How to handle leap year date in the query ?

Question

Dear Exparts,
Hope you are fine.
Here is my banner,
Oracle Database 10g Enterprise Edition Release 10.2.0.3.0 - ProdI have a date field name birth_date where i store date of birth. I need to pick date of birth in a given range. For example
BIRTH_DATE
01-FEB-1980
12-FEB-1984
29-FEB-1992
01-MAR-1986
01-APR-1986
22-APR-1988
01-MAR-1992My searching parameter is
brith_date between 01/02/13 and 01/04/13I want the record
01-FEB-1980
12-FEB-1984
29-FEB-1992
01-MAR-1986
01-APR-1986Here is the script
create table
CREATE TABLE DATE_OF_BIRTH
  BIRTH_DATE DATE
);data insert
insert into DATE_OF_BIRTH
values(to_date('01-FEB-1980','DD-MON-RRRR'));
insert into DATE_OF_BIRTH
values(to_date('12-FEB-1984','DD-MON-RRRR'));
insert into DATE_OF_BIRTH
values(to_date('29-FEB-1992','DD-MON-RRRR'));
insert into DATE_OF_BIRTH
values(to_date('01-MAR-1986','DD-MON-RRRR'));
insert into DATE_OF_BIRTH
values(to_date('01-APR-1986','DD-MON-RRRR'));Thanks in advance... (thanks to Frank Kulash)
ask2Learn
Edited by: Asked to Learn on Feb 24, 2013 7:40 PM

Answer 1

Hi,
Asked to Learn wrote:
Dear Exparts,
Hope you are fine.
Here is my banner,
Oracle Database 10g Enterprise Edition Release 10.2.0.3.0 - ProdI have a date field name birth_date where i store date of birth. I need to pick date of birth in a given range. For example
BIRTH_DATE
01-FEB-1980
12-FEB-1984
29-FEB-1992
01-MAR-1986
01-APR-1986
22-APR-1988
01-MAR-1992My searching parameter is
brith_date between 01/02/13 and 01/04/13I want the record
01-FEB-1980
12-FEB-1984
29-FEB-1992
01-MAR-1986
01-APR-1986Here is the script
create table
CREATE TABLE DATE_OF_BIRTH
BIRTH_DATE DATE
);data insert
insert into DATE_OF_BIRTH
values('01-FEB-1980');
insert into DATE_OF_BIRTH
values('12-FEB-1984');
insert into DATE_OF_BIRTH
values('29-FEB-1992');
insert into DATE_OF_BIRTH
values('01-MAR-1986');
insert into DATE_OF_BIRTH
values('01-APR-1986');
You defined the column as a DATE, which is correct, but you're trying to insert VARCHAR2 values, such as '01-FEB-1980' into that column.
Use TO_DATE to convert a VARCHAR2 into a DATE:
insert into DATE_OF_BIRTH (birth_date)
values ( TO_DATE ('01-FEB-1980', 'DD-MON'YYYY'));or use DATE literals:
insert into DATE_OF_BIRTH (birth_date)
values ( DATE '1980-02-01);The same goes for queries.