diff --git a/sql/dm/flowable-6.8.md b/sql/dm/flowable-6.8.md
index 7a7b10f6e..6619d7e6c 100644
--- a/sql/dm/flowable-6.8.md
+++ b/sql/dm/flowable-6.8.md
@@ -4,7 +4,7 @@
 
 ## 1. 覆盖 flowable，liquibase 相关代码
 
-把`flowable-patch/src`下的文件按文件结果添加到`yudao-server`项目对应目录中
+把`flowable-patch/src`下的文件按文件结果添加到`yudao-server`或者`yudao-module-bpm-biz`项目对应目录中，甚至你可以做个独立模块。
 
 ## 2. 修改相关 DAO
 
diff --git a/sql/dm/flowable-patch/src/main/java/org/flowable/common/engine/impl/AbstractEngineConfiguration.java b/sql/dm/flowable-patch/src/main/java/org/flowable/common/engine/impl/AbstractEngineConfiguration.java
index 67e767fb4..33c52d551 100644
--- a/sql/dm/flowable-patch/src/main/java/org/flowable/common/engine/impl/AbstractEngineConfiguration.java
+++ b/sql/dm/flowable-patch/src/main/java/org/flowable/common/engine/impl/AbstractEngineConfiguration.java
@@ -408,7 +408,7 @@ public abstract class AbstractEngineConfiguration {
         databaseTypeMappings.setProperty("DB2/2", DATABASE_TYPE_DB2);
         databaseTypeMappings.setProperty("DB2 UDB AS400", DATABASE_TYPE_DB2);
         databaseTypeMappings.setProperty(PRODUCT_NAME_CRDB, DATABASE_TYPE_COCKROACHDB);
-        databaseTypeMappings.setProperty("DM DBMS", DATABASE_TYPE_ORACLE);
+        databaseTypeMappings.setProperty("DM DBMS", DATABASE_TYPE_ORACLE); // dhb52: DM support
         return databaseTypeMappings;
     }