检查点

• Turn checkpointing on or off
  启用或禁用检查点功能。
• No log and truncate only are synonyms
  执行检查点。
• Using checkpoints in packages
  >在包中使用检查点
• To discover what is preventing log truncation in a given case , use the
  有关检查点如何影响事务日志的信息，请参阅
• Checkpointing scheme based on imprecise computation for real - time systems
  基于非精确计算的实时任务检查点设置策略
• Enumeration value indicating how the accessibility checkpoint is used
  枚举值，此值指示可访问性检查点的使用方式。
• Enumeration value indication how the accessibility checkpoint is verified
  枚举值，指示可访问性检查点的验证方式。
• Enhanced to try to perform a checkpoint in a specified period of time
  增强了在指定时间段内尝试执行检查点的功能。
• No checkpoint scn will be issued after the initial checkpoint scn
  在初始检查点scn后，就不会再发放新的检查点scn 。
• Specify a checkpoint file
  指定检查点文件。