Sometimes we observe session and device errors when working with display files in the RPG program. How can we resolve this session and device error and what caused this error to occur?
Please provide examples of common session and device errors and their solutions.
session device error can occur in the following situation
SFLRCDNBRorSFLSIZfield has an incorrect record number.EXFMTexecution and theSFLDSPindication is set *ON.9999records for theLoad All subfileon the Display file.We usually get the error
Session or device error occurred in file SubfileName (C G D F)when we try to display an empty subfile by setting the indicator ON associated with theSFLDSPkeyword. So, setting theSFLDSPindicator off would resolve this session or device error. You may also get this session or device error if you do not include theSFLDSPCTLkeyword in your subfile control record format.This session or device error can also occur when the field and position in DDS are incorrect and display a window subfile in an incorrect position.