第 23 题 (多选题)： Which two statements are true about the Oracle join and ANSI join syntax.

A. The Oracle join syntax performs better than the SQL: 1999 compliant ANSI join syntax. B. The Oracle join syntax lacks the ability to do outer joins. C. The SQL: 1999 compliant ANSI join syntax supports creation of a Cartesian product of two tables. D. The Oracle join syntax supports creation of a Cartesian product of two tables. E. The Oracle join syntax performs less well than the SQL: 1999 compliant ANSI join syntax 显示答案