How to update physical file using logical file with example?

0 Answers  

---

Q.1 how to implement the commitment control. 2.how to control commitment control from external program.

7 Answers   IBM,

---

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,

---

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,

---

i have a PF,it contains 5 members,how to access particular member data from logical file ?and what is the use of member in PF

3 Answers  

---

---

how to see number of logical files depending on a pf?...can we declare more than 20 logical files from a single pf? is it possible

4 Answers   ocbc,

---

what is error handling concepts in cl

3 Answers   Active Brains,

---

What is the interactive job? What is the batch job? How to change the batch job to interactive job?

0 Answers  

---

What is FORMAT keyword and its use?

0 Answers  

---

what is the difference between adding keys & constraints into a phisical file

4 Answers   HSBC,

---

can any one pls tell me some differences between a LF and command OPNQRYF?

3 Answers   Accenture, Cognizant, eFunds,

---

I have a pf, it contains 5 members, how to access particular member data from logical file?

0 Answers  

---