SLT as we know is one of demanding middleware technlogies today which can be very useful, though normally roadmap for SLT is HANA but in our case it was decided to use Oracle as target system and SAP ECC as the source. From SLT SP009 - it started supporting Oracle as target as well. Here is quick overview on few learnings -
Data Flow :
SAP ECC ->SLT- >Oracle DB
1) Sizing of Oracle DB Target -Memory size of Oracle DB need to be estimated correctly else often the issue occured where oracle system memory was full becaue of volume of data flowing from SAP ECC.Hence we needed to increase the memory size of Oracle to fix this issue and hence in longer term need to estimate size growth and accrodingly take actions.
2) Stats for Initial Load in SLT- For number of tables it was observed that initial loading stats information in LTRC T code was misisng and this was fixed when SAP suggested to apply SAP Notes but the same issue appeared again when we were loading other tables then SAP said this will be taken up in further release as this was major change.
3) Timestamp field Oracle requirement- There was requirement to add Timestamp field to tables in SLT, and send across data to Oracle in oracle time stamp format.This was acheived by passing hard coded value from SLT in Oracle time format and then script was written in Oracle which will overwrite this value with latest time stamp from Oracle.
So the timestamp generation in SLT was possible but while updating to Oracle data type changed to VarChar which was not required as user required it in TIMESTAMP data type of Oracle. Hence this was only posisble in Oracle system.
4)Language Text Issue- Certain Russian language characters were reported as question mark ? in Oracle as system could not recognize and hence to fix this Oracle was upgraded to have multi Lingual capability. Post that this was rectified.
Hope above helps.
thanks,
Nilesh