Before migrating to HANA platform, the custom developments in SAP need to be remediated for HANA compatibility as explained in SAP Note 1912445.
Steps to be followed:
1. Identify the code where modifications are required.
Execute SCI for custom developments with check variants as 'FUNCTIONAL_DB' and 'FUNCTIONAL_DB_ADDITION' .
Results of this execution will have different message codes whose handling is explained below.
2. Modification required for each message code.
a. Message code SEL_CUST.
Reason : These error occur due to implicit sorting on cluster table.
Solution : Add explicit sorting to the select query.
b. Message code SEL_POOL.
Reason : These error occur due to implicit sorting on Pool Table.
Solution: Add explicit sorting to the query.
c. Message code BIN_SEARCH
Reason : This error is due to reading unsorted internal table with binary search.
Solution : Sort internal table to be read with fields specified in binary search explicitly.
d. Message code LOOP_AT.
Reason: This error is due to AT NEW/ENDAT operation on unsorted internal table.
Solution : Sort internal table on fields specified in AT NEW/ENDAT operation explicitly.
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