遇到了个奇怪问题
jfbao 2004-07-12 05:04:09 select A.ordsts, A.hinkbn, A.hincd, B.hinnm, A.gsnno, A.bunno, A.denkbn, A.cmnno, C.cusyak, D.toknm, A.tokord, A.cmnsu, A.tanka, A.kingak, A.orgnki, A.ssnki, A.organs, A.ssans, A.jcubkt, A.mpsbkt, A.hikkbn, A.hikzsu, A.hikbkt, A.bunhik, A.azhik,A.hnksu, A.hnknki, A.syusno, A.nnynm, A.nnypost, A.nnyadl, A.nnyadl2, A.telno, E.cusyak as cusyak2, F.cusyak as cusyak3, A.hakisu, A.konno, A.konisu, A.hsno, A.hssu, A.tohssu, A.syussu, A.syujbi, A.syujsu, A.syuzsu, A.bunsu, A.bunkbn, A.skykbn, A.kykskb, A.biko,A.seiban, A.sbnhik, A.chokbn, A.jcubi, A.torkbi, A.ssmtbi from jcu A, hin_mst B, jkn_mst C, tok_mst D, jkn_mst E,jkn_mst F where A.hincd = B.hincd (+) and '906' = C.key01 (+) and A.busyo = C.key02 (+) and '102' = E.key01 (+) and A.bincd = E.key02 (+) and '103' = F.key01 (+) and A.konhou = F.key02 (+) and A.tokcd = D.tokcd (+) and ( A.hincd='000-1686' )
这样的SQL如何理解啊??(+)??