2003-05-17 13:40:42 / Oracle入门与认证
QUESTION NO: 37Which two statements about row migration are true? (Choose two)A. Row migration is caused by a PCTREE value set too low.B. Row migration can be resolved using the ANALYZE command.C. Row migration can be reduced by choosing a larger block size.D. Row migration means that row pieces are stored in different blocks.E. Queries that use an index to select migrated rows perform additional I/O.答案是A和B，个人认为A是没有疑问的，问题是B，ANALYZE并不能RESOLVE ROW MIGRATIO
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