A.調(diào)整索引的訪問(wèn)方式 B.及時(shí)根據(jù)執(zhí)行計(jì)劃的開(kāi)銷(xiāo)調(diào)整表連接順序 C.及時(shí)更新表的統(tǒng)計(jì)信息,讓CBO選擇正確的執(zhí)行計(jì)劃 D.正確選擇表與表之間的連接方式
A.Access B.Oracle C.Sybase D.Informix
A.cache buffer handles B.cache buffers chains C.cache buffers lruchain D.library cache lock