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