Introduction to JCL In mainframe environments, COBOL is one of the primary programming languages used to develop business applications. To execute COBOL programs in batch mode, mainframes use a controlling language called JCL (Job Control Language). JCL is used to tell the system what programs to execute, where to find those programs, what input data

This sample Program demonstrates on how to read a file and load it into an array and use that array to search reference data. Based on the data findings write it into the output file. Input Customer File – Customer Transactions file containing Customer Number, Name and Country code. Input Country code reference file –

SORT CARD, SUM Fields Option is used to do the following functionalities: Eliminate the Duplicates based on a specific field/vale position. Eliminate the duplicates from the entire record. SUM Up the values of specific positions while eliminating the Duplicates. SUM up the values of specific positions and place the Sum in a different position while

Requirement is to add a new field to the copybook CUSTCOPY & this copybook is the layout of a PS file. CUSTCOPY is being used in multiple programs.What is the impact Analysis Approch. First list down all the programs wherever this copybook is used.Identify the program where this new field needs to be used as

Converting VB file to FB or FB file to VB format is a common requirement. JCL SORT utility has the FTOV & VTOF options to convert the datasets as reuired. Converting from FB to VB //STEP1 EXEC PGM=SORT //SYSOUT DD SYSOUT=* //SORTIN DD DSN=MHY.TEST.SORTIN,DISP=SHR //SORTOT DD DSN=MHY.TEST.VB.OUT,DISP=(NEW,CATLG,DELETE), // UNIT=SYSDA,SPACE=(CYL,(10,5),RLSE) Notes: No need to give any

This sample program explains how to define a PS(Physical Sequential) File in different divisions and the steps to access it in the procedure division. Steps: Environment Division –> Input-Output Section –> File-Control . Here COBOL File name is given to the PS file and a linking between the cobol program and PS file is established.

Continue and Next Sentence in COBOL are No Operation statements which does nothing except to pass control to the statement after the scope terminators. But the difference is the place that it passes the control to. CONTINUE: Continue gives the control after the next explicit scope terminator. Explicit Scope terminators are END-IF, END-PERFORM, END-EVALUATE, etc.

Call is the COBOL Verb to transfer control to another program from a program. Simple CALL, call by reference, and call by content are the different types. CALL verb is used within the procedure division to transfer the control to the subprogram and once the subprogram processing is over, control comes back to the main

As DB2/SQL and COBOL field declarations are different, It is important to have Equivalanet COBOL data types to the corresponding DB2 table columns in COBOL programs to process the data correctly. More importantly, the precompiler uses the equivalent SQL data types for the declared Host variables. So if the host variable declaration is not correct,

These Questions were asked in the first round of Interviews for DBS, Hyderabad from Optimum solutions. How a transaction is defined in CICS? What is the use of TSQs & TDQs? What are the ways that a transaction can be auto-initiated? How to initiate a transaction using TDQ? Where does this need to be defined?