1.备份表结构
dbschema -d databasename -t tablename tablename.sql
2.备份表中数据
dbaccess databasename
unload to tablename.unl select * from tablename
3.创建表
dbaccess databasename tablename.sql
4.导入数据
load from tablename.unl insert into tablename
原文：http://www.cnblogs.com/shaosong/p/4578616.html