imp命令导入数据的时候报错：
IMP-00017: following statement failed with ORACLE error 30567:"ALTER TABLE XXX ADD SUPPLEMENTAL LOG GROUP “GGS_XXX”(“XXX”) ALWAYS
ORA-30567:name already used by an existing log group
解决方法：查询dba_log_group_columns表，看一下有没有已经存在的log_group_name