RPG Clear Operation
The RPG CLEAR operation is a handy way to initialize all the elements in a structure or variable. It sets numeric fields to zero, character fields to blanks and indicator fields to '0'. By specifying *NOKEY in factor 1, you can clear all fields in a DISK record format except key fields.
However, there is a catch. When the CLEAR operation is applied to a record format name, only output fields are affected. For file record formats with WORKSTN specified as the device in the file specification, only fields with a usage of output or both are affected by the CLEAR. Fields in DISK, SEQ or PRINTER file record formats are cleared only if those record formats are output in the program. Input-only fields are not affected.
This means that if you define a file for input-only in the file specification record, any attempt to CLEAR its record format will have no effect at all.
Business users want new applications now. Market and regulatory pressures require faster application updates and delivery into production. Your IBM i developers may be approaching retirement, and you see no sure way to fill their positions with experienced developers. In addition, you may be caught between maintaining your existing applications and the uncertainty of moving to something new.
IT managers hoping to find new IBM i talent are discovering that the pool of experienced RPG programmers and operators or administrators with intimate knowledge of the operating system and the applications that run on it is small. This begs the question: How will you manage the platform that supports such a big part of your business? This guide offers strategies and software suggestions to help you plan IT staffing and resources and smooth the transition after your AS/400 talent retires. Read on to learn:
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