diff --git a/examples/c/stream_demo.c b/examples/c/stream_demo.c
index ab59fa5e474cb8e6dde123b18c8cc265570aeeaa..5a141867e7b56693eece323a8e039e7afe94b1dd 100644
--- a/examples/c/stream_demo.c
+++ b/examples/c/stream_demo.c
@@ -32,6 +32,13 @@ int32_t init_env() {
   }
   taos_free_result(pRes);
 
+  pRes = taos_query(pConn, "create database if not exists abc2 vgroups 20");
+  if (taos_errno(pRes) != 0) {
+    printf("error in create db, reason:%s\n", taos_errstr(pRes));
+    return -1;
+  }
+  taos_free_result(pRes);
+
   pRes = taos_query(pConn, "use abc1");
   if (taos_errno(pRes) != 0) {
     printf("error in use db, reason:%s\n", taos_errstr(pRes));
@@ -81,9 +88,9 @@ int32_t create_stream() {
   /*const char* sql = "select min(k), max(k), sum(k) as sum_of_k from st1";*/
   /*const char* sql = "select sum(k) from tu1 interval(10m)";*/
   /*pRes = tmq_create_stream(pConn, "stream1", "out1", sql);*/
-  pRes = taos_query(
-      pConn,
-      "create stream stream1 trigger max_delay 10s into outstb as select _wstartts, sum(k) from st1 interval(10m)");
+  pRes = taos_query(pConn,
+                    "create stream stream1 trigger at_once into abc2.outstb as select _wstartts, sum(k) from st1  "
+                    "partition by tbname interval(10m) ");
   if (taos_errno(pRes) != 0) {
     printf("failed to create stream stream1, reason:%s\n", taos_errstr(pRes));
     return -1;
diff --git a/tests/system-test/fulltest.sh b/tests/system-test/fulltest.sh
index a4655bddbebd0401138d97d0ab57da34f498e965..78cf63de928e6eef2375491c893b774921d96b58 100755
--- a/tests/system-test/fulltest.sh
+++ b/tests/system-test/fulltest.sh
@@ -115,6 +115,8 @@ python3 ./test.py -f 7-tmq/basic5.py
 python3 ./test.py -f 7-tmq/subscribeDb.py
 python3 ./test.py -f 7-tmq/subscribeDb0.py
 python3 ./test.py -f 7-tmq/subscribeDb1.py
+python3 ./test.py -f 7-tmq/subscribeDb2.py
+python3 ./test.py -f 7-tmq/subscribeDb3.py
 python3 ./test.py -f 7-tmq/subscribeStb.py
 python3 ./test.py -f 7-tmq/subscribeStb0.py
 python3 ./test.py -f 7-tmq/subscribeStb1.py