diff --git a/catalogue/drop_oracle_catalogue_schema.sql b/catalogue/drop_oracle_catalogue_schema.sql
index 268f2c6b852b3b8f7c28d505d8ea1d52ce6105b6..7d25ddb70b8106224ea4368d03519de637532619 100644
--- a/catalogue/drop_oracle_catalogue_schema.sql
+++ b/catalogue/drop_oracle_catalogue_schema.sql
@@ -88,6 +88,10 @@ BEGIN
 
   IF catalogueSchemaIsLocked() THEN
     DBMS_OUTPUT.PUT_LINE('Aborting drop of catalogue schema objects: Schema is LOCKED');
+    DBMS_OUTPUT.PUT_LINE('See the following command-line tools for more details:');
+    DBMS_OUTPUT.PUT_LINE('cta-catalogue-schema-lock');
+    DBMS_OUTPUT.PUT_LINE('cta-catalogue-schema-status');
+    DBMS_OUTPUT.PUT_LINE('cta-catalogue-schema-unlock');
   ELSE
     FOR i IN 1 .. tables.COUNT LOOP
       dropTableIfExists(tables(i));