Answer / tulasi harideep

LF doesn't hold any data it is just an access path.Data is present in a physical file which is shown by a logical file based on its key and access paths.When there is no data in PF we cant see any data in LF as well.

Hope you got my answer

what is the intractive job? what is the batch job ? how to change the batch job to interactive job?

2 Answers   Four soft,

---

WHAT IS THE DIFFERENCE BETWEEN 'COLHDG' AND 'ALIAS'?

5 Answers   Accenture,

---

what is error handling concepts in cl

3 Answers   Active Brains,

---

How many libraries can be there in a library list?

2 Answers  

---

one physical file can have how many max of logical files? what is the primary file?

3 Answers   Four soft,

---

I had created one physical file tell me command to enter data in to?

1 Answers  

---

Suppose if a physical file is having 1000 records, but i deleted 500 records from it. Here the concern is can the size of the file changes or it remains the same... kindly help me out with thorough xplanation.... Thanks in-advance...

6 Answers   ABC, TCS,

---

Why we create the Physical File Member?

5 Answers  

---

1. How can I create a LF using crtlf command based on a particular member in a multimember PF? Where I have to specify the member name? 2. How to differentiate between the types of join from a Join logical file DDS. Is it possible to have different types of Join Logical files? 3.Any performance difference between Opnqrf and Embedded SQL? When I should prefer Opnqryf and when SQL? 4. I know access path is the path chosen by the program to retrieve data. It can be of keyed access path or arrival sequence. *IMMED- *IMMED description says access path is updated each time record is added or deleted from a member. - What is updating here? *REBLD - The access path is completely rebuilt each time a file member is opened. The access path is maintained until the member is closed, then the access path is deleted. - I am not able to understand this completely. Could anyone explain these more clearly? 5.What is the purpose of using activation group. I know it is a resource allocator, but other than this any other benefits of using an activation group?

2 Answers   IBM,

---

How to read a pf in reverse(from last record to first) using cl?

0 Answers  

---

A pf containing 100 records... my query is how to display from 11th record in the pf?

3 Answers  

---

When u create a PF and did not fill up Maint parameter, then by default which access path will the system take & why

2 Answers   HCL,

---