diff --git a/backup_archive_fnct_FRA.sh b/backup_archive_fnct_FRA.sh
index 23a168c..0833aaf 100644
--- a/backup_archive_fnct_FRA.sh
+++ b/backup_archive_fnct_FRA.sh
@@ -14,8 +14,22 @@ exit $1
 
 } #f_help
 
+#------------------------------------------------------------------------------
+# fonction de récupération de la taille FRA utilisée
 #------------------------------------------------------------------------------
 
+f_fra_size() {
+
+fra_usage=$(sqlplus -s '/ as sysdba' << EOF
+    set pages 0 feedback off;
+    select round(sum(percent_space_used),0) from v\$flash_recovery_area_usage;
+EOF
+)
+
+return ${fra_usage}
+}
+
+#------------------------------------------------------------------------------
 ORACLE_SID=$1
 
 [ "${ORACLE_SID}" ] || f_help 2;
@@ -26,10 +40,4 @@ ORAENV_ASK=NO
 PATH=/usr/local/bin:$PATH
 . oraenv -s >/dev/null
 
-fra_usage=$(sqlplus -s '/ as sysdba' << EOF
-    set pages 0 feedback off;
-    select round(sum(percent_space_used),0) from v\$flash_recovery_area_usage;
-EOF
-)
-
-return ${fra_usage}
\ No newline at end of file
+f_fra_size ${ORACLE_SID}