diff --git a/src/share/schema/ob_schema_service_sql_impl.cpp b/src/share/schema/ob_schema_service_sql_impl.cpp
index af8007b3d7..c4779df6a6 100644
--- a/src/share/schema/ob_schema_service_sql_impl.cpp
+++ b/src/share/schema/ob_schema_service_sql_impl.cpp
@@ -8463,6 +8463,7 @@ int ObSchemaServiceSQLImpl::fetch_link_table_info(uint64_t tenant_id,
               next_sql_req_level == 1 &&
               (ObNCharType == column_schema.get_data_type() || ObNVarchar2Type == column_schema.get_data_type())) {
             if (DBLINK_DRV_OB == link_type &&
+                sql::DblinkGetConnType::TEMP_CONN != conn_type &&
                 OB_FAIL(fetch_desc_table(dblink_id,
                                         link_type,
                                         database_name,
diff --git a/src/sql/resolver/ddl/ob_drop_table_resolver.cpp b/src/sql/resolver/ddl/ob_drop_table_resolver.cpp
index 2ca0ec6451..37727e2fc8 100644
--- a/src/sql/resolver/ddl/ob_drop_table_resolver.cpp
+++ b/src/sql/resolver/ddl/ob_drop_table_resolver.cpp
@@ -131,15 +131,22 @@ int ObDropTableResolver::resolve(const ParseNode &parse_tree)
             : parse_tree.children_[TABLE_LIST_NODE]->children_[i];
         ObString dblink_name;
         bool has_reverse_link = false;
+        bool has_dblink_node = false;
         if (NULL == table_node) {
           ret = OB_ERR_UNEXPECTED;
           SQL_RESV_LOG(WARN, "table_node is null", K(ret));
-        } else if (OB_FAIL(resolve_dblink_name(table_node, dblink_name, has_reverse_link))) {
+        } else if (OB_FAIL(resolve_dblink_name(table_node, dblink_name, has_reverse_link, has_dblink_node))) {
           SQL_RESV_LOG(WARN, "failed to resolv dblink name", K(ret));
-        } else if (has_reverse_link || !dblink_name.empty()) {
-          ret = OB_ERR_DDL_ON_REMOTE_DATABASE;
-          SQL_RESV_LOG(WARN, "drop table on remote database by dblink.", K(ret));
-          LOG_USER_ERROR(OB_ERR_DDL_ON_REMOTE_DATABASE);
+        } else if (has_dblink_node) {
+          if (has_reverse_link || !dblink_name.empty()) {
+            ret = OB_ERR_DDL_ON_REMOTE_DATABASE;
+            SQL_RESV_LOG(WARN, "drop table on remote database by dblink", K(ret));
+            LOG_USER_ERROR(OB_ERR_DDL_ON_REMOTE_DATABASE);
+          } else {
+            ret = OB_ERR_DATABASE_LINK_EXPECTED;
+            SQL_RESV_LOG(WARN, "database link name expected", K(ret));
+            LOG_USER_ERROR(OB_ERR_DATABASE_LINK_EXPECTED);
+          }
         } else {
           db_name.reset();
           table_name.reset();
diff --git a/src/sql/resolver/dml/ob_dml_resolver.cpp b/src/sql/resolver/dml/ob_dml_resolver.cpp
index b7ad48eb1b..eac056d014 100755
--- a/src/sql/resolver/dml/ob_dml_resolver.cpp
+++ b/src/sql/resolver/dml/ob_dml_resolver.cpp
@@ -7150,10 +7150,11 @@ int ObDMLResolver::resolve_table_relation_factor(const ParseNode *node,
                                                  ObIArray<uint64_t> &ref_obj_ids)
 {
   int ret = OB_SUCCESS;
+  bool has_dblink_node = false;
   if (OB_ISNULL(session_info_)) {
     ret = OB_ERR_UNEXPECTED;
     LOG_WARN("session info is NULL", K(ret));
-  } else if (OB_FAIL(resolve_dblink_name(node, dblink_name, is_reverse_link))) {
+  } else if (OB_FAIL(resolve_dblink_name(node, dblink_name, is_reverse_link, has_dblink_node))) {
     LOG_WARN("resolve dblink name failed", K(ret));
   } else {
     LOG_DEBUG("resolve dblink name", K(dblink_name), K(is_reverse_link));
diff --git a/src/sql/resolver/ob_stmt_resolver.cpp b/src/sql/resolver/ob_stmt_resolver.cpp
index a42332680c..d7b9bcd534 100644
--- a/src/sql/resolver/ob_stmt_resolver.cpp
+++ b/src/sql/resolver/ob_stmt_resolver.cpp
@@ -170,13 +170,14 @@ int ObStmtResolver::resolve_table_relation_node_v2(const ParseNode *node,
   return ret;
 }
 
-int ObStmtResolver::resolve_dblink_name(const ParseNode *table_node, ObString &dblink_name, bool &is_reverse_link)
+int ObStmtResolver::resolve_dblink_name(const ParseNode *table_node, ObString &dblink_name, bool &is_reverse_link, bool &has_dblink_node)
 {
   int ret = OB_SUCCESS;
   dblink_name.reset();
   if (!OB_ISNULL(table_node) && table_node->num_child_ > 2 &&
       !OB_ISNULL(table_node->children_) && !OB_ISNULL(table_node->children_[2])) {
     const ParseNode *dblink_node = table_node->children_[2];
+    has_dblink_node = true;
     if (2 == dblink_node->num_child_ && !OB_ISNULL(dblink_node->children_) &&
         !OB_ISNULL(dblink_node->children_[0]) && !OB_ISNULL(dblink_node->children_[1])) {
       int32_t dblink_name_len = static_cast<int32_t>(dblink_node->children_[0]->str_len_);
diff --git a/src/sql/resolver/ob_stmt_resolver.h b/src/sql/resolver/ob_stmt_resolver.h
index 621c1fd678..0f02b6cc21 100644
--- a/src/sql/resolver/ob_stmt_resolver.h
+++ b/src/sql/resolver/ob_stmt_resolver.h
@@ -84,7 +84,7 @@ public:
    *
    */
   static int resolve_ref_factor(const ParseNode *node, ObSQLSessionInfo *session_info, common::ObString &table_name, common::ObString &db_name);
-  static int resolve_dblink_name(const ParseNode *table_node, ObString &dblink_name, bool &is_reverse_link);
+  static int resolve_dblink_name(const ParseNode *table_node, ObString &dblink_name, bool &is_reverse_link, bool &has_dblink_node);
   int resolve_database_factor(const ParseNode *node,
                               uint64_t tenant_id,
                               uint64_t &database_id,