Question

我有另一个线程来解决另一个问题，现在我被困在另一个看似简单的错误上。我的鳕鱼如下：

declare
    update_count integer := 0;
    prjt_name varchar2(100) not null := '01213264B';
    cursor my_cur is (select table_name from all_tab_columns@adhoc_pos15 where column_name = 'PROJECT_ID' and owner = 'SANDBOX');
    tableName  my_cur%rowtype;
begin
    for tableName in my_cur
    loop
        update_count := 0;
      Execute immediate
        'select count(t.project_id) as "CNT" from sandbox.'
        || tableName
        || '@adhoc_pos15 t'
        || 'where  t.project_id = (select project_id from sandbox.sb_project@adhoc_pos15 where project_name = upper('
        || prjt_name
        || '))'
      into update_count;
      if update_count = 0 then
       execute immediate
            'DELETE FROM my_cur where table_name = '
            || tableName;
      end if;
    end loop;
end;

我的错误讯息是

ORA-06550: line 11, column 8:
PLS-00306: wrong number or types of arguments in call to '||'
ORA-06550: line 10, column 6:
PL/SQL: Statement ignored
ORA-06550: line 20, column 8:
PLS-00306: wrong number or types of arguments in call to '||'
ORA-06550: line 19, column 6:
PL/SQL: Statement ignored

如果您有兴趣。我将通过一个链接到我之前得到的上一个错误。您可以看到代码最初的样子。

Encountered 'Loop' Error

编辑1：Per Valli的建议。我更新了我的编码并在第15行得到了错误表达式。

declare
    query varchar2(10000);
    update_count integer := 0;
    prjt_name varchar2(100) := '01213264B';
    cursor my_cur is (select table_name from all_tab_columns@db2where column_name = 'PROJECT_ID' and owner = 'SANDBOX');
    tableName  varchar2(100);
begin
  open my_cur;
    loop
    fetch my_cur into tableName;
    exit when my_cur%NOTFOUND;
        update_count := 0;
        execute immediate
        'select count(project_id) as "CNT" from sandbox.' || tableName || '@db2  '
        || ' where project_id = (select project_id from sandbox.sb_project@db2 where project_name = ''' || prjt_name || ''' ) '
        into update_count;
    if update_count > 0 then
     dbms_output.put_line (tableName);
    end if;
   end loop;
  close my_cur;
end;

我错过了一个＆＃34; =＆＃34;符号。这现在运行。我得到的结果不是错误信息

ORA-29913: error in executing ODCIEXTTABLEOPEN callout
ORA-29400: data cartridge error
KUP-04040: file ext_qsp_benefit.dat in DATA_DIR not found
ORA-02063: preceding 3 lines from ADHOC_POS15
ORA-06512: at line 13

最终编辑：成功！显然我无法查询某些表格。所以我就把那些桌子拿出来了。

最终编码是：

declare
  query varchar2(10000);
  update_count integer := 0;
  prjt_name varchar2(100) := '01213264B';
  cursor my_cur is (select table_name from all_tab_columns@db2 where column_name = 'PROJECT_ID' and owner = 'SANDBOX' and table_name in ('X') );
  tableName  varchar2(100);
begin
  open my_cur;
    loop
    fetch my_cur into tableName;
    exit when my_cur%NOTFOUND;
        update_count := 0;
        execute immediate
        'select count(project_id) as "CNT" from sandbox.' || tableName || '@db2  '
        || ' where project_id = (select project_id from sandbox.sb_project@db2 where project_name = ''' || prjt_name || ''' ) '
        into update_count;
    if update_count > 0 then
      dbms_output.put_line (tableName);
    end if;
  end loop;
  close my_cur;
end;

这并不能完全符合我的要求。它将结果发送到dbms_output。但这是一个开始！谢谢大家的帮助！

Answer 1

    declare
        update_count integer := 0;
        prjt_name varchar2(100) := '01213264B';
         tablename  varchar2(100);

        cursor my_cur is 
             select table_name 
                from all_tab_columns@adhoc_pos15 
               where column_name = 'PROJECT_ID' and owner = 'SANDBOX';
    begin
        OPEN my_cur;
        LOOP
         FETCH  my_cur into tableName;
           EXIT WHEN my_cur%NOTFOUND;
            update_count := 0;
             Execute immediate
                 'select count(t.project_id) as "CNT" from sandbox.' 
                || tableName
                || '@adhoc_pos15 t'
                || ' where  t.project_id in (select project_id from sandbox.sb_project@adhoc_pos15 where project_name = upper('
                || prjt_name
                || '))' 
                INTO update_count;
          if update_count = 0 then
           execute immediate
                'DELETE FROM my_cur where table_name = '
                || tablename;
          end if;
        end loop;
   CLOSE my_cur;
    end;

你最后错过了连接。一些语法错误

注意： -

为什么这里需要子查询？

where  t.project_id in (select project_id from sandbox.sb_project@adhoc_pos15 where project_name = upper('
            || prjt_name

您可以替换为

where t.project_name = prjt_name

Answer 2

有一件事看起来不对，prjt_name是一个字符串，但你在查询中将其作为一个数字传递。所以这就是我要改变的地方：

    || 'where  t.project_id = (select project_id from sandbox.sb_project@adhoc_pos15 where project_name = upper('''
    || prjt_name
    || '''))'

这基本上会在字符串值周围添加' '。

然后，由于执行时出现2个错误，因此tableName必定存在问题。我宁愿使用隐式游标，但你应该尝试访问游标的内容，如下所示：

    'select count(t.project_id) as "CNT" from sandbox.'
    || tableName.table_name
    || '@adhoc_pos15 t'
    || 'where  t.project_id = (select project_id from sandbox.sb_project@adhoc_pos15 where project_name = upper('''
    || prjt_name
    || '''))'

你必须从光标中移除delete ...这看起来完全错误。循环只是移动到下一个记录

希望这有帮助。

PL / SQL - 连接时我不断收到此错误：PLS-00306：调用＆＃39; ||＆＃39;

2 个答案: