FreeLists / oracle-l / RE: Date datatype

["Aragon, Gabriel (GE Commercial Finance)" <gabriel.aragon@xxxxxx>]

According to the FM, the function doesn't work with date field, only =
with timestamp with time zone data type:

sqlplus> create table t1 (d date, tz timestamp with time zone);

Table created.

sqlplus> insert into t1 values (sysdate, sysdate);

1 row created.

sqlplus> select extract(minute from d) from t1;
select extract(minute from d) from t1
                           *
ERROR at line 1:
ORA-30076: invalid extract field for extract source

sqlplus> select extract(minute from tz) from t1;

EXTRACT(MINUTEFROMTZ)
---------------------
                   19

but with date part of the field, there is no problem:

sqlplus> select extract(year from d) from t1;

EXTRACT(YEARFROMD)
------------------
              2005

sqlplus> select extract(year from tz) from t1;

EXTRACT(YEARFROMTZ)
-------------------
               2005

Gabriel

-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx]On Behalf Of Anwar Khudhair
Sent: Martes, 05 de Abril de 2005 12:53 p.m.
To: Christian Antognini
Cc: oracle-l
Subject: Re: Date datatype


Hi,
> 2.. I'm trying the EXTRACT function. Year, month and
> day worked fine but not the hour, minute and
> second. How can I do it?

It should work. What does it mean "... but not..."?=20
If you copy/paste an example it's easier to help you...

To extract the year: Select extract(year from Date_Column) from =
My_table.

To extract the hour: Select extract(hour from Date_Column) from =
My_table. May be wrong sentance?

> 3.. I tried to add a numeric value from another
> field to a date column and it worked for the
> date. Is it possible to do the same thing with the time?

Yes. E.g. add 1/24 to add one hour... i.e. you should do some math...

As you said 'If you copy/paste an example it's easier to help' me.

Thanks.

HTH
Chris

--
http://www.freelists.org/webpage/oracle-l
--
http://www.freelists.org/webpage/oracle-l