java.sql.SQLException:ORA-01843:调用过程时不是有效月份

时间:2014-08-29 13:43:53

标签: java spring oracle hibernate sysdate

我的应用程序有如下程序:

procedure get_full_data (list OUT sys_refcursor,id in number, 
                                   code in varchar2,type in varchar2) is
      year_in number;                                
begin
    year_in := to_number(to_char(to_date(sysdate,'DD-MON-RRRR'),'RRRR')); // line 628
        open list for
        select * from my_tab 
        where code_present = code AND to_number(substr(year,1,4)) in (year_in,year_in-1,year_in-2)
        and minth in(select max(month) from my_tab where code_present = code
                         and to_number(substr(year,1,4)) in (year_in,year_in-1,year_in-2)
                         group by substr(year,1,9))
        order by to_number(substr(year,1,4)) desc;
END get_full_data;

这是调用此过程的Java代码(我在这里使用hibernate):

List<MyBean> salesApproval=session.getNamedQuery("get_data").setInteger("id",my_id).setString("code",my_code).setString("type",my_type).list();

MyBean是该类保存过程返回的数据。

问题:
当我在windows系统上托管我的应用程序时,它可以正常工作 但是,当我在Linux Ubuntu 12.04上托管我的应用程序时,会出现以下错误:

java.sql.SQLException: ORA-01843: not a valid month
ORA-06512: at "db.proc_pack", line 628

程序中提到了行号628.

1 个答案:

答案 0 :(得分:1)

year_in := to_number(to_char(sysdate,'RRRR')); // line 628

SYSDATE已经返回日期,因此TO_DATE()转换就出错了。

要理解错误的原因.. TO_DATE(SYSDATE,'...')将成为TO_DATE('Date in Default Format','YOUR FORMAT');因此,它出错的可能性更大..

您的默认格式为会话的NLS_DATE_FORMAT!这取决于不同主机中的平台和会话参数!

示例:

SQL> SELECT value FROM   nls_database_parameters WHERE  parameter = 'NLS_DATE_FORMAT';

VALUE
--------------------------------------------------------------------------------
DD-MON-RR

SQL>  select to_date(sysdate,'MON-DD-RR') from dual;
 select to_date(sysdate,'MON-DD-RR') from dual
                *
ERROR at line 1:
ORA-01843: not a valid month

SQL> ALTER SESSION SET nls_date_format = 'MON-DD-RR';

Session altered.

SQL> select to_date(sysdate,'MON-DD-RR') from dual;

TO_DATE(S
---------
AUG-29-14

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