If you execute * SELECT * round((length(13)+0)/2) + 1 FROM DUAL we will get only 2 bytes as lenth(13) return 2 and add devided by 2 it gives 1 +1 = 2.
If it is 8bytes, then length(13) should not be there. On Tue, Aug 10, 2010 at 11:05 PM, ddf <orat...@msn.com> wrote: > Comments embedded. > > On Aug 10, 9:43 pm, swaroop gowda <swaroop.t...@gmail.com> wrote: > > Hi, > > > > Can any one please let me know number bytes for NUMBER(13,2) and just for > > NUMBER data type. > > > > NUMBER(13,2) bytes == round((length(13)+0)/2) + 1 == 8 bytes > NUMBER bytes == round((length(38)+0)/2)+1 == 20 bytes > > General formula: round((length(p)+s)/2)+1, p== precision, s==0 for > positive numbers, s==1 for negative numbers. 0 and negative infinity > consume 1 byte; positive infinity consumes 2 bytes. > > > > > Also I would like to know how to calculate number bytes for each and > every > > data type. > > > Start reading here: > > > http://download.oracle.com/docs/cd/B19306_01/server.102/b14220/datatype.htm#i16209 > > > > > -- > > Thanks & Regards > > Swaroop Thailuru Swamy > > > David Fitzjarrell > > -- > You received this message because you are subscribed to the Google > Groups "Oracle PL/SQL" group. > To post to this group, send email to Oracle-PLSQL@googlegroups.com > To unsubscribe from this group, send email to > oracle-plsql-unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/Oracle-PLSQL?hl=en > -- Thanks & Regards Swaroop Thailuru Swamy -- You received this message because you are subscribed to the Google Groups "Oracle PL/SQL" group. To post to this group, send email to Oracle-PLSQL@googlegroups.com To unsubscribe from this group, send email to oracle-plsql-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/Oracle-PLSQL?hl=en
