My java/groovy program receives table names and table fields from the user input, it queries the tables in SAP and returns its contents.
The user input may concern the tables
CDHDR. After reading the SAP documentations and googling, I found these are tables storing change document logs. But I did not find any remote call functions that can be used in java to perform this kind of queries.
Then I used the deprecated RFC Function Module
RFC_READ_TABLE and tried to build up customized queries only depending on this RFC. However, I found if the number of desired fields I passed to this RFC are more than 2, I always got the
DATA_BUFFER_EXCEEDED error even if I limit the max rows.
I am not authorized to be an ABAP developer in the SAP system and can not add any FM to existing systems, so I can only write code to accomplish this requirement in JAVA.
Am I doing something wrong? Could you give me some hints on that issue?