Bạn có thể sử dụng CSV
id kết quả như:
SELECT *
FROM tblreport
WHERE FIND_IN_SET(ID,(SELECT GROUP_CONCAT(lv SEPARATOR ',') FROM (
SELECT @pv:=(SELECT GROUP_CONCAT(ID SEPARATOR ',')
FROM tblreport WHERE ParentID IN (@pv)) AS lv FROM tblreport
JOIN (SELECT @pv:=1)tmp
WHERE ParentID IN (@pv)) a));
Đầu ra:
ID Name ParentID
2 2nd 1
3 3rd 1
4 4th 2
CHỈNH SỬA:
Nếu bạn cũng cần hàng gốc, bạn có thể sử dụng UNION ALL
:
SET @var = 1;
SELECT *
FROM tblreport
WHERE FIND_IN_SET(ID,(SELECT GROUP_CONCAT(lv SEPARATOR ',') FROM (
SELECT @pv:=(SELECT GROUP_CONCAT(ID SEPARATOR ',')
FROM tblreport WHERE ParentID IN (@pv)) AS lv FROM tblreport
JOIN (SELECT @pv:[email protected])tmp
WHERE ParentID IN (@pv)) a))
UNION ALL
SELECT *
FROM tblReport
WHERE ID = @var
ORDER BY ID;