To answer this question, we need to understand the control parameters for data transfer in the table ROIDOCPRMS in the BW source system. Let's go through each statement to determine which ones are correct:
A. The field MAXSIZE is the maximum number of records which can be transferred to BW in a single packet.
This statement is incorrect. The MAXSIZE field in the ROIDOCPRMS table is not used to determine the maximum number of records per packet. It represents the size in KB which is used to calculate the number of records per data packet.
B. The field MAXSIZE is the size in KB which is used to calculate the number of records per data packet.
This statement is correct. The MAXSIZE field in the ROIDOCPRMS table is the size in KB that is used to calculate the number of records per data packet. It helps in determining the packet size for data transfer.
C. MAXLINES is the maximum number of records which can be transferred to BW per data load.
This statement is not mentioned in the question, so we cannot determine if it is correct or incorrect based on the given information.
D. If the number of data records per packet exceeds MAXLINES value, the extraction process fails.
This statement is not mentioned in the question, so we cannot determine if it is correct or incorrect based on the given information.
Based on the given information, the correct statements are:
B. The field MAXSIZE is the size in KB which is used to calculate the number of records per data packet.
Therefore, the correct answer is B.