| Date Validation [message #2527] |
Tue, 23 July 2002 20:45  |
Alvin Yap
Messages: 1
Registered: July 2002
|
Junior Member |
|
|
Hi!
I have a html form which passes 3 values for the date, the month, date and year to my ASP form, joins them together into a mm/dd/yyyy format, which is accepted by oracle (using the to_date())
We found a bug in which when invalid dates are entered, e.g. 30th Feb or 31st september are entered, "ORA-01839: date not valid for month specified" error occurs.
Are there any methods/functions used to validate if the date entered to the system is a valid calender date?
Thank you!
Regards,
Alvin
|
|
|
|
| Re: Date Validation [message #2528 is a reply to message #2527] |
Tue, 23 July 2002 22:02  |
Todd Barry
Messages: 4819
Registered: August 2001
|
Senior Member |
|
|
A simple function can handle this for you. You can either have the function do the date conversion and return a null if the date is invalid, or the function can just return true or false to indicate a valid date.
create or replace function f_is_valid_date(
p_month in varchar2, p_day in varchar2, p_year in varchar2)
return date
is
begin
return (to_date(p_month || p_day || p_year, 'mmddyyyy'));
exception
when others then
return (null);
end;
/
or
create or replace function f_is_valid_date(
p_month in varchar2, p_day in varchar2, p_year in varchar2)
return boolean
is
v_date date;
begin
v_date := to_date(p_month || p_day || p_year, 'mmddyyyy');
return (true);
exception
when others then
return (false);
end;
/ |
|
|
|
] 
Blog
Search
Help
Members
Register
Login
Home
