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TheSPFILEforthePRODdatabasespecifiesthefollowinginitializationparametervalues：
SGA_TARGET=2G
DB_8K_CACHE_SIZE=128M
YoucreateatablespacenamedHRwiththenon-standardblocksizeof8K.FourdatabaseusersarerunningqueriesonatableintheHRtablespace.Theseuserscomplainthatthequeriesaretakinglongerthanusualtocomplete.Whileinvestigatingthereasonsforthisdelay，youdiscoverthatthedatabaseencountersextensivecachemissesonthedatabasebuffercachewiththeblocksizeof8K.YouissuethefollowingstatementtoincreasethevalueoftheDB_8K_CACHE_SIZEinitializationparameterto256M：
SQL>ALTERSYSTEMSETDB_8K_CACHE_SIZE=256MSCOPE=BOTH；
Whatistheresultofthisstatement？（）
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