这里是：
SELECT
L0.CatName AS Cat0,
L1.CatName AS Cat1,
L2.CatName AS Cat2,
L3.CatName AS Cat3,
L4.CatName AS Cat4,
L5.CatName AS Cat5,
L6.CatName AS Cat6,
L7.CatName AS Cat7
FROM
YourTable AS L0
LEFT JOIN YourTable AS L1
ON L0.CatID = L1.ParentID
LEFT JOIN YourTable AS L2
ON L1.CatID = L2.ParentID
LEFT JOIN YourTable AS L3
ON L2.CatID = L3.ParentID
LEFT JOIN YourTable AS L4
ON L3.CatID = L4.ParentID
LEFT JOIN YourTable AS L5
ON L4.CatID = L5.ParentID
LEFT JOIN YourTable AS L6
ON L5.CatID = L6.ParentID
LEFT JOIN YourTable AS L7
ON L6.CatID = L7.ParentID
WHERE
L0.ParentID = 0
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