物化视图查询有什么问题？

Question

查询：

CREATE MATERIALIZED VIEW MV_DATA
BUILD IMMEDIATE 
REFRESH FAST START WITH SYSDATE NEXT (SYSDATE + 1) + 11 / 24 WITH 
ROW_NUM
ON COMMIT
DISABLE QUERY REWRITE
AS SELECT ROWNUM AS ROW_NUM, SYSTIMESTAMP AS REFRESH_DATE_TIME, R.* 
FROM ROLES R;

命令行错误：3列：67

  

错误报告
  SQL错误：ORA-00905：缺少关键字
  00905. 00000-“缺少关键字”
  *原因：
  *动作：

请指导我我做错了