Solution : https://service.sap.com/sap/support/notes/1406740 (SAP Service marketplace login required)
Key words : 
possibly affected array operations include array inserts, terms db2 db6 luw cli reason, sap-specific db2 fix packs, sql0913n  unsuccessful execution caused, open sql array insert, db2 cli code correction, fp 8 sap db2 version 9, fp 5 sap db2 version 9, array operation encountered anerror, sap application continues processing
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