ORA-20000：ORU-10027：buffer overflow,limit of 2000 bytes.

  ORA-20000：ORU-10027：buffer overflow,limit of 2000 bytes. 

 

這是因為在過程中用到了dbms_output.put_line()在服務器端輸出信息，而serveroutput   的size默認定義為10000bytes。 

修改一下size應該就可以了 

set serveroutput on 30000

 

ORA-20000 string 

Cause:The stored procedure RAISE_APPLICATION_ERROR was called which causes this error to be generated. 

Action:Correct the problem as described in the error message or contact the application administrator or database administrator for more information.

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寫存儲過程時遇到一個問題，執行dbms_output.putline(變量名)的時候，報錯
ORA-20000：ORU-10027：buffer overflow,limit of 2000 bytes.

$ oerr ora 20000
20000, 00000, "%s"
// *Cause:  The stored procedure 'raise_application_error'
//          was called which causes this error to be generated.
// *Action: Correct the problem as described in the error message or contact
//          the application administrator or DBA for more information.

應該是變量大小超過了dbms_output.putline的最大值。

解決辦法：
SQL>set   serveroutput   on   size   1000000   

##2014-07-18添加
解決辦法2：
在begin后面加上DBMS_OUTPUT.ENABLE(buffer_size => null) ，表示輸出buffer不受限制。

如下面的語句是為了獲取創建索引語句
set serveroutput on
declare
  v_sql    varchar2(1000);
  v_result varchar2(2000);
begin
  for cur_sql in (select 'select dbms_metadata.get_ddl(''INDEX'',''' ||
                         T.INDEX_NAME || ''',''XXXX'') FROM DUAL' as f_sql
                    from v$object_usage t
                   where t.monitoring = 'YES'
                     AND T.USED = 'NO') loop
    begin
      DBMS_OUTPUT.ENABLE(buffer_size => null); --表示輸出buffer不受限制
      execute immediate cur_sql.f_sql
        into v_result;
      --DBMS_OUTPUT.PUT_LINE(cur_sql.f_sql);
      DBMS_OUTPUT.PUT_LINE(v_result);
    end;
  end loop;
end;
/