Micro Focus Studio Enterprise Edition for Windows > Programming > Mainframe Programming > JCL Support > Utility Programs > Emulations of Mainframe Utilities > VSAM Access Method Services (MFJAMS) > Working with Empty Data Sets

Working with Empty Data Sets

In previous versions of this software an empty VSAM data set, for example a data set that had just been defined, did not show as being empty. As a result, some of the IDCAMS commands that MFJAMS emulates, for example REPRO and PRINT, processed zero records and generated a condition code of 0.

This behavior differs from the corresponding mainframe IDCAMS utility for newly-defined VSAM data sets which generates I/O errors with a condition code of 12.

The behavior of MFJAMS is now consistent with that of IDCAMS.

Note:

Empty VSAM data sets created by previous versions of this software still generate a condition code of 0 in such cases. To ensure that these data sets are handled in a manner that is consistent with IDCAMS behavior you must delete and then redefine them.