ORA_DST_ERROR

Syntax

Purpose

ORA_DST_ERROR is useful when you are changing the time zone data file for your database. The function takes as an argument a datetime expression that resolves to a TIMESTAMP WITH TIME ZONE value or a VARRAY object that contains TIMESTAMP WITH TIME ZONE values, and indicates whether the datetime value will result in an error with the new time zone data. The return values are:

• 0: the datetime value does not result in an error with the new time zone data.

• 1878: the datetime value results in a "nonexisting time" error.

• 1883: the datetime value results in a "duplicate time" error.

This function can be issued only when changing the time zone data file of the database and upgrading the timestamp with the time zone data, and only between the execution of the DBMS_DST.BEGIN_PREPARE and the DBMS_DST.END_PREPARE procedures or between the execution of the DBMS_DST.BEGIN_UPGRADE and the DBMS_DST.END_UPGRADE procedures.