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\d)$or if you are loading a table, consider using DML error logging to reject the bad dates. v=8WV15Bz QIto for an tutorial Or..it simply and use a function. Actually In the procedure the date format is validated in the update statement .

Hi, I requirement a requirement to validate date format. I have to check whether given date is in (MM/DD/YYY) format.

CREATE OR REPLACE FUNCTION MY2DATE (p_str IN VARCHAR2 ,format_picture IN VARCHAR2) RETURN DATEISBEGIN RETURN TO_DATE(p_str, format_picture); EXCEPTION WHEN OTHERS THEN RETURN NULL; END;/Function Created.

Elapsed: .78 [email protected] tom, I'm using isdate function provided by you (pasted below) ********** create or replace function isdate ( p_string in varchar2, p_fmt in varchar2 := null) return varchar2 as l_date date; begin l_date := to_date(p_string,p_fmt); return 'TRUE'; exception when others then return 'FALSE'; end; ********** But to my surpise it is taking '20092007' and '2007/2007' to be a valid date and converting it to a date but I want them to be reported as error pl refer below SQLHi Tom, I was just wondering if there is an SQL only solution to validate date values? We have a scenario where 1.5 million records in a staging table have to be validated and date value is stored as a VARCHAR2 column in 'YYYYMMDD' format.

Thanks for your Help Srini create or replace function my2date( p_str in varchar2 ) return date 2 is 3 begin 4 return to_date( p_str ); 5 exception 6 when others then 7 return null; 8 end; 9 /Function created.

And then in sqlldr, use:....date_field "my2date(:date_field)",.... select to_date('01-JAN-05') from dual; TO_DATE('---------01-JAN-051 row selected.

Check out all our database development sessions at OOW19 Thanks for the question, Srinivasan.

How could you restrict a list of cells to only allow entering date format in Excel worksheet?

Then you could check the month/day mappings individually..now you've got leap years to look out.

Then you head into the digits case when incoming_date like '__/__/____'and substr(incoming_date,1,2) between '01' and '12'and substr(incoming_date,4,2) between '01' and '31'and substr(incoming_date,7,4) between '1900' and '3000'but you're still miles off a true valid check (because April 31st is not a valid date).

^(((((0[1-9])|(1\d)|(2[0-8]))\/((0[1-9])|(1[0-2])))|((31\/((0[13578])|(1[02])))|((29|30)\/((0[1,3-9])|(1[0-2])))))\/((20[0-9][0-9])|(19[0-9][0-9])))|((29\/02\/(19|20)(([02468][048])|([13579][26]))))$ Hi Use this following Regular Expression Details, This will support leap year also.

^(((0[1-9]|[12]\d|3[01])\/(0[13578]|1[02])\/((19|[2-9]\d)\d))|((0[1-9]|[12]\d|30)\/(0[13456789]|1[012])\/((19|[2-9]\d)\d))|((0[1-9]|1\d|2[0-8])\/02\/((19|[2-9]\d)\d))|(29\/02\/((1[6-9]|[2-9]\d)(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00))))$ Matches [29/02/2000], [30/04/2003], [01/01/2003] Non-Matches [29/02/2001], [], [1/1/1899] or check this link Script/0520__Regular-Expressions/Use Regular Good Luck google will give you 20400 results for your query

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