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Data Files and File-List Processing

You must associate data maps for flat files or sequential data sets with a data file that defines the record types and the data in the data map.

To associate multiple data files with a data map, you can associate a data map with a file-list file. In a file-list file, you list multiple data files. PowerExchange concatenates and processes the data in the data files in the order in which you list the files.

File-list processing is supported for data maps defined with the ESDS, SEQ, and TAPE access methods only.

You must associate a data file with a data map for the following data sources:

DB2 unload files

Flat files

Sequential data sets

Tape data sets

User access method programs

VSAM ESDS, KSDS, and RRDS data sets

To determine the data file or files associated with a record, you can use the GetCurrentFileName function in an expression in a user-defined field in the data map.

PowerExchange cannot read large format sequential data sets. If you specify DSNTYPE=LARGE in the DD statement when you create the data set, PowerExchange cannot read it. Instead, you can specify DSNTYPE=EXTREQ in the DD statement.

Data Maps Overview

Associating Multiple Data Files with a Data Map

Step 1. Associate a Data File with a Data Map

Step 1. Associate a Data File with a Multiple-Record Data Map

GetCurrentFileName

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