A.多個實例同時操作一個數(shù)據(jù)庫 B.多個實例操作多個數(shù)據(jù)庫 C.一個實例同時操作多個數(shù)據(jù)庫 D.一個實例操作一個數(shù)據(jù)庫
A.ABS B.ACOS C.CEIL D.CHR
A.CONNECTIONS B.PROCESSES C.NUMBEROFCONNECTIONS D.NUMBEROFPROCESSES