Rollback all database migrations 回滚所有数据库迁移
Rollback the last database migration 回滚上一个数据库迁移
database rollback and synchronization schema 数据库倒回与同步纲目
At the end of the transaction boundary (commit or rollback), the database agent is disassociated with the application.
在事务边界(提交或回滚)的末尾，数据库代理与应用程序分离。
Currently, the only way to ensure total rollback capability is to do a full file system and database backup before the deployment.
目前，确保全面回滚能力的唯一方法是在部署前进行完整的文件系统和数据库备份。
Create few additional rollback segments to handle the database activities.
创建少数附加回滚段来处理数据库活动。
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