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Full Discussion: COBOL issue
Operating Systems Solaris COBOL issue Post 92527 by Jayaprakash T on Monday 12th of December 2005 10:12:48 AM
Old 12-12-2005
COBOL issue

Hi,

I am working on a Mainframe to UNIX replatforming project.
we are facing problems with COBOL COMP-3 fields. We are using the Mainframe emulator software to download the data which has COMP-3 fields and using it as input to the same COBOL programs which were copied from Mainframe and did the required changes to make it compatible to UNIX environment. when we tried to read the data, the COMP-3 fields are taking extra bytes data from other fields.

For example,

FIELD1 of COMP-3 type takes 4 bytes in Mainframe
FIELD2 of COMP-3 type takes 5 bytes in Mainframe

But when used in UNIX,

FIELD1 data has shown as 2 bytes in pysical file and since it occupies 4 bytes rest of the 2 bytes it is conceiving from the rest of the record. so obviously next field FIELD2 will have lost first two bytes of its data and hence it takes 5 bytes from the rest of the record.

Please suggest how to overcome this problem.

Thanks,
JP
 

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PX_GET_INFO(3)															    PX_GET_INFO(3)

px_get_info - Return lots of information about a paradox file

SYNOPSIS
array px_get_info (resource $pxdoc) DESCRIPTION
PARAMETERS
o $pxdoc - Resource identifier of the paradox database as returned by px_new(3). RETURN VALUES
Returns an associated array with lots of information about a paradox file. This array is likely to be extended in the future. o fileversion -Version of file multiplied by 10, e.g. 70. o tablename -Name of table as stored in the file. If the database was created by pxlib, then this will be the name of the file without the extension. o numrecords -Number of records in this table. o numfields -Number of fields in this table. o headersize -Number of bytes used for the header. This is usually 0x800. o recordsize -Number of bytes used for each record. This is the sum of all field sizes (available since version 1.4.2). o maxtablesize - This value multiplied by 0x400 is the size of a data block in bytes. The maximum number of records in a datablock is the integer part of (maxtablesize * 0x400 - 8) / recordsize. o numdatablocks - The number of data blocks in the file. Each data block contains a certain number of records which depends on the record size and the data block size (maxtablesize). Data blocks may not necessarily be completely filled. o numindexfields - Number of fields used for the primary index. The fields do always start with field number 1. o codepage - The DOS codepage which was used for encoding fields with character data. If the target encoding is not set with px_set_targeten- coding(3) this will be the encoding for character fields when records are being accessed with px_get_record(3) or px_retrieve_record(3). SEE ALSO
px_numfields(3), px_numrecords(3). PHP Documentation Group PX_GET_INFO(3)
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