How to use MEMORY ID

REPORT  ZTEST4_09.
 
DATA STR TYPE C LENGTH 100.
STR = 'HAI RAVI'.
EXPORT STR TO MEMORY ID 'CHAT'.


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REPORT  ZTEST5_09.

DATA: STR TYPE C LENGTH 100.
SUBMIT ZTEST4_09 AND RETURN.
IMPORT STR FROM MEMORY ID 'CHAT'.

WRITE:/ 'FROM MEMORY :', STR.