" select orgid,polnum,sernum,chgitm,curcode from nposditem where "+
" chgitm='FC001' and result='CL' and orgID=? and polnum=? "+
" ) T01 "+
" where "+
" exists (select 1 from nposdplanDetail T02 "+
" where T01.orgID=T02.orgID and T01.polnum=T02.polnum "+
" and T01.curcode=T02.curcode "+
" and T01.sernum=T02.sernum and T02.chgitm=T01.chgitm "+
" and T02.changetype <> '1' "+
" and T02.isbeforeorafter='Y' "+
" and T02.reinstatable = '1'
我现在要把这条jdbc的sql改为mybatis,其中所有条件基本都改成java代码去实现,但是这个T02.changetype <> '1' 没看懂,哪位给解释一下