diff --git a/zh-cn/application-dev/database/database-relational-guidelines.md b/zh-cn/application-dev/database/database-relational-guidelines.md
index 55bb828478f626311ce11186c4ba23c474b8fd1b..6a9b5a120988cda65a5157118505664a469499cb 100644
--- a/zh-cn/application-dev/database/database-relational-guidelines.md
+++ b/zh-cn/application-dev/database/database-relational-guidelines.md
@@ -248,7 +248,7 @@
    promise.then(() => {
        console.info("setDistributedTables success.")
    }).catch((err) => {
-       console.info("setDistributedTables failed."")
+       console.info("setDistributedTables failed.")
    })
    ```