diff --git a/src/modules/monitor/src/monitorSystem.c b/src/modules/monitor/src/monitorSystem.c
index 0f1b2089073ba97d665b52c2f0728790c49de472..ed6964df7a41bac6cbe64fcf99a33ace40dbd1e2 100644
--- a/src/modules/monitor/src/monitorSystem.c
+++ b/src/modules/monitor/src/monitorSystem.c
@@ -126,7 +126,7 @@ void dnodeBuildMonitorSql(char *sql, int cmd) {
   if (cmd == MONITOR_CMD_CREATE_DB) {
     snprintf(sql, SQL_LENGTH,
              "create database if not exists %s replica 1 days 10 keep 30 rows 1024 cache 2048 "
-             "ablocks 2 tblocks 32 tables 32 precision us",
+             "ablocks 2 tblocks 32 tables 32 precision 'us'",
              tsMonitorDbName);
   } else if (cmd == MONITOR_CMD_CREATE_MT_DN) {
     snprintf(sql, SQL_LENGTH,
diff --git a/src/util/src/tutil.c b/src/util/src/tutil.c
index 8a3f96ab73192c81a2af790693fe0ab9848024f0..39eccf15b009817bb317d54600efbc42837c9306 100644
--- a/src/util/src/tutil.c
+++ b/src/util/src/tutil.c
@@ -396,7 +396,7 @@ bool taosCheckDbName(char *db, char *monitordb) {
   char *pos = strchr(db, '.');
   if (pos == NULL) return false;
 
-  return strcmp(pos + 1, monitordb) == 0;
+  return strncasecmp(pos + 1, monitordb, strlen(monitordb)) == 0;
 }
 
 bool taosUcs4ToMbs(void *ucs4, int32_t ucs4_max_len, char *mbs) {