9.131 LOGICAL_KEY
Note: Built-In Function Rules Usage Options
Specifies or re-specifies the name of a field that is a key of a logical view / file previously defined by the LOGICAL_VIEW Built-In Function.
Prior to using this Built-In Function an edit session must be commenced by using the START_FILE_EDIT Built-In Function .
Allowable argument values and adopted default values are as described in Detailed Logical View Maintenance in the LANSA for i User Guide.
Warning: This Built-In Function cannot be used for a file of type "OTHER".
This is a Specialized Built-In Function for use in a Development Environment only.
Arguments
|
No
|
Type
|
Req/ Opt
|
Description
|
Min Len
|
Max Len
|
Min Dec
|
Max Dec
|
|
1
|
A
|
Req
|
Name of logical view to which key is to belong.
|
1
|
10
|
|
|
|
2
|
A
|
Req
|
Name of key field. Must have been previously specified as a field in the file by using the FILE_FIELD Built-In Function.
|
1
|
10
|
|
|
|
3
|
N
|
Opt
|
Optional sequencing number. Used to sequence key fields. If not specified keys are sequenced in the same order as they are presented.
|
1
|
5
|
0
|
0
|
|
4
|
A
|
Opt
|
Ascending or Descending key. Must be A or D. Default is A.
|
1
|
1
|
|
|
|
5
|
A
|
Opt
|
Signed, Unsigned or Absolute value ordering of numeric key. Must be S,U or A. Default is U for alphas and S for numerics.
|
1
|
1
|
|
|
|
Return Values
|
No
|
Type
|
Req/ Opt
|
Description
|
Min Len
|
Max Len
|
Min Dec
|
Max Dec
|
|
1
|
A
|
Req
|
Return code
OK = key defined
ER = fatal error detected
In case of "ER" return code error message(s) are issued automatically and the edit session ended without commitment.
|
2
|
2
|
|
|
|
