SELECT ddkh, sum(hz - sjsk) AS syhk  FROM (SELECT (SELECT name                  FROM bd_customer@ncc0614                 WHERE pk_customer = a.ccustomerid) AS ddkh, --订单客户               substr(b.dbizdate, 0, 7) AS ckrq, --入库日期               sum(b.norigtaxmny) AS hz, --货值               CASE                                WHEN sum(c.money_cr) IS NULL THEN                  0                 ELSE                  sum(c.money_cr)               END AS sjsk --实际收款          FROM ic_saleout_h@ncc0614 a          LEFT JOIN ic_saleout_b@ncc0614 b            ON a.cgeneralhid = b.cgeneralhid          LEFT JOIN so_custaccountdetail@ncc0614 c            ON b.cgeneralbid = c.cgeneralbid         WHERE a.dr = 0           AND b.dr = 0           AND c.dr = 0         GROUP BY a.ccustomerid, substr(b.dbizdate, 0, 7)         ORDER BY substr(b.dbizdate, 0, 7)) WHERE 1=1   ${if(len(p1) == 0,"","and ddkh = '" +p1+ "'")}    ${if(len(p4) == 0,"","and ckrq < " + substr(p4,0,7) + "")}  GROUP BY ddkh参数如下所示:报错如下所示: