入库 购进单价不同，出库单价相同 了。 
跟踪语句

SELECT    '1' FLAG00,a.YPNM00, a.YPMC00, a.YPGG00,a.RKDW00 QLDW00,A.LSDJ00 QLDJ00, A.ZHL000,
A.RKSL00 QLSL00, 0 SFSL00, b.GJJ000 GJDJ00,b.PFJ000 PFDJ00,' 'BZ0000,B.YPTYM0,A.RKDH00   
 FROM YK_YPRKMX A,BM_YD0000 B 
 WHERE A.RKDH00='020475' AND A.YPNM00=B.YPNM00

修改后 

SELECT    '1' FLAG00,a.YPNM00, a.YPMC00, a.YPGG00,a.RKDW00 QLDW00,A.LSDJ00 QLDJ00, A.ZHL000,
A.RKSL00 QLSL00, 0 SFSL00, a.gjdj00 GJDJ00,a.gjje00 PFDJ00,' 'BZ0000,B.YPTYM0,A.RKDH00   
 FROM YK_YPRKMX A,BM_YD0000 B 
 WHERE A.RKDH00='020475' AND A.YPNM00=B.YPNM00