我有這個疑問,這將使我那些有場「用戶名」行復制: SELECT id, jos_users.username, email, password, lastvisitDate
FROM jos_users
INNER JOIN (SELECT username
FROM jos_users
GROUP BY username HAVING count(id) > 1)
我試圖繪製堆積面積(填充線)在某些點上疊加與空多個系列就像是 series 1: [0,5],[1,3],[2,2],[3,2],[4,2]
series 2: [0,5],[1,2],[2,null],[3,1],[4,2]
series 3: [0,5],[1,3],[2,2],[3,5],[4,2]
在上述情況下,在點2,海軍報不繪製系列3:[2,2] 我看到圖表繪製3系列在堆,