Igor

Sorry but Oracle uses 7 bytes for a date

century (1 byte)
year (1 byte)
month (1 byte)
day (1 byte)
hour (1 byte)
minute (1 byte)
second (1 byte)

SQL> desc d
Name Null? Type
----------------------------------------- -------- ----------------------------
D DATE


SQL> col dump format a40
SQL> select to_char(d, 'dd mon rrrr hh24:mi:ss'), dump(d) dump from d;

TO_CHAR(D,'DDMONRRRR DUMP
-------------------- ----------------------------------------
05 may 0001 15:30:45 Typ=12 Len=7: 100,101,5,5,16,31,46
05 may 0100 15:30:45 Typ=12 Len=7: 101,100,5,5,16,31,46
05 may 0500 15:30:45 Typ=12 Len=7: 105,100,5,5,16,31,46
05 may 1000 15:30:45 Typ=12 Len=7: 110,100,5,5,16,31,46
05 may 1500 15:30:45 Typ=12 Len=7: 115,100,5,5,16,31,46
05 may 1999 15:30:45 Typ=12 Len=7: 119,199,5,5,16,31,46
05 may 2000 15:30:45 Typ=12 Len=7: 120,100,5,5,16,31,46
05 may 2100 15:30:45 Typ=12 Len=7: 121,100,5,5,16,31,46
05 may 2500 15:30:45 Typ=12 Len=7: 125,100,5,5,16,31,46
05 may 2600 15:30:45 Typ=12 Len=7: 126,100,5,5,16,31,46
05 may 2900 15:30:45 Typ=12 Len=7: 129,100,5,5,16,31,46
05 may 3000 15:30:45 Typ=12 Len=7: 130,100,5,5,16,31,46

12 rows selected.

/peter

Igor Neyman wrote:

You gather it wrong :)
Oracle stores date in 8 bytes, one for each: year, month, day, hour,
min, ... etc.

Igor Neyman, OCP DBA
[EMAIL PROTECTED]



-----Original Message-----
Droogendyk, Harry
Sent: Friday, January 23, 2004 12:40 PM
To: Multiple recipients of list ORACLE-L

Folks:

From what I gather, Oracle stores dates as the number of elapsed days
since
Jan 1, 1968.  When I query a column of type 'DATE', it returns me the
default format, dd-mon-yy.  I know I can use
to_char(date_col,'YYYYMMDD')
etc... to define many output formats.

What can I do to get the raw internal value of the date?  i.e. today is
13172.

Thanks.


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Best regards/Venlig hilsen

/*Peter Gram*/ <mailto:[EMAIL PROTECTED]>

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