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How to check date of birth is keyed in


How to check date of birth is keyed in

By : user2956094
Date : November 22 2020, 10:54 AM
To fix this issue i would like to know how to check if user has entered their date of birth in the registration form. The day and month are in a drop down list and the year is in text box form. , you can use HTML5's required attribute:
code :
<input type=text required/>

<select required></select>
<option value="">Month</option>


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CHECK constraint on date of birth?

CHECK constraint on date of birth?


By : user3864466
Date : March 29 2020, 07:55 AM
I hope this helps you . Check constraints must be deterministic. That is, a particular row must always satisfy the constraint or it must always fail to satisfy the constraint. But SYSDATE is inherently non-deterministic since the returned value is constantly changing. Thus, you cannot define a CHECK constraint that calls SYSDATE or any other user-defined function.
If you try to reference SYSDATE in the constraint definition, you'll get an error
code :
SQL> ed
Wrote file afiedt.buf

  1  create table t(
  2      birth_date date check( birth_date between date '1900-01-01' and
  3                                                sysdate )
  4* )
SQL> /
                                              sysdate )
                                              *
ERROR at line 3:
ORA-02436: date or system variable wrongly specified in CHECK constraint
SQL> ed
Wrote file afiedt.buf

  1   create table t(
  2       birth_date date check( birth_date between date '1900-01-01' and
  3                                                 date '2011-12-08' )
  4*  )
SQL> /

Table created.
CREATE OR REPLACE TRIGGER check_birth_date
  BEFORE INSERT OR UPDATE ON employee
  FOR EACH ROW
BEGIN
  IF( :new.emp_dob < date '1900-01-01' or 
      :new.emp_dob > sysdate )
  THEN
    RAISE_APPLICATION_ERROR( 
      -20001, 
      'EMployee date of birth must be later than Jan 1, 1900 and earlier than today' );
  END IF;
END;
Linq to entity Check if date of birth is between given set of date ranges(EF6)

Linq to entity Check if date of birth is between given set of date ranges(EF6)


By : REorient
Date : March 29 2020, 07:55 AM
this will help This is a carefully crafted query which jumps between Linq to EF and Linq to Objects.
code :
List<Tuple<DateTime,DateTime>> dateranges=.......;
IEnumerable<IQueryable<Person>> queries = from d in dateranges
                                         let startDate = d.Item1
                                         let endDate = d.Item2
              select (context.Person.Where(p => p.Birthday >= startDate && p.Birthday <= enDate));
IQueryable<Person> query = queries.Aggregate(Queryable.Concat);
List<Tuple<DateTime,DateTime>> dateranges=.......;
List<FutureQuery<Person>> queries = from d in dateranges
                                         let startDate = d.Item1
                                         let endDate = d.Item2
              select (context.Person.Where(p => p.Birthday >= startDate && p.Birthday <= enDate).Future()).ToList();
IEnumerable<Person> query = queries.SelectMany(x =>);
Check for Birth Date

Check for Birth Date


By : Rishikesh Yadav
Date : March 29 2020, 07:55 AM
To fix the issue you can do The wildcard % will match any character even numbers, try updating your code to add another / after it like this:
code :
'" + DateTime.Now.ToString("d/M") + "/%'
Validate date of birth and and check age

Validate date of birth and and check age


By : Horizons
Date : March 29 2020, 07:55 AM
this one helps. The PHP function checkdate is what you're looking for.
How to check whether a Birth Date entered is valid

How to check whether a Birth Date entered is valid


By : Jack Noone
Date : March 29 2020, 07:55 AM
it should still fix some issue A user enters his birth date in a jTextfield in the yyyy/mm/dd and I want to make sure that he enters it correctly like that and also that it is a real date. this is my code so far: , mm is minutes. MM is months:
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