update GW_DocTrack set dealman=dealman+'1111' 请教

[crazyrain]

update GW_DocTrack set dealman=dealman+'1111'

dealman是一个字段名称，在oracle里面的写法是怎样的，上面的不行呀，

[l2g32003]

update GW_DocTrack set dealman=dealman+1111;