diff --git a/adminer/drivers/oracle.inc.php b/adminer/drivers/oracle.inc.php
index 54a673ec..f5645954 100644
--- a/adminer/drivers/oracle.inc.php
+++ b/adminer/drivers/oracle.inc.php
@@ -188,7 +188,12 @@ if (isset($_GET["oracle"])) {
 	}
 
 	function get_databases() {
-		return get_vals("SELECT tablespace_name FROM user_tablespaces ORDER BY 1");
+		return get_vals("SELECT DISTINCT tablespace_name FROM (
+SELECT tablespace_name FROM user_tablespaces
+UNION SELECT tablespace_name FROM all_tables WHERE tablespace_name IS NOT NULL
+)
+ORDER BY 1"
+		);
 	}
 
 	function limit($query, $where, $limit, $offset = 0, $separator = " ") {
diff --git a/changes.txt b/changes.txt
index b416b23a..581cb09c 100644
--- a/changes.txt
+++ b/changes.txt
@@ -1,4 +1,5 @@
 Adminer 4.16.0-dev:
+Oracle: Include tables granted by other user
 
 Adminer 4.15.0:
 Escape unknown field in select