Oracle 获取错误ORA-06502:PL/SQL:数字或值错误

我越来越

ORA-06502：PL/SQL:以下代码中的数字或值错误：

以下是数据类型：

roll_no        - NUMBER(10,0)
admission_date - TIMESTAMP(6)
record_state   - CLOB

---

您需要使用

to_clob

将字符串转换为clob，然后可以按如下方式合并两个clob：

record_state := record_state || 
                to_clob(
                        'Inserting record Entry for student: ' || roll_no || ' for date: ' || To_Char(admission_date,'yyyymmdd') || ' @ ' || TO_CHAR(SYSDATE, 'YYYY-MM-DD HH24:MI:SS') || CHR(10)
                       );

---

干杯

如果您有lob对象，我建议您使用库

---

你试过一个接一个地删除表达式直到找到有问题的表达式吗？

record_state := record_state || 
                to_clob(
                        'Inserting record Entry for student: ' || roll_no || ' for date: ' || To_Char(admission_date,'yyyymmdd') || ' @ ' || TO_CHAR(SYSDATE, 'YYYY-MM-DD HH24:MI:SS') || CHR(10)
                       );

DECLARE
  record_state  CLOB;  
BEGIN
  DBMS_LOB.CREATETEMPORARY(record_state);  

  -- here you should make sure that the string is not too long (max 32K), otherwise the concatenation with pipes will not work. There will be an exception.
  DBMS_LOB.append (record_state , 'Inserting record Entry for student: ' || roll_no || ' for date: ' || To_Char(admission_date,'yyyymmdd') || ' @ ' || TO_CHAR(SYSDATE, 'YYYY-MM-DD HH24:MI:SS') || CHR(10)); 

  -- do more operations
  dbms_lob.freetemporary(record_state);

END ;
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