______: A collection of related information, organized for easy retrieval.
A.Data
B.Database
C.Buffer
D.Stack
第1题:
Whiledesigningyourdatabase,youhavecreatedtheEMPLOYEEStableasanindex-organized(IOT).YouwanttocreateabitmapindexontheJOD_IDcolumntomakequeriesfaster.Whichtaskmusthavebeencompletedsothatyouareabletocreatethebitmapindex?()
A.Aprimarykeymusthavebeencreated.
B.Amappingtablemusthavebeencreated.
C.Anoverflowtablespacemusthavebeenspecified.
D.ThePCTTHRESHOLDoptionmusthavebeenspecified.
第2题:
第3题:
第4题:
47______.
A.old
B.new
C.same
D.easy
第5题:
第6题:
在系统数据库 () 中存在一个存储所有触发器信息的系统表。
A.schema
B.information_schema
C.Information_table
D.Information