Answer / abhishek kumar

In most of the cases files(*file) will be locked.
Reason: If any program is using that particular file.

Answer / samul

File object locked when file open in update mode or file
allocated excl in cl using cmd ALLOBJ.

Answer / sankar prosad mohanta

Abhishek is correct, but we can avoid this file locking,
specifying 'N' in 53 position of File Description Spec,
where the file is defined in the program.

Answer / keshar jain

@Shankar:
We can use N on position 53 in CHAIN if file is in Update
mode. For other mode we can't specify N.

Answer / ravi

When a file is declared in UF mode. U - Update, F - Fully procedural file.

When you do a read, it locks the particular record making it unavailable for any other programs. This is to protect the data integrity.

Once you do the update, the lock will be released. If you do not want the lock, you can specify Read(N), but you cannot update. You can also UNLCK opcode to release the lock.

Also, each time you update, you need to lock it.

If you do ALCOBJ you can lock it exclusively. This will not even allow basic functions on the object like read/display. And vice versa too. Any *SHRRD locks like read/display will not allow exclusive lock.

what is the necessary command needed before OPNQRYF and why?

5 Answers  

1.How to load Records of a Physical file(PF) in the reverse order, in CL program?

2 Answers   Cap Gemini,

Hi friends, Can you give the solution for the below mention simple code.and explain.what is output D CHR1 S 4A INZ('PEN') D CHR2 S 10A INZ('MYGET') D CHR3 S 8A INZ('GOOD') D CHR4 S 22A INZ C MOVEL CHR1 CHR4 C MOVE CHR2 CHR4 C EVAL CHR4=CHR3 C MOVE CHR1 CHR4

4 Answers  

IN RLU what are the record level keyword is used?

5 Answers   iGate, TCS,

1.How you will find the program is batch or online in cl pgm? 2.How you will end the batch pgm when the job runs? write an logic? 3.In wich command the option *drop is used?

2 Answers   TCS,

What is the syntax of passing parameters to a procedure by value?

1 Answers  

If there are 1000 member(PGM type) in a SRC file. How can we compile in a CL program? ( It need to be done in a loop)?

1 Answers  

what is the necessary keyword needed to scroll subfile records?

0 Answers   IBM,

Can somebody tell me that, Is it possible to read all the member of PF without OVRDBF?

6 Answers  

Anyone help me for the below question:- If problem/error occur in *PSSR subroutine,how should I handel it in RPG program.

1 Answers  

In how many ways a session/device error occurs,,, and what is the remedy for it?

3 Answers  

As Packed veriable store 2 digits in 1 byte and ZONE variable store 1 digit in 1 byte... Please tell me when we have to use Packed and Zone variable...?

1 Answers