“不是有效月”上的INSERT语句 [英] "Not a valid month" on an INSERT statement

问题描述

我有一个sql语句：

Insert into MYSCHEMA.TABLE1 (ID,MY_DATE) values (167600,to_timestamp('15-APR-14 01.36.58.803000000 PM','DD-MON-RR HH.MI.SS.FF AM'));

正如我看到的，这种格式是正确的（如这里）但是oracle返回错误 SQL错误：ORA-01843：不是有效的月份。任何想法如何解决这个问题？

As I read this format is correct (as described here) but oracle returns an error SQL Error: ORA-01843: not a valid month. Any idea how to solve this problem? I use Oracle Database 11b Express Edition.

推荐答案

除非在设置日期或时间戳列的表上有触发器，这将给出一些指示在完整的错误堆栈，它听起来像你的 NLS_DATE_LANGUAGE 不期望英语月份的缩写。

Unless you have a trigger on the table that is setting a date or timestamp column, which would give some indication in the full error stack, it sounds like your NLS_DATE_LANGUAGE is not expecting an English-language month abbreviation.

您拥有的英语有效性：

alter session set nls_timestamp_format = 'RR/MM/DD HH24:MI:SSXFF';
alter session set nls_date_language ='ENGLISH';

select to_timestamp('15-APR-14 01.36.58.803000000 PM',
  'DD-MON-RR HH.MI.SS.FF AM') as my_date
from dual;

MY_DATE                   
---------------------------
14/04/15 13:36:58.803000000 

但是如果您的会话的默认日期语言是波兰语（从您的个人资料中猜出）给出此错误 - 错误消息仍然为英语：

But if your session's default date language is Polish (guessing from your profile) it will give this error - with the error message still in English:

alter session set nls_date_language ='POLISH';

select to_timestamp('15-APR-14 01.36.58.803000000 PM',
  'DD-MON-RR HH.MI.SS.FF AM') as my_date
from dual;

SQL Error: ORA-01843: not a valid month
01843. 00000 -  "not a valid month"

如果您不想将会话设置为英语，您可以通过给予 可选的第三个参数to_timestamp（） ：

If you don't want to set your session to English you can override that for a specific statement by giving the optional third parameter to to_timestamp():

alter session set nls_date_language ='POLISH';

select to_timestamp('15-APR-14 01.36.58.803000000 PM',
  'DD-MON-RR HH.MI.SS.FF AM',
  'NLS_DATE_LANGUAGE=ENGLISH') as my_date
from dual;

MY_DATE                   
---------------------------
14/04/15 13:36:58.803000000 

您也可以使用月份数字代替月份名称，使用ANSI 时间戳文字语法：

You can also avoid the issue entirely by using month numbers instead of month names, or using the ANSI timestamp literal syntax:

select timestamp '2014-04-15 13:36:58.803' from dual;

TIMESTAMP'2014-04-1513:36:58.803'
---------------------------------
14/04/15 13:36:58.803000000       

这些方法也适用于日期列; to_date（）函数以相同的方式受NLS设置影响，并具有相同的可选日期语言参数。

These methods also all work for date columns; the to_date() function is affected by NLS settings in the same way and has the same optional date language parameter.

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