TAW_10_1 chapter 15, program calls and memory management

Question 1

When using call transaction, how can messages from the called program be returned

Answer 1

By specifying MESSAGES INTO itmessages

where itmessages is of type BDCMSGCOLL

Question 2

When calling a transaction from a program, how can the execution of the called program be checked?

Answer 2

sy-subrc, or look for E messages in the message table

Question 3

How can parameters be passed when calling a tcode from within a program.

Answer 3

Use a table of type BDCDATA

Question 4

What are the five fields of BDCDATA

Answer 4

PROGRAM
DYNPRO
DYNBEGIN
FNAM
FVAL

Question 5

In a BDC, the MODE can be A,E, or N. Can this be used in call transaction as well?

Answer 5

Yes it can

Question 6

Are ABAP objects generated?

Answer 6

Yes, they are generated by the compiler

Question 7

What is the PXA area of working memory

Answer 7

Where non-modifiable parts of the program are stored one time for use by all users

Question 8

What is stored in the roll area of working memory?

Answer 8

The modifiable parts of the program (variables) by user/execution.

Question 9

What transaction can be used to determine if a program is in the PXA?

Answer 9

ST02->detailed analysis->program->buffered objects

Question 10

An external session is related to each gui window. How many external sessions can be opened at once

Answer 10

Up to 16, but the parameter is set to a default of 6

Question 11

What is a program group

Answer 11

A program group is a main program and possible other called programs/function groups/classes that form an internal session

Question 12

If the main program uses function group AB and function group BC. And function group AB uses function group BC, how many copies of function group BC exists in the program group?

Answer 12

Just one and that can cause issues because bot the program and AB can modify BC data. Best in this case to use a class and create an separate instances

Question 13

What transaction is used to analyze external sessions

Answer 13

SM04 and AL08 for external and internal sessions

Question 14

How can data be shared between programs running in different program groups?

Answer 14

Using the selection screen of the program being called
SAP memory
ABAP memory
Database tables
local files on presentation server

Question 15

What is the difference in scope of ABAP memory and SAP memory?

Answer 15

ABAP memory is external session dependent (per program group)
SAP memory is user session dependent and can be used across external sessions

Question 16

How is ABAP memory used

Answer 16

EXPORT 
 = 
 = 
TO MEMORY ID 'MYMEMORY'
And then
IMPORT
 = 
 = 
FROM MEMORY ID 'MYMEMORY'

Question 17

How long can the Memory ID name be?

Answer 17

60 characters

Question 18

What is SAP memory?

Answer 18

PIDs