diff --git a/Oracle/in_undo.sql b/Oracle/in_undo.sql
index e69de29..91d199d 100644
--- a/Oracle/in_undo.sql
+++ b/Oracle/in_undo.sql
@@ -0,0 +1,2 @@
+--check to see if we still have values in UNDO.
+SELECT * FROM <table> AS OF TIMESTAMP TO_TIMESTAMP('2020-03-05 15:00:00', 'YYYY-MM-DD HH24:MI:SS');
\ No newline at end of file
diff --git a/Oracle/service_name.sql b/Oracle/service_name.sql
new file mode 100644
index 0000000..a9be672
--- /dev/null
+++ b/Oracle/service_name.sql
@@ -0,0 +1 @@
+select value from v$parameter where name like '%service_name%';
\ No newline at end of file