The following diagram (only showing the statistics collection and profiling options) shows the hierarchy of automatic maintenance commands for statistics collection and profiling and the dependencies.
下图（只显示统计信息收集和配置选项）展示了统计信息收集和配置的自动维护命令的层次结构和相关性。
2
This paper presents an automatic generation algorithm on product hierarchy structure in BOM, which is based on database technique.
以数据库技术为基础，本文提出了一种自动生成BOM表的产品装配层次的递归算法。
3
This paper presents an automatic generation algorithm on product hierarchy structure in BOM, which is based on database technique. The algorithm is very concise, stable, and reliable.