Solution : https://service.sap.com/sap/support/notes/956065 (SAP Service marketplace login required)
Key words : 
/isqc/c_qygr_qy /isqc/c_qygr_ra /isqc/c_qy_cond /isqc/c_ut /isqc/c_ut_cpartto fix, logfile /usr/sap/<sapsid>/<instancename>/work/sapcpe_jdbcdriver, sysobj locksize row   alter tablespace dsndb06, syscopy locksize row   alter tablespace dsndb06, alter table  &tab_name&        add primary key, product> -> operations -> database-specific guides, read/write mounted file system, cd /sapmnt/<sapsid>/global/3, file export_1/db/ddldb2, create unique index  &pri_key&
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