SQL--工作中遇到的

--递归查询产品分类

WITH    cte
AS ( SELECT   *
FROM     syn_Categories
WHERE    id = $CategoryID$
UNION ALL
SELECT   syn_Categories.*
FROM     cte aaa ,
syn_Categories
WHERE    aaa.id = syn_Categories.parentId
AND aaa.id != 0
)
SELECT  *
FROM    ( SELECT    ROW_NUMBER() OVER ( ORDER BY a.SKU ) AS ROWID ,
a.* ,
ISNULL(d.NetStock, 0) AS NetStock,
c.SupplierCode
FROM      MVPProduct a
LEFT JOIN SupplyCommitment b ON a.SKU = b.SKU
LEFT JOIN (SELECT SKU, ID, NetStock FROM MVPStockUp WHERE ID IN (
SELECT MAX(ID) FROM MVPStockUp
GROUP BY SKU)) d ON a.SKU = d.SKU
AND (
$CategoryID$ = 0 OR (
CategoryID IN (
SELECT ID
FROM   cte
WHERE  ID NOT IN ( SELECT DISTINCT
( ParentId )
FROM
cte ))
))
LEFT JOIN SupplierSumMerchandise c ON b.SupplierID = c.SupplierID
WHERE  a.Status = 1