Re: Numeric Data Type

"Huy Do" wrote:
  >Hi,
  >
  >Can anyone give me an explanation of the numeric field.
  >
  >for eg.
  >
  >does numeric(2,1) mean a number with 2 digits before the decimal point
  >and 1 after (22.1),
  >
  >or does it mean a number with a maximum of 2 digits and at least
  >1 of those digits have to be after the decimal point (2.1)


junk=# create table xx (n numeric(2,1));
CREATE
junk=# insert into xx values (2.1);
INSERT 6705225 1
junk=# insert into xx values (22.1);
ERROR:  overflow on numeric ABS(value) >= 10^1 for field with precision 2 scale 1
junk=# insert into xx values (22);
ERROR:  overflow on numeric ABS(value) >= 10^1 for field with precision 2 scale 1
junk=# insert into xx values (.22);
INSERT 6705226 1
junk=# insert into xx values (.222);
INSERT 6705227 1
junk=# select * from xx;
  n
-----
 2.1
 0.2
 0.2
(3 rows)

--
Oliver Elphick                                Oliver.Elphick@lfix.co.uk
Isle of Wight                              http://www.lfix.co.uk/oliver
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