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Mention that Oracle has jvm-dependent locale in date functions #12142

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MarkvanMents merged 2 commits into from
Nov 3, 2026
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Mention that Oracle has jvm-dependent locale in date functions #12142

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Mention that Oracle has jvm-dependent locale in date functions
dahfjkg Oct 26, 2026
5c2c751
Clarify language display behavior in Oracle and other DBs
MarkvanMents Nov 2, 2026
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1 change: 1 addition & 0 deletions content/en/docs/refguide/modeling/domain-model/oql/oql-expression-syntax.md
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Expand Up @@ -1096,6 +1096,7 @@ When an OQL query is executed, `DATEFORMAT` is converted to the corresponding da

1. Casing (`SUN 3:12 PM` in PostgreSQL, `Sun 3:12 PM` in SQL Server and `Sun 3:12 pm` in HSQLDB)
2. Year formatting (`YY` is formatted as `2026` in MySQL, as `26` in HSQLDB and PostgreSQL, and is not supported at all in SQL Server and SAP HANA).
3. In Oracle, the language in which month and day are displayed is tied to the default language of your app. In other databases, it is tied to the database locale.

{{% alert color="warning" %}}
Always test usages of `DATEFORMAT` with the database engine on which your app runs. OQL queries with `DATEFORMAT` may return different results in HSQLDB and in the production database.
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