List and explain the different type of data structures?
Answer / pratap thakur
* Data area data structure: When the data area is defined in an RPG/400 program as a data area data structure, its data is implicitly retrieved for processing and written back at the end of the program. In the data area data structure, letter "U" must be entered to define the data structure as a data area data structure.
* File information data structure: A file information data structure provides exception/error information that may be occurred when processing a file during program execution.This type of data structure contains pre defined sub fields that identify
* The name of the file for which the error occurred
* The record processed when the error occurred
* The operation being processed when the error occurred
* The status code number
* The RPG/400 routine in which the error occurred. Exception errors may be controlled by testing for an error code in the *STATUS field which is included in a file information data structure.Specifically, keywords including *FILE, *RECORD, *OPCODE, *STATUS, *ROUTINE provide the previously named information.
* Program status data structure: Program status data structure however identity exception/errors that are generated in the program by RPG/400 operations and not by a file.Note that any code greater than 00099 is flagged as an exception/error.Four keywords - *STATUS, *ROUTINE, *PROGRAM, *PARMS are supported by a program status data structure.
| Is This Answer Correct ? | 0 Yes | 0 No |
Q. 1.What would be structure of CL PGM. 2. What are the levels of CL PGM. 3.How many files can be defined in new CLLE program?
What is logical file in as400? What are the types of logical file?
which are the figurative constants used in rpg?
what is the function of cpyf command?
What is FCFO, FIFO, LIFO in Database environment ?
http default port 80 is used by some other production http service. How can I create an http instance on another port to run cgidev2 and my future cgi developments?
How do you check object lock
Pose, there are 100 records in the file.i need to retrieve all the records matching/equal to the particular name field. How can we do the above using search criteria other than using the if cond?
how to declare a constant variable in the freeformat?
What is program status data structure(psds) in as400?
What is the use of OVRPRTF ?
what is the use of data structures?