diff --git a/tests/script/general/user/user_create.sim b/tests/script/general/user/user_create.sim
index 8f0d32e7ccf429a4db7a8a937142895fbf7d28ff..4b81313695ad9b51e040ae2943f148f373c49372 100644
--- a/tests/script/general/user/user_create.sim
+++ b/tests/script/general/user/user_create.sim
@@ -49,19 +49,22 @@ sleep 2000
 
 sql alter user read privilege read
 sql show users
-if $data1_read != read then 
+print $data1_read
+if $data1_read != readable then 
   return -1
 endi
 
 sql_error alter user read privilege super
 sql show users
-if $data1_read != read then
+print $data1_read
+if $data1_read != readable then
   return -1
 endi
 
 sql alter user read privilege write
 sql show users
-if $data1_read != write then 
+print $data1_read
+if $data1_read != writable then 
   return -1
 endi
 
diff --git a/tests/script/unique/account/user_create.sim b/tests/script/unique/account/user_create.sim
index b22cefcf21a1a1f8048b4a038d1c51771307ee03..bc4a8f6e8e0a81f87f88c553ee3a02e18065c794 100644
--- a/tests/script/unique/account/user_create.sim
+++ b/tests/script/unique/account/user_create.sim
@@ -49,19 +49,21 @@ sleep 2000
 
 sql alter user read privilege read
 sql show users
-if $data1_read != read then 
+print $data1_read
+if $data1_read != readable then 
   return -1
 endi
 
 sql_error alter user read privilege super
 sql show users
-if $data1_read != read then
+print $data1_read
+if $data1_read != readable then
   return -1
 endi
 
 sql alter user read privilege write
 sql show users
-if $data1_read != write then 
+if $data1_read != writable then 
   return -1
 endi
 
diff --git a/tests/tsim/src/simExe.c b/tests/tsim/src/simExe.c
index 26291ba992346b595314d3e017272809aad3d62e..aea295c563cef60b82444d31b38872a9839ce190 100644
--- a/tests/tsim/src/simExe.c
+++ b/tests/tsim/src/simExe.c
@@ -733,6 +733,7 @@ bool simExecuteNativeSqlCommand(SScript *script, char *rest, bool isSlow) {
               break;
             case TSDB_DATA_TYPE_BINARY:
             case TSDB_DATA_TYPE_NCHAR:
+              memset(value, 0, MAX_QUERY_VALUE_LEN);
               memcpy(value, row[i], fields[i].bytes);
               value[fields[i].bytes] = 0;
               // snprintf(value, fields[i].bytes, "%s", (char *)row[i]);