diff --git a/services/distributeddataservice/service/data_share/gaussdb_rd/src/oh_adapter/include/json_object.h b/services/distributeddataservice/service/data_share/gaussdb_rd/src/oh_adapter/include/json_object.h
index 664bd439aa231c9ac99c118a581a4ebf6398805c..4f5efa4a0d6b2dc8354759843a2b19582df55f4b 100644
--- a/services/distributeddataservice/service/data_share/gaussdb_rd/src/oh_adapter/include/json_object.h
+++ b/services/distributeddataservice/service/data_share/gaussdb_rd/src/oh_adapter/include/json_object.h
@@ -37,7 +37,6 @@ public:
     explicit ValueObject(bool val);
     explicit ValueObject(double val);
     explicit ValueObject(const char *val);
-    explicit ValueObject(const std::string &val);
 
     ValueType GetValueType() const;
     bool GetBoolValue() const;
diff --git a/services/distributeddataservice/service/data_share/gaussdb_rd/src/oh_adapter/src/json_object.cpp b/services/distributeddataservice/service/data_share/gaussdb_rd/src/oh_adapter/src/json_object.cpp
index a61824e6bb9bfa344170b036612c2a0e0c6a3ccf..5130029da576bbe319298ca47b0b22f2340eb80f 100644
--- a/services/distributeddataservice/service/data_share/gaussdb_rd/src/oh_adapter/src/json_object.cpp
+++ b/services/distributeddataservice/service/data_share/gaussdb_rd/src/oh_adapter/src/json_object.cpp
@@ -43,7 +43,7 @@ ValueObject::ValueObject(double val)
     doubleValue = val;
 }
 
-ValueObject::ValueObject(const std::string &val)
+ValueObject::ValueObject(const char *val)
 {
     valueType = ValueType::VALUE_STRING;
     stringValue = val;