1. Database Reference
  2. Initialization Parameters
  3. Initialization Parameters
  4. NLS_DATE_LANGUAGE

1.213 NLS_DATE_LANGUAGE

NLS_DATE_LANGUAGE specifies the language to use for the spelling of day and month names and date abbreviations (a.m., p.m., AD, BC) returned by the TO_DATE and TO_CHAR functions.

Property Description

Parameter type

String

Syntax

NLS_DATE_LANGUAGE = language

Default value

Derived from NLS_LANGUAGE

Modifiable

ALTER SESSION

Modifiable in a PDB

Yes

Range of values

Any valid NLS_LANGUAGE value

Basic

No

Note:

The value of this initialization parameter NLS_DATE_LANGUAGE is used to initialize the session value of this parameter, which is the actual value referenced by the SQL query processing. This initial value is overridden by a client-side value if the client uses the Oracle JDBC driver or if the client is OCI-based and the NLS_LANG client setting (environment variable) is defined. The initialization parameter value is, therefore, usually ignored.

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