Example: Increasing the decimal precision for result fields in Query for iSeries

Figure 5 has a result field with a current maximum precision of 31 (length) and 2 (decimal positions). The decimal precision was derived from the calculation 31-29+9-9.

Define Result Fields

Type definitions using field names or constants and operators, press Enter.

Operators: +, -, *, /, SUBSTR, , DATE...

Field

Expression

Column Heading

Len

Dec

RESULTA___

PRN299A/PRN299B__________________

____________________

__

__

 

_________________________________

____________________

 

 

 

_________________________________

____________________

 

 

__________

_________________________________

____________________

__

__

 

_________________________________

____________________

 

 

 

_________________________________

____________________

 

 

__________

_________________________________

____________________

__

__

 

_________________________________

____________________

 

 

 

_________________________________

____________________

 

 

Bottom

_______________________________________________________________________________

Field

Text

Len

Dec

PRN299A

Field with precision of 29,9

29

9

PRN299B

Field with precision of 29,9

29

9

 

 

 

Bottom

F3=Exit

F5=Report

F9=Insert

F11=Display names only

F12=Cancel

F13=Layout

F20=Reorganize

F24=More keys

Figure 5. Decimal Precision Using Default

Note: The presentation length for RESULTA a would be 31,9. You can see this by pressing F13=Layout.

To increase the decimal precision for the result field (RESULTA):

1.Assign each input field (PRN299A, PRN299B) directly to a result field.

2.Replace the input fields used in the original result field expression with the new result fields (RESULT269, RESULT295).

3.Change the corresponding length (Len) and decimal positions (Dec) for the new result fields so that the decimal precision sufficiently increases (see the previously listed formulas) for the original result field (RESULTA).

In Figure 6 on page 191the RESULTA decimal precision is changed from 2 to 9. The new decimal precision was derived from the calculation 31-26+9-5.

190Query for iSeries Use V5R2

Page 202
Image 202
IBM SC41-5210-04 manual PRN299A, PRN299B