File Management - IBM

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with 4 decimal positions is copied to a zoned decimal field of length 6 with 3
decimal positions; 00115.1109 becomes 115.110.
If significant digits must be truncated to the left of the decimal point, the value is
not copied, and the field is set to its default value (either the parameter value of
the DFT keyword, if specified, or zero, if the DFT keyword is not specified). Also,
if significance will be lost because a floating-point numeric value exponent is too
large, the to-file field is set to its default value.
When you are mapping numeric fields for which the field that is being copied is
shorter than the field into which the copy is made, the field being copied is
padded with zeros on the left and right of the decimal point. For example, a
packed decimal field of length 7 with 5 decimal positions is copied to a packed
decimal field of length 10 with 6 decimal positions; 99.99998 becomes 0099.999980.
Table 15. Field Conversions. (This table is not applicable to FMTOPT(*CVTFLOAT) or FMTOPT(*NULLFLAGS), where
the from-file data is defined by the to-file.)
To Character
To Binary (No
To Binary
or
Decimals
Field (with
From Hexadecimal To Packed To Zoned Positions) To Floating Decimals
Field
Field Decimal Field Decimal Field Field
Point Field Positions)
Character or
Hexadecimal
X
Packed X X X X
Zoned X X X X
Binary (no
decimal
positions)
X X X X
Floating Point X X X X
Binary (with
decimal
positions)
X 1
:
1
A binary numeric field with one or more decimal positions can be copied only to a binary field with the
same number of decimal positions.
Adding or changing source file sequence number and date fields
(SRCOPT and SRCSEQ Parameters)
120 File Management V4R5
You can perform additions or changes to sequence number fields and date fields
sequence number and date fields when you are:
v “Copying device source files to database source files”
v “Copying database source files to device source files” on page 121
v “Copying database source files to database source files” on page 121
Copying device source files to database source files
When you copy from a device source file to a database source file, the system adds
sequence number fields and date fields at the start of the records. The system
assigns the first record a sequence number of 1.00, the next 2.00, and so on,
increasing in increments of 1.00. If more than 9999 records are copied, the sequence