Обсуждение: Numeric type
Hi All, I have a double type in java that I am trying to store in postgresql as type numeric and it doesn't seem to like it. The error message is, function double(numeric) does not exist unable to identify a function that satisfies the given argument type you may need to add explicit type casts. If I just want to store the number as 'xx.xx', is 'numeric' the right postgresql type? thanks, Phil
On 27/01/2005 01:06 phil campaigne wrote: > Hi All, > I have a double type in java that I am trying to store in postgresql as > type numeric and it doesn't seem to like it. The error message is, > function double(numeric) does not exist > unable to identify a function that satisfies the given argument type > you may need to add explicit type casts. use getBigDecimal()/setBigDecimal() > > If I just want to store the number as 'xx.xx', is 'numeric' the right > postgresql type? It depends a lot on your precision requirements and whether or not small rounding errors matter in your application. For an accounting application, I would recommend using numeric and using BigDecimal in your Java code. If small rounding errors don't matter the you'll find using double precision (int8) in the databse and double in your Java code somewhat easier. HTH -- Paul Thomas +------------------------------+-------------------------------------------+ | Thomas Micro Systems Limited | Software Solutions for Business | | Computer Consultants | http://www.thomas-micro-systems-ltd.co.uk | +------------------------------+-------------------------------------------+