ORA-01843: not a valid month 错误的解决方案

 服务器上的 Oracle 10g 使用中文字符集,所以按照如下的日期格式插入时,会提示你 ORA-01843 的错误。

SQL> Insert into BOOKSHELF_CHECKOUT

values
      ('DORAH TALBOT','MY LEDGER','15-FEB-02','03-MAR-02');
 
 
      ORA-01843: not a valid month

要解决这个问题,可以在修改当前会话的 NLS_DATE_LANGUAGE 和 NLS_DATE_FORMAT,方法如下

SQL>alter session set nls_date_language='AMERICAN';
 
       Session altered

当然如果要自定义日期格式,可以使用以下命令自定义:

SQL> alter session set nls_date_format = 'DD-MON-YYYY';

Session altered

然后再次Insert into:

SQL> Insert into BOOKSHELF_CHECKOUT

values 

('GERHARDT KENTGEN','MIDNIGHT MAGIC','05-FEB-02','10-FEB-02');
 
        1 row inserted

没有报错,ok了。

NOTE:需要说明和注意的是,这两条命令是在当前会话下设置,只能在当前会话下生效,使用SHOW PARAMETER命令是看不到的,如果只是在当前需修改使用这两条命令就可以了,如果要全局修改就只能修改参数文件夹了.

 

转载自:http://bxffeng.blog.163.com/blog/static/9023844920104911855512/

ORA-01843: ????? WITH BaseData AS ( SELECT equipmentid, loadport, txntimestamp, state, CASE WHEN state = 'ReadyToLoad' THEN bindingfoup ELSE loadedfoup END AS foup_id, loadedfoup, bindingfoup FROM DR01.sdb_tb_smic_loadport_history WHERE equipmentid IN ('EDPTC01','EDPTC05') AND txntimestamp BETWEEN TO_TIMESTAMP('20250730 0000000', 'YYYYMMDD HH24MISSFF') AND TO_TIMESTAMP('20250731 2330000', 'YYYYMMDD HH24MISSFF') AND state IN ('ReadyToLoad', 'LoadCompleted', 'ReadyToUnload') AND ( (state = 'ReadyToLoad' AND bindingfoup IS NOT NULL) OR (state IN ('LoadCompleted','ReadyToUnload') AND loadedfoup IS NOT NULL) ) ), RankedData AS ( SELECT equipmentid, loadport, txntimestamp, state, foup_id, loadedfoup, bindingfoup, ROW_NUMBER() OVER ( PARTITION BY equipmentid, loadport, foup_id ORDER BY txntimestamp ) AS rn FROM BaseData WHERE foup_id IS NOT NULL ), ReadyToUnloadRows AS ( SELECT equipmentid, loadport, txntimestamp AS time4, loadedfoup, LAG(txntimestamp, 1) OVER ( PARTITION BY equipmentid, loadport, foup_id ORDER BY txntimestamp ) AS time3_candidate, LAG(state, 1) OVER ( PARTITION BY equipmentid, loadport, foup_id ORDER BY txntimestamp ) AS prev1_state, LAG(txntimestamp, 2) OVER ( PARTITION BY equipmentid, loadport, foup_id ORDER BY txntimestamp ) AS time2_candidate, LAG(state, 2) OVER ( PARTITION BY equipmentid, loadport, foup_id ORDER BY txntimestamp ) AS prev2_state FROM RankedData WHERE state = 'ReadyToUnload' ) SELECT equipmentid, loadport, time4, time3_candidate AS time3, time2_candidate AS time2 FROM ReadyToUnloadRows WHERE prev1_state = 'LoadCompleted' AND prev2_state = 'ReadyToLoad'
11-20
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