diff --git a/src/observer/dbms_scheduler/ob_dbms_sched_job_executor.cpp b/src/observer/dbms_scheduler/ob_dbms_sched_job_executor.cpp
index 08a3b2c178..f8e14ebd9d 100644
--- a/src/observer/dbms_scheduler/ob_dbms_sched_job_executor.cpp
+++ b/src/observer/dbms_scheduler/ob_dbms_sched_job_executor.cpp
@@ -204,18 +204,14 @@ int ObDBMSSchedJobExecutor::run_dbms_sched_job(
           LOG_ERROR("number_of_argument not exist or not right", K(ret), K(number_of_argument));
         }
       }
-      if (job_info.is_oracle_tenant_) {
-        ObOracleSqlProxy oracle_proxy(*(static_cast<ObMySQLProxy *>(sql_proxy_)));
-        CK (OB_NOT_NULL(pool = static_cast<ObInnerSQLConnectionPool *>(oracle_proxy.get_pool())));
+      if (OB_SUCC(ret)) {
         OZ (ObDBMSSchedJobUtils::init_env(job_info, *session_info));
+        CK (OB_NOT_NULL(pool = static_cast<ObInnerSQLConnectionPool *>(sql_proxy_->get_pool())));
         OZ (pool->acquire_spi_conn(session_info, conn));
         OZ (conn->execute_write(tenant_id, what.string().ptr(), affected_rows));
         if (OB_NOT_NULL(conn)) {
           sql_proxy_->close(conn, ret);
         }
-      } else {//mysql mode need use mysql proxy
-        OZ (ObDBMSSchedJobUtils::init_env(job_info, *session_info));
-        OZ (sql_proxy_->write(tenant_id, what.string().ptr(), affected_rows));
       }
     }
   }
diff --git a/src/observer/dbms_scheduler/ob_dbms_sched_job_utils.cpp b/src/observer/dbms_scheduler/ob_dbms_sched_job_utils.cpp
index 63cf541236..9c5f92cd0b 100644
--- a/src/observer/dbms_scheduler/ob_dbms_sched_job_utils.cpp
+++ b/src/observer/dbms_scheduler/ob_dbms_sched_job_utils.cpp
@@ -245,24 +245,30 @@ int ObDBMSSchedJobUtils::init_session(
   uint64_t tenant_id,
   const ObString &database_name,
   uint64_t database_id,
-  const ObUserInfo* user_info)
+  const ObUserInfo* user_info,
+  const ObDBMSSchedJobInfo &job_info)
 {
   int ret = OB_SUCCESS;
-  ObObj oracle_sql_mode;
   ObArenaAllocator *allocator = NULL;
   const bool print_info_log = true;
   const bool is_sys_tenant = true;
   ObPCMemPctConf pc_mem_conf;
-  ObObj oracle_mode;
-  oracle_mode.set_int(1);
-  oracle_sql_mode.set_uint(ObUInt64Type, DEFAULT_ORACLE_MODE);
+  ObObj compatibility_mode;
+  ObObj sql_mode;
+  if (job_info.is_oracle_tenant_) {
+    compatibility_mode.set_int(1);
+    sql_mode.set_uint(ObUInt64Type, DEFAULT_ORACLE_MODE);
+  } else {
+    compatibility_mode.set_int(0);
+    sql_mode.set_uint(ObUInt64Type, DEFAULT_MYSQL_MODE);
+  }
   OX (session.set_inner_session());
   OZ (session.load_default_sys_variable(print_info_log, is_sys_tenant));
   OZ (session.update_max_packet_size());
   OZ (session.init_tenant(tenant_name.ptr(), tenant_id));
   OZ (session.load_all_sys_vars(schema_guard));
-  OZ (session.update_sys_variable(share::SYS_VAR_SQL_MODE, oracle_sql_mode));
-  OZ (session.update_sys_variable(share::SYS_VAR_OB_COMPATIBILITY_MODE, oracle_mode));
+  OZ (session.update_sys_variable(share::SYS_VAR_SQL_MODE, sql_mode));
+  OZ (session.update_sys_variable(share::SYS_VAR_OB_COMPATIBILITY_MODE, compatibility_mode));
   OZ (session.update_sys_variable(share::SYS_VAR_NLS_DATE_FORMAT,
                                   ObTimeConverter::COMPAT_OLD_NLS_DATE_FORMAT));
   OZ (session.update_sys_variable(share::SYS_VAR_NLS_TIMESTAMP_FORMAT,
@@ -276,6 +282,17 @@ int ObDBMSSchedJobUtils::init_session(
   OZ (session.set_user(
     user_info->get_user_name(), user_info->get_host_name_str(), user_info->get_user_id()));
   OX (session.set_user_priv_set(OB_PRIV_ALL | OB_PRIV_GRANT));
+  if (OB_SUCC(ret) && job_info.is_date_expression_job_class()) {
+    // set larger timeout for mview scheduler jobs
+    const int64_t QUERY_TIMEOUT_US = (24 * 60 * 60 * 1000000L); // 24hours
+    const int64_t TRX_TIMEOUT_US = (24 * 60 * 60 * 1000000L); // 24hours
+    ObObj query_timeout_obj;
+    ObObj trx_timeout_obj;
+    query_timeout_obj.set_int(QUERY_TIMEOUT_US);
+    trx_timeout_obj.set_int(TRX_TIMEOUT_US);
+    OZ (session.update_sys_variable(SYS_VAR_OB_QUERY_TIMEOUT, query_timeout_obj));
+    OZ (session.update_sys_variable(SYS_VAR_OB_TRX_TIMEOUT, trx_timeout_obj));
+  }
   return ret;
 }
 
@@ -317,7 +334,8 @@ int ObDBMSSchedJobUtils::init_env(
                    job_info.get_tenant_id(),
                    database_schema->get_database_name(),
                    database_schema->get_database_id(),
-                   user_info));
+                   user_info,
+                   job_info));
   OZ (exec_env.store(session));
   return ret;
 }
diff --git a/src/observer/dbms_scheduler/ob_dbms_sched_job_utils.h b/src/observer/dbms_scheduler/ob_dbms_sched_job_utils.h
index 055fd23515..77a666ea86 100644
--- a/src/observer/dbms_scheduler/ob_dbms_sched_job_utils.h
+++ b/src/observer/dbms_scheduler/ob_dbms_sched_job_utils.h
@@ -165,7 +165,7 @@ public:
   common::ObString &get_job_class() { return job_class_; }
 
   bool is_oracle_tenant() { return is_oracle_tenant_; }
-  bool is_date_expression_job_class() { return !!(scheduler_flags_ & JOB_SCHEDULER_FLAG_DATE_EXPRESSION_JOB_CLASS); }
+  bool is_date_expression_job_class() const { return !!(scheduler_flags_ & JOB_SCHEDULER_FLAG_DATE_EXPRESSION_JOB_CLASS); }
 
   int deep_copy(common::ObIAllocator &allocator, const ObDBMSSchedJobInfo &other);
 
@@ -286,7 +286,8 @@ public:
       uint64_t tenant_id,
       const common::ObString &database_name,
       uint64_t database_id,
-      const share::schema::ObUserInfo* user_info);
+      const share::schema::ObUserInfo* user_info,
+      const ObDBMSSchedJobInfo &job_info);
   static int init_env(ObDBMSSchedJobInfo &job_info,
                       sql::ObSQLSessionInfo &session);
   static int create_session(const uint64_t tenant_id,