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Storing large numbers in oracle

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Storing large numbers in oracle Database Management forum discussing non-database specific SQL. Structured Query Language was designed to be a robust and standardized language for manipulating relational databases.

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  #1  
Old October 4th, 2002, 01:48 PM
dreamz dreamz is offline
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Question Storing large numbers in oracle
my friend is facing a problem and as i haven't done much work in oracle so thought to post question here.... these are her words:

i have to store a phone number in database and i declared it as "phone number(20,0)", but the problem is that whenever a number having width of more than 15 digits is stored oracle converts the number in exponent and stores so when i retrieve i get first 15 digits correct and after that all 0s. one option is to store phone number as a string but i dun want to do it until n unless its the only way out......so is there ne way of storing the number of size 20 without it being converted to exponent???
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Old October 4th, 2002, 03:01 PM
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Maybe you should try storing it in a CHAR or VARCHAR field instead?
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Old October 4th, 2002, 08:49 PM
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Re: Storing large numbers in oracle
Quote:
Originally posted by dreamz
my friend is facing a problem and as i haven't done much work in oracle so thought to post question here.... these are her words:

i have to store a phone number in database and i declared it as "phone number(20,0)", but the problem is that whenever a number having width of more than 15 digits is stored oracle converts the number in exponent and stores so when i retrieve i get first 15 digits correct and after that all 0s. one option is to store phone number as a string but i dun want to do it until n unless its the only way out......so is there ne way of storing the number of size 20 without it being converted to exponent???


I have done a lot of work with Oracle and I find this VERY hard to believe, it's probably the way it is being formatted when she displays it.
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Old October 6th, 2002, 06:03 PM
merl merl is offline
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Uh, I just had a 2 minute play, with this code:

PHP Code:
 SQL> create table tryx1(
  2           val NUMBER(30)
  3  );

Table created.

SQL> 
SQL> insert into tryx1 (val) values (12345678901234567890);

1 row created.

SQL> select val, to_char(val, '99999999999999999999') from tryx1;

       VAL TO_CHAR(VAL,'99999999
---------- ---------------------
1.2346E+19  12345678901234567890

SQL> 
SQL> drop table tryx1;

Table dropped. 


So it looks like there's no problem with Oracle's handling of large numbers.

Perhaps it's the mechanism you're using to read out the data?
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