OBCP V4 培训材料视图名称错误，建议修改一下

[王现岗]

DBA_SEQUECE → DBA_SEQUENCES
DBA_DB_LINK → DBA_DB_LINKS

GV$OB_MEMSOTRE → GV$OB_MEMSTORE

[淇铭]

已经反馈给培训的同学了 后面会查看 如果有问题会修复