diff --git a/docs/zh/12-taos-sql/02-database.md b/docs/zh/12-taos-sql/02-database.md
index a2a0914120..b329413aa8 100644
--- a/docs/zh/12-taos-sql/02-database.md
+++ b/docs/zh/12-taos-sql/02-database.md
@@ -121,6 +121,8 @@ alter_database_option: {
   | WAL_LEVEL value
   | WAL_FSYNC_PERIOD value
   | KEEP value
+  | WAL_RETENTION_PERIOD value
+  | WAL_RETENTION_SIZE value
 }
 ```