- The data structure from mainframe will come in a COBOL copy book format (.cpy). Sample copybook content is pasted below.
01 SALES-RECORD.
03 HDR-DATA.
05
HDR-REC-TYPE PIC X.
05
HDR-STORE PIC X(02).
03 STORE-DATA.
05
STORE-NAME PIC X(30).
05
STORE-ADDR1 PIC X(30).
05
STORE-CITY PIC X(30).
03 DETAIL-DATA REDEFINES STORE-DATA.
05
DETAIL-ITEM PIC 9(9).
05
DETAIL-DESC PIC X(30).
05
DETAIL-PRICE PIC 9(4)V99.
05
DETAIL-QTY PIC 9(5).
05
SUPPLIER-INFO OCCURS 4 TIMES.
10
SUPPLIER-CODE PIC XX.
10
SUPPLIER-NAME PIC X(8).
- We need to add the standard header part and footer part to the copybook and save it as .cbl file which can be imported to Informatica as source definition.
Header:
IDENTIFICATION
DIVISION.
PROGRAM-ID. COPYBOOK.
ENVIRONMENT DIVISION.
SELECT
SALES ASSIGN
TO F1.
DATA DIVISION.
FILE SECTION.
FD SALES.
Here ‘SALES’
will be the source Name.
Footer:
WORKING-STORAGE
SECTION.
ROCEDURE DIVISION.
STOP RUN.
- Save the file as Sales.cbl and Import to informatica as shown below.
- The source will be imported like this.
- The mapping will look like this where Cobol source will have a Normalizer by default in place of Source Qualifier.
Important things to remember: COBOL copybook will have Redefines and occurrences in the
structure. Occurrences we can be removed by multiplying the same column that many times.
