--- /dev/null
+ALTER TABLE NOVA_TASK_RUNTIME DROP FOREIGN KEY FK_TASK_EXEC;
+ALTER TABLE NOVA_TASK_RUNTIME ADD CONSTRAINT FK_TASK_EXEC FOREIGN KEY FK_TASK_EXEC (EXECUTION_) REFERENCES NOVA_XPDL_EXEC (DBID_) ON DELETE CASCADE ON UPDATE RESTRICT;
+ALTER TABLE NOVA_CANDIDATES DROP FOREIGN KEY FK_CAND_TASK;
+ALTER TABLE NOVA_CANDIDATES ADD CONSTRAINT FK_CAND_TASK FOREIGN KEY FK_CAND_TASK (TASK_RUNTIME_ID_) REFERENCES NOVA_TASK_RUNTIME (DBID_) ON DELETE CASCADE ON UPDATE RESTRICT;
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