ORA-01843 ORA-01843: 指定した月が無効です。は、SQLエンジンが現在のNLS_DATE_LANGUAGEで入力文字列の月の値を認識できないことを意味します。この投稿では、以下に示すORA-01843のエラーパターンについて説明します。 一致しない月の値 スペルミスの月の値 外国の月の値 ORA-01843 一致しない月の値 月の値に何も問題がないように見えるかもしれませんが、使用した月の値はOracleで受け入れられない場合があります。例を見てみましょう。 それから、日本語で8月を意味する”八月”という用語を使用しました。 SQL> select TO_DATE(‘八月 30, 2019’, ‘Month dd, YYYY’) from dual; select TO_DATE(‘八月 30, 2019’, ‘Month dd, YYYY’) from dual * 行1でエラーが発生しました。: ORA-01843: 指定した月が無効です。 有効な月の値はどこにありますか？ “八月”も日本語の8月の正しい表現ですが、Oracleには無効です。このようなエラーパターンを解決するには、異なるNLS_DATE_LANGUAGEの有効で正しい月の値を知る必要があります。この場合、”八月”は有効ではなく、”8月”は有効です。 SQL> select TO_DATE(‘8月 30, 2019’, ‘Month dd, YYYY’) from dual; 19-08-30 ORA-01843 スペルミスの月の値 […]
ORA-01843 ORA-01843: not a valid month means that SQL engine cannot recognize the month value of your input string under current NLS_DATE_LANGUAGE. In this post, I will talk about some error patterns of ORA-01843 listed below: Misspelled Month Value Unmatched Month Value Foreign Month Value ORA-01843 due to Misspelled Month Value There might be typos […]
In this post, I listed valid day values of some NLS_DATE_LANGUAGE other than AMERICAN and ENGLISH for you as a reference in order to solve ORA-01846: not a valid day of the week in SQL statements with TO_DATE function. As for valid values of week days, you may check: Valid Month Values for Different NLS_DATE_LANGUAGE. […]
In this post, I listed valid month values for some NLS_DATE_LANGUAGE other than AMERICAN and ENGLISH for you as a reference in order to solve ORA-01843: not a valid month in SQL statements with TO_DATE function. As for valid values of week days, you may check: Valid Day Values of Week for Different NLS_DATE_LANGUAGE. Europe […]
Oracle TO_DATE Function by Examples Oracle TO_DATE function can convert a date time string into a value acceptable for converting string into datetime type. There’re 4 major components in Oracle TO_DATE function input arguments. Date time string (char) This is the main input variable that you shall use. This is mandatory in TO_DATE function argument […]
NLS_TERRITORY to NLS_DATE_FORMAT Here in this post is the mapping table for showing NLS_TERRITORY to their respective NLS_DATE_FORMAT. In some situations, you may need this mapping table to solve globalization problems. For instances, ORA-01861 and ORA-12705. Please note that, NLS_DATE_FORMAT is not derived from NLS_LANGUAGE, in fact, it’s derived from NLS_TERRITORY. Therefore, any conflicts between […]
NLS_LANGUAGE to NLS_TERRITORY Here in this post is the mapping table for showing NLS_LANGUAGE to their respective NLS_TERRITORY. In some situations, you may need this mapping table to solve globalization problems. In order to change NLS_TERRITORY, you can change NLS_LANGUAGE by setting the environment variable NLS_LANG at OS-level, database sessions will use the value to […]
NLS_LANGUAGE to NLS_DATE_FORMAT Here in this post is the mapping table for showing NLS_LANGUAGE to their respective NLS_DATE_FORMAT. In some situations, you may need this mapping table to solve globalization problems. For instances, ORA-01861 and ORA-12705. In order to change NLS_DATE_FORMAT, you can change NLS_LANGUAGE by setting the environment variable NLS_LANG at OS-level, then NLS_TERRITORY […]
Backup of Stored Procedure Usually, source codes of programming unit should be version-controlled by the developer team. But if they have never carried out their job, we can also do it by ourselves. In this post, I leveraged SQL scripts that are from Ask Tom to export source codes of all programming units of a […]
What is NLS_LANG? What is NLS_LANG? NLS_LANG is an environment variable in the client’s environment, it’s also a notation that can notify database what NLS (National Language Support) parameters should be used for current session. The format of NLS_LANG is such: <LANGUAGE>_<TERRITORY>.<CHARACTERSET> There’re 3 components in the environment variable NLS_LANG: LANGUAGE: It is equivalent to […]
