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ORA-01843 "Not a Valid Month" Creating a table in Oracle 19

Hi all,

I'm trying to create a table that was already created in another Oracle 19c database (both databases have null values for NLS_DATE_FORMAT in parameters). When I try to create the table as partially shown below in my new Oracle 19 database. I get ORA-01843 - Not a valid Month. Is there a reason I'm missing that this is happening or how I can get around it the error to create the table as specified (the error of course happens on the UPDATE_DT field)?

CREATE TABLE DSD_IS.MMT_EQUIVALENCY_RULE
(
EQUIVALENCY_RULE_ID NUMBER(18,0) NOT NULL,

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