表或视图不存在

Question

嗨，下面是我的代码。我需要创建一个视图并使用视图中的数据在另一个游标中获取数据。但是当我执行我的代码时，我收到错误

"ORA-06550：第56行，第37栏：PL/SQL：ORA-00942：表或视图不存在ORA-06550：第 52 行，第 9 列：PL/SQL：SQL 语句被忽略"

这里有什么问题？提前谢谢。

declare
drop_view_sql varchar2(100) := 'drop view rv_task_number_view';
type tasks_rec is record(task_number varchar2(20));
type t_tab is table of  tasks_rec;
tasks_tab t_tab;
notes_rec xx_fs_mob_loc_rec.task_notes_rec;
notes_tab xx_fs_mob_loc_rec.task_notes_tab;
    begin
        execute immediate 'create view apps.rv_task_number_view  as
                          SELECT distinct ct.task_number                  
                          FROM csf_ct_tasks ct ,
                            cs_estimate_details ced,
                            csf_debrief_headers cdh,
                            csf_debrief_lines   cdl,
                            jtf_task_assignments jta  
                   WHERE    1=1
                   and      jta.task_id = ct.task_id
                   and      jta.task_assignment_id = cdh.task_assignment_id(+)
                   and      cdh.debrief_header_id = cdl.debrief_header_id(+)
                   and      cdl.debrief_line_id = ced.source_id(+)
                   AND      ((ct.planned_end_date between (sysdate-30) and (sysdate+30)) or (ct.scheduled_end_date between (sysdate-30) and (sysdate+30)))
                   and      jta.resource_id = 10153';
              execute immediate     'grant select on apps.rv_task_number_view to apps';
        DBMS_OUTPUT.PUT_LINE(sqlerrm);
        declare
        CURSOR c2 is
        SELECT ct.task_id,jtf_note_id,  jnv.notes,
               jnv.creation_date,jnv.last_update_date
            FROM
               jtf_notes_vl jnv,
               csf_ct_tasks ct,apps.rv_task_number_view rvt
            WHERE
                jnv.source_object_code = 'TASK' 
                and ct.task_number = jnv.source_number
                and ct.task_number = rvt.task_number
                order by task_id, jtf_note_id;
        begin
        open c2;
        fetch c2 bulk collect into notes_tab;
        DBMS_OUTPUT.PUT_LINE(sqlerrm);
        end;
        execute immediate drop_view_sql;
        DBMS_OUTPUT.PUT_LINE(sqlerrm);
    END;

Answer 1

您正在尝试访问使用动态SQL创建的TABLE/VIEW，该位于您SELECT它的同一块中（静态SQL ）

每个PL/SQL块都会在执行前编译。虽然编译rv_task_number_view不可用！

因此，SELECT也需要是动态的！

  C2 SYS_REFCURSOR;
   OPEN C2 FOR 
    'SELECT ct.task_id,jtf_note_id,  jnv.notes,
           jnv.creation_date,jnv.last_update_date
        FROM
           jtf_notes_vl jnv,
           csf_ct_tasks ct,apps.rv_task_number_view rvt
        WHERE
            jnv.source_object_code = ''TASK'' 
            and ct.task_number = jnv.source_number
            and ct.task_number = rvt.task_number
            order by task_id, jtf_note_id';