mssm和assm

在一些帖子和书上看到了mssm和assm不知是什么，后面查找了一下：
mssm=Manual Segment Space Management
assm=automatic Segment Space Management






引用：
Manual Segment Space Management: You set various parameters such as FREELISTS,
FREELIST GROUPS, PCTUSED, and others to control how space is allocated, used, and
reused in a segment over time. I will refer to this space management method in this
chapter as MSSM, but bear in mind that that is a made-up abbreviation that you will
not find in the Oracle documentation.《Expert Oracle Database Architecture 9i and 10g Programming Techniques and Solutions》