查询
db.getCollection('应收账款').find({"investorId" : "9256090", "projectId" : "9202051"})
更新所有找到匹配的数据
db.getCollection('应收账款').update({"investorId" : "9256090", "projectId" : "9202051"}, {$set:{"rowNumber":null}}, {multi: true})
正文完