第1题:
Youhaveexecutedthiscommandtochangethesizeofthedatabasebuffercache:SQL>ALTERSYSTEMSETDB_CACHE_SIZE=2516582;Systemaltered.Toverifythechangeinsize,youexecutedthiscommand:SQL>SHOWPARAMETERDB_CACHE_SIZENAMETYPEVALUE------------------------------------------------db_cache_sizebiginteger4194304Whyisthevaluesetto4194304andnotto2516582()
A.Because4194304isthegranulesize
B.Because4194304isthestandardblocksize
C.Because4194304isthelargestnonstandardblocksizedefinedinthedatabase
D.Because4194304isthetotalsizeofdataalreadyavailableinthedatabasebuffercache
第2题:
17.
A. He’s
B. His
C. He
D. Him
第3题:
第4题:
He kept on __________(talk) until the class was over.
第5题: