RPG400 Interview Questions
Questions Answers Views Company eMail

Assume my file has 100 records and I want to see only first 10 records. Is this possible through lf?

1 1206

Suppose my file has 10 fields and I want to make the 2nd field zeros in all records. And assume I have millions of records and I dont want to read each record and update the desired field with 0. Any other way to do this in one step operation?

1 1586

What is file identifier where we can use?

632

Explain mdt?

653

What is the difference between copybooks and subprocedures in as400?

797

Can a indexed file be accessed in arrival sequence in RPG?

1 1279

How do u design a physical file, when you have 2 Unique fields like for eg in A student file student ID and student examination no both are unique

539

How to write record if no field or the field are different in physical file in rpgle ?

471

When we have a file with Duplicate records and I want to read the unique record from the file. For example a file containing Emp Name as 'Ram' and there are 3 entries of it. So how to read a unique record from File?

488

How to read a record from file where there is multiple record occurrence is available?

1 1197

Assume 2 users are using the same file and first user updates some record in the file. Will the 2nd user will be able to see the updated record or not?

500

1. If there are two programs using same file and 2 users are using the file at the same time and what can be done to allow them both to access? 2. How can remove lock from the file for accessing it by both users?

474

If I have a file with 5 record and that file has 2 Key field and I want to read the unique record of the file then how can we achieve it?

1 1153


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Un-Answered Questions { RPG400 }

1. If there are two programs using same file and 2 users are using the file at the same time and what can be done to allow them both to access? 2. How can remove lock from the file for accessing it by both users?

474


Assume 2 users are using the same file and first user updates some record in the file. Will the 2nd user will be able to see the updated record or not?

500


what is the procedure and explain about real time scenario.

1465


What is the purpose of record level identifier?

716


Q:Hi all,i want accurate answer with code using in built functions.please sent me code as soon as posible. I have program nmed PGM1 which '' RETRIEVE Current production date''should correctly default the production date for the user who is issuing raw materials to the manufacturing.The production date can be different from the celendra date. However, the program does not make the correct adjustment for all manufacturing plants. there is a parameter which determines the production start time e.g. 07:00 if the system time precedes this,the program subtracts one from the celendra day.This work fine when the celendar day starts after production day as it does in England,the system should be adding one to the celendar day during the overlap. unfortunately the program was desined to assumed the celendar day always starts before the production day. Change required in the program: Change the PROGRAM PGM1 to use the new parrameter to decide whether to add or subtract 1 from the celendar day when determining the production date.

1750






Suppose we have one database file and it is used by 5 programs and in 3 program we have to add some records in datbase file s what is the impact on other program?

1437


How would display prime numbers using CL program?

5666


do you use message subfiles? What are the necessary keywords required coding a message subfile?

675


what is the use of sflnxtchg?

793


RETRIVING DELETED RECORDS :- I'm frequently asked how to retrieve deleted records from an unjournaled physical file when the deleted records have not yet been removed from the file. Utility UNDEL lets you undelete records in a physical file. This public domain program is available in CISC and RISC versions, and the complete source code is available for download at: UNDEL for AS/400 Save File (RISC): http://www.as400network.com/sharewarefiles/undelris.zip UNDEL for AS/400 Save File (CISC): http://www.as400network.com/sharewarefiles/undel.zip UNDEL for AS/400 Save File (Source code): http://www.as400network.com/sharewarefiles/undelsrc.zip The utility takes advantage of the fact that deleted records in physical files are only flagged as deleted, and the record data still exists until it is overwritten or the file is reorganized with a utility such as RGZPFM. UNDEL simply reads the deleted record, then reuses the record by writing over it with the new record (thus eliminating the flag for the deleted record). Some homegrown and commercial utilities copy the file containing undeleted records to a save file, then use a program to read the save file, which contains live and undeleted records, to a file to undelete the records. The UNDEL utility is superior to the SAVF technique because there's no need to copy the file to a save file, which is especially important for really large files. When run, UNDEL displays the physical file records in their unformatted, raw text form. You can either position the display to a given relative record number or use F19 or F20 to find the previous and next deleted record, respectively. The utility also includes online help, which is almost unheard of for free utilities. Other utilities include the ability to undelete records. You can use the RTVDLTRCD command in the old QUSRTOOL (no longer supported by IBM). QUSRTOOL is now a commercial product called TAA Productivity Tools ( http://www.taatool.com ). The free file editor WRKDBF has a built-in undelete capability ( http://www.wrkdbf.com ), and several commercial file editors can undelete records. For a complete list of file editors, go to http://www.sourcebook400.com, select "Programmer Tools" under "Product Category," then select "File Editors."

14103


How to call one program from another program in RPG? please help me with the code

1245


can you debug ile rpg program using isdb?

729


how do you use commitment control in rpg?

743


We have job which is running as batch. It takes atleast 06 hours to complete tht job. But I wanna do tht job with in 3 hours?

750


what is file information data structure?

1347