diff --git a/数据库/oracle/归档日志及备份处理.md b/数据库/oracle/归档日志及备份处理.md
index 8167c34..8610bb0 100644
--- a/数据库/oracle/归档日志及备份处理.md
+++ b/数据库/oracle/归档日志及备份处理.md
@@ -96,7 +96,7 @@ delete noprompt archivelog until time  'sysdate-1';
 delete force archivelog until time 'sysdate-1';
 # 无提示强制删除昨天之前的日志
 delete noprompt  force archivelog until time 'sysdate -1';
-``
+```
 # 备份
 ## 列出备份信息
 ```sql