Php 从oracle获取clob数据时出错

从oracle查询时出现以下错误：

ORA-06502:PL/SQL:数字或值错误：字符串缓冲区太小 ORA-06512：在第1行

我的问题是：

with my_clob as ( select ID,SUBJECT,EMAIL_LAYOUT,EMAIL_SENDER_TYPE from BMS_EMAIL_TEMPLATE where ID = 26 ) select ID,SUBJECT,EMAIL_SENDER_TYPE, dbms_lob.substr(EMAIL_LAYOUT, 4000, (level - 1) * 4000 + 1) AS EMAIL_LAYOUT from my_clob connect by level <= ceil(dbms_lob.getlength(EMAIL_LAYOUT) / 4000)

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谁能帮我一下我这里缺少什么吗？

你能提供表格BMS\u电子邮件\u模板的描述吗？ 电子邮件布局是clob还是大型varchar2

我无法用以下代码重现您的错误

with bs as (    
    select to_clob( lpad('x',37,'x')) f1 from dual),
bs1 as (select f1||f1 ||f1 ||f1 ||f1 ||f1 ||f1 ||f1 ||f1 ||f1 ||f1 ||f1 as f1 from bs),
bs2 as (select f1||f1 ||f1 ||f1 ||f1 ||f1 ||f1 ||f1 ||f1 ||f1 ||f1 ||f1 as f1 from bs1),
bs3 as (select f1||f1 ||f1 ||f1 ||f1 ||f1 ||f1 ||f1 ||f1 ||f1 ||f1 ||f1 as f1 from bs2),
cl as ( select f1||f1 ||f1 ||f1 ||f1 ||f1 ||f1 ||f1 ||f1 ||f1 ||f1 ||f1 as f1 from bs3),
my_clob AS (
    SELECT
        26 id,
        'subj' subject,
        f1 email_layout,
        length(f1) email_length,
        'est' email_sender_type
    FROM
        cl
) SELECT
    id,
    subject,
    email_sender_type,
    email_length,
    dbms_lob.substr(email_layout,4000, (level - 1) * 4000 + 1) AS email_layout
  FROM
      my_clob
CONNECT BY
    level <= ceil(dbms_lob.getlength(email_layout) / 4000);

可能重复的