Rewrite or update line in WORK FILE

i do create, write lines and read
in WORK FILE format SAG.

I can find and change a record in a file SAG or some other format work-files?

Think of Natural Work files as tape files. Natural has no equivalent to COBOL’s REWRITE statement. To change even one WORK record means that you have to rewrite the entire file.

WORK FILES has no type that can then be rewritten?

Only with Adabas
or other databases?

Yes, work files are sequential files, not direct access.