Fixed bug #104139: Cleaning logic should be more resilient to constraint violation errors

castor/db/oracleGC.sql

@@ -745,7 +745,7 @@ BEGIN
     FOR i IN 1 .. dcIds.COUNT LOOP
       DECLARE
         CONSTRAINT_VIOLATED EXCEPTION;
-        PRAGMA EXCEPTION_INIT(CONSTRAINT_VIOLATED, -1);
+        PRAGMA EXCEPTION_INIT(CONSTRAINT_VIOLATED, -2292);
       BEGIN
         DELETE FROM DiskCopy WHERE id = dcIds(i);
       EXCEPTION WHEN CONSTRAINT_VIOLATED THEN