Answer / vidhya

A physical file can be joined to itself to read records that are formed by combining two or more records from the PF itself.
For example
You use a self join when a table references data in itself.

E.g., an Employee table may have a SupervisorID column that points to the employee that is the boss of the current employee.

To query the data and get information for both people in one row, you could self join like this:

select e1.EmployeeID,
e1.FirstName,
e1.LastName,
e1.SupervisorID,
e2.FirstName as SupervisorFirstName,
e2.LastName as SupervisorLastName
from Employee e1
left outer join Employee e2 on e1.SupervisorID = e2.EmployeeID

can any one tell me what is meant by PSSR? Kindly elaborate it...

1 Answers  

---

What is FORMAT keyword and its use?

0 Answers  

---

Last statement of any RPG pgm is LR?

5 Answers  

---

Why we create the Physical File Member?

5 Answers  

---

how to update physical file using logucal file with example

1 Answers   Wipro,

---

What is the difference between access path and open data path?

0 Answers  

---

what is dynslt and why we use that command when do we use command

2 Answers   Active Brains, UHG,

---

Suppose I have a pf, it contains 5 members, how to access particular member data from logical file? What is the use of member in pf?

0 Answers  

---

what is the purpus of the chain and setll and setgt ?

2 Answers   Four soft,

---

can we concate fileds in physical file? If yes how can we do?

5 Answers   Patni,

---

how to update physical files using normal logical file

4 Answers  

---

what is multiple member pf

1 Answers   Active Brains,

---