WRITE WORK [FILE] work-file-number
[VARIABLE]
operand1
|
This document covers the following topics:
For an explanation of the symbols used in the syntax diagram, see Syntax Symbols.
Related Statements: DEFINE WORK FILE | READ WORK FILE | CLOSE WORK FILE | DOWNLOAD PC FILE
Belongs to Function Group: Control of Work Files / PC Files
The WRITE WORK FILE statement is used to write records to a
physical sequential work file.
This statement can only be used within a program to be executed
under Com-plete, CICS, CMS, TSO or TIAM, or in batch mode. Appropriate JCL or
system commands must be executed to allocate the work file. For further
information, see the Operations documentation. For
information on work file assignments, see profile parameter
WORK in the
Parameter Reference.
It is possible to create a work file in one program or processing loop
and to read the same file in a subsequent independent processing loop or in a
subsequent program using the READ WORK
FILE statement.
Note:
For Unicode and code page support, see Work Files and Print Files on Mainframe
Platforms in the Unicode and Code Page
Support documentation.
Operand Definition Table:
| Operand | Possible Structure | Possible Formats | Referencing Permitted | Dynamic Definition | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| operand1 | C | S | A | G | A | U | N | P | I | F | B | D | T | L | C | G | yes | no | ||
Note:
Neither Format C nor Format G is valid for Natural
Connection.
Syntax Element Description:
Fields written with a WRITE WORK FILE statement are
represented in the external file according to their internal definition. No
editing is performed on the field values.
For fields of format A and B, the number of bytes in the external file is the same as the internal length definition as defined in the Natural program. No editing is performed and a decimal point is not represented in the value.
For fields of format N, the number of bytes on the external file is the sum of internal positions before and after the decimal point. The decimal point is not represented on the external file.
For fields of format P, the number of bytes on the external file is the sum of positions before and after the decimal point, plus 1 for the sign, divided by 2, rounded upward to a full byte.
Note:
No format conversion is performed for fields that are written to a
work file.
Examples of Field Representation:
| Field Definition | Output Record |
|---|---|
| #FIELD1 (A10) | 10 bytes |
| #FIELD2 (B15) | 15 bytes |
| #FIELD3 (N1.3) | 4 bytes |
| #FIELD4 (N0.7) | 7 bytes |
| #FIELD5 (P1.2) | 2 bytes |
| #FIELD6 (P6.0) | 4 bytes |
Note:
When the Natural system functions
AVER,
NAVER,
SUM or
TOTAL for
numeric fields (format N or P) are written to a work file, the internal length
of these fields is increased by one digit (for example, SUM of a
field of format P3 is increased to P4). This has to be taken into consideration
when reading the work file.
| Work File Type | Handling |
|---|---|
| UNFORMATTED | Work file type UNFORMATTED can be used to write variables whose size exceeds the maximum record length. See also Work File Access With Large and Dynamic Variables. |
| FORMATTED | A dynamic variable is written in its currently defined length (including length 0). |
** Example 'WWFEX1': WRITE WORK FILE
************************************************************************
DEFINE DATA LOCAL
1 EMPLOY-VIEW VIEW OF EMPLOYEES
2 PERSONNEL-ID
2 NAME
END-DEFINE
*
FIND EMPLOY-VIEW WITH CITY = 'LONDON'
WRITE WORK FILE 1
PERSONNEL-ID NAME
END-FIND
*
END