注意事项：
- 必须以管理员身份登录；
- sequence_owner必须为大写，不管你的用户名是否大写。只有大写才能识别。
selectfromwhere'用户名'select count(*) from dba_sequences where sequence_owner'用户名'selectfromwhereselect count(*) from dba_sequences where sequence_ownerselectfromwhere'CHES'select count(*) from dba_sequences where sequence_owner'CHES'4，如需转载请自行联系原作者
