Why INDEX of an array cannot be displayed

srinivas12 · New User Joined: 11 Apr 2005 Posts: 6 Location: hyderabad

Hi,

Can anyone tell why index of an array cannot be displayed.
Also one more question.
We know that an ESDS cannot have index. Then where will the RBA's will be stored for random access...

learnmf · Active User Joined: 14 Mar 2005 Posts: 123

srinivas12 · New User Joined: 11 Apr 2005 Posts: 6 Location: hyderabad

Hi Chandra,

I accept that it'll not be declared in the data division.Then it should be taken care by system.So we can call it as a system variable.
system variables like date,timestamps can be declared without declaring them.Then why cant an index????

somasundaran_k · Active User Joined: 03 Jun 2003 Posts: 134

srinivas12

Since index refers to the memory address/register it can not be displayed directly by the DISPLAY statement.
If you want to DISPLAY it declare a working storage variable

srinivas12 · New User Joined: 11 Apr 2005 Posts: 6 Location: hyderabad

Hi Som,
Thanks a lot for the reply .Could u answer my second question.It was asked in one of the interview.What i feel that we calculate RBA to retrieve a particular record but we'll not store that.Correct me if i am wrong

somasundaran_k · Active User Joined: 03 Jun 2003 Posts: 134

srinivas12

You are right. We are not storing the value of RBA in the file. RBA is used to access ESDS randomly. And it has been caluculated using the length of the record and the record number. You can use IDCAMS to Print the RBA for a particular/all the record/s.
Say for getting the RBA of 100th record in an ESDS