IBM AS400 Interview Questions
Questions Answers Views Company eMail

difference between CHAIN and READE?

HCL,

8 31171

Hello friends, i am new to AS/400. Can any one help me in AS/400 i meant say can you send me some FAQS and interview questions.

IBM, HanceInc,

7 11423

What is the benefit of using Externally Described files over Internally Described?

IBM, Patni,

19 23021




What is the difference between a Physical File & a Logical?

Accenture, IBM, ACS,

28 83654

What is SDA used for?

7 7962

What are Triggers?

Ordain Solutions, Seabus Solutions,

14 17318

Where would you use Override Data Base File?

4 10498

What controls which printer a report goes to?

Wipro,

4 7333

What are the values of NUM1 and NUM2 after executing the following code? CLONO1NO2NO3 Factorl÷÷+OpcdeFactor2+÷+ResultLenDHHiLoEq C MOVE *LOVAL NUM1 50 C MOVE *J-fIVAL NtJM2 52

IBM, Fiserv,

2 6681

1. Which Built-In-Function will you use to achieve the following functionality? CLONO1NO2NO3 Factorl÷÷+OpcdeFactor2++÷ResultLenDHHiLoEq C QTY IFLT *ZERO C QTY MULT -1 QTY C ENDIF a) %ABS b) %TRIM c) %TRIMS d) %UNS

IBM,

3 6498

What is the significance of UDATE?

IBM,

5 12907

A particular job executing on the iS is not behaving as expected and is operating in an environment in which it can be debugged. What commands would you use to debug and observe the program?

IBM,

2 8232

What is the compilation option that has to he specified while compiling an RPC program which uses a file having date data type field?

HSBC, IBM,

3 9479

2. Which of the following statement(s) explains the difference(s) between the /INCLUDE and ICOPY directives? a.) No difference, they function the same b.) ACOPY cannot be used as a conditional directive c.) IINCLUDE files cannot contain embedded SQL d.) Nesting /TNCLUDE directives is not allowed

IBM,

2 6078

3. Given the DOS Specification below and the following information: • Indicator 50 is off • No records have been written to the subfile What will be the result if the EXFMT operation code is performed on the record format CTLR? A R SUBFL A DESCRIP 101 6 1ODSPATR(UL) A DFT(’NOT FOUND’) A R CTLR SFLCTL(SUBFL) A N50 SFLDSP A SFLDSPCTL A SFLINZ A 67 SFIJEND A SFLSIZ(13) A SFLPAG(12) A ACCOUNTNO 100 S 10 a.) Only AccountNo will display b.) SUBFL will be initialized with 13 blank records c.) An I/O exception error will occur d.) The screen will display 12 records with ‘NOT FOUND’

IBM,

4 7016







Un-Answered Questions { IBM AS400 }

How to add 2 new fields in a file? How many ways are there in as400?

89


How many libraries can be there in a library list?

215


Set on command is used for closed all opened files , initialize var and release resource , return cmd is used for return to calling program but my req. Is dnt close opened files and resource must released while doing transactions , how can i do this...?

661


i am using non join multiple format my 3 database file is like that pf97 R REC ENAME ETENNO ESTATUS K ENAME pf98 R REC1 ENAME ESAL K ENAME PF99 R REC3 ENAME CRDCARD EID K EID & MY NON JOIN LOGICAL FILE IS ALSO SAME EXCEPT RECORD NAMES BEFORE I TRIED WITH 2 FILES SO ITS SAYS ERROR I.E.(Key field attributes must be same as for previous formats. ) SO I CHANGED KEYFIELD ACCORDING TO PF SO ITS WORKING BUT AFTER ADDING 3 FILES ITS SAYING SAME ERROR . I DONT KNOW I NEW IN AS400 PLLZ HELP ME I HAVE ONE MORE QUE. CANT BE USE DIFFERENT KEYFIELD (NOT ACCORDING TO PF) IN NON JOIN LOGICAL FILE.

165


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."

10697






give an eg of ACQ-(ACQUIRE),BIT OFF,BIT ON,DEALLOC,DUMP,FEOD,FORCE,MHHZO,MHLZO,MHLLZO,MLHZO,REL,RESET,TESTZ,TESTB,TESTN----GIVE SMALL EXAMPLE TO THE OPCODES...TO UNDERSTAND FUNCTIONING...........

2284


what is meant by object lock requests,held locks and locks waiting to be applied(wrkobjlck) why should we apply for locks.Please explain sir.

4189


Hi Viewers can any body explain me how to update and ahange the already existed data in physical file using subfile ? please explain me with the code if possible?

2560


. How to know why the OPM job is in MSGWAIT state?..WHAT COULD BE THE REASON FOR it?

5044


WHAT IS FERERENTIAL INTRIGRITY ?

185


What is the diff bw PF/LF Name and their Record format name? what is restriction in record format then file name?

1599


What are the different types of model available in coolplex

1247


If I want to execute Sftp commands(LS & GET) stored in Physical file from CL program automatically...Can u Plz tell me how can I do this?...How the script will look?? THANX FOR NY HELP...

1451


WHAT is STORED PROCEDURE CONCEPT IN AS400 WITH EXAMPLE?

1283


Hi,Can any body give the code for the below mentioned quetion.?Im trying to get coding in with easily inderstanding.Plese give me the coding for this? 1.How would you achieve this requirement with out using RPG/RPGLE pgm,but by using only CL?Read a database file and display file contents on the screen when enter key pressed the next record should be displayed on screen.When the last record is reached or when F3 key is pressed the program should exit if the file is empty,a message should be displayed indicate that there are no records to display. Database file Name=EMPDBF Fields in EMPDBF to be displayed on screen Employee Number- EMPNUM(5,0) Employee Name- EMPNAM(30,A) Employee Address-EMP ADDR(50 A)

1035