11g OCA认证考试途径：(两门考试、无需培训)
途径一：1z0-007 + 1z0-052
途径二：1z0-051 + 1z0-052
途径三：1z0-047 + 1z0-052
11g OCP认证考试途径：(叁门考试 + 一门原厂培训)
途径一：OCA(1z0-007 + 1z0-052) + 1z0-053 + 一门原厂培训
1z0-007 Introduction to Oracle9i: SQL
1z0-052 Oracle Database 11g: Administration I
1z0-053 Oracle Database 11g: Administration II
途径二：OCA(1z0-051 + 1z0-052) + 1z0-053 + 一门原厂培训
1z0-051 Oracle Database 11g: SQL Fundamentals I
1z0-052 Oracle Database 11g: Administration I
1z0-053 Oracle Database 11g: Administration II
途径三：OCA(1z0-047 + 1z0-052) + 1z0-053 + 一门原厂培训
1z0-047 Oracle Database SQL Expert
1z0-052 Oracle Database 11g: Administration I
1z0-053 Oracle Database 11g: Administration II
