diff --git a/kernel-d-db/db-sdk-mp/src/main/java/cn/stylefeng/roses/kernel/db/mp/dboperator/DbOperatorImpl.java b/kernel-d-db/db-sdk-mp/src/main/java/cn/stylefeng/roses/kernel/db/mp/dboperator/DbOperatorImpl.java
index 2b6e4c271..ef4460e16 100644
--- a/kernel-d-db/db-sdk-mp/src/main/java/cn/stylefeng/roses/kernel/db/mp/dboperator/DbOperatorImpl.java
+++ b/kernel-d-db/db-sdk-mp/src/main/java/cn/stylefeng/roses/kernel/db/mp/dboperator/DbOperatorImpl.java
@@ -88,7 +88,7 @@ public class DbOperatorImpl implements DbOperatorApi {
 
         // 查询不到，直接返回最大值-100
         if (oneResult == null) {
-            return -100L;
+            return 100L;
         }
 
         Object maxSort = oneResult.get(tempFieldName);