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DB2 V7 MVS - Decimal Column Insertion Truncate or Round

Posted on 2004-10-25
Medium Priority
Last Modified: 2011-09-20
The standard option for insertion to a decimal column is (appears) to be truncate  
is there anyway to alter this to round?


A Int
B Decimal(6,2)

insert into mytab (A,B)
Values (1,1.009)

results in     A=1 , B=1.00

or do i need to specify      
insert into mytab (A,B)
Values (1,round(1.009,2))

which does give     A=1 , B=1.01


Question by:Lowfatspread
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LVL 13

Accepted Solution

ghp7000 earned 200 total points
ID: 12412018
either define the column as decimal 6,3, no truncation will take place or yes, use the round function, but why would you want to round the decimal number if it has a precision of 3?
Usually, rounding takes place in the select statement, not in the insert
LVL 50

Author Comment

ID: 12432410
thanks ghp7000

unfortunately I'm working developer who are arms length from a package which
has some "wonderful" rules for data types etc...

there input source is from a business who rely on excell spreadsheets and don't
understand that a displayed value isn't necessarily the same as the value that gets

so there's politics involved...

i was just wondering if an option existed.

LVL 13

Expert Comment

ID: 12435399
not that im flogging a dead horse, but perhaps I misunderstood your question-if the input source has a precision of 3, then presumably the customer wants that level of precision (they input numbers into their excel spreadsheet using a precision of 3), so why would you want to change the value that would be displayed? or change the value that is inserted into the db? I"m thinking the only reason you would want to do this is perhaps because the form doesn't support a field that has a precision of 3, in which case you should have the form changed?

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