢SQL應該是什麼？

Answer 1

爲什麼不乾脆由兩列組？

SELECT referral, target, COUNT(*) as cnt 
FROM [mydataset.referrallog] 
GROUP BY referral, target 
ORDER BY cnt DESC 

Answer 2

如果我得到你的權利，所以：

SELECT COUNT(path) AS path_count, path 
FROM (
    SELECT concat(referrer, target) AS path 
    FROM [mydataset.referrallog]) 
GROUP BY path ORDER BY path_count DESC;