diff --git a/extdbms/lib/Controllers/DBMS/ServerController.php b/extdbms/lib/Controllers/DBMS/ServerController.php
index 416a791..2f01bed 100644
--- a/extdbms/lib/Controllers/DBMS/ServerController.php
+++ b/extdbms/lib/Controllers/DBMS/ServerController.php
@@ -38,23 +38,20 @@ class ServerController extends DBMSController
         $lineup_explode = explode('.', $entity->getSpec());
         $spec           = $lineup_explode[0];
         $cpu            = $entity->getCPUName();
-        $this->getServerService()->getModel()->like("server_cpuname", $cpu, "both");
-        $this->getServerService()->getModel()->like("server_spec", $spec, "both");
+        $this->getServerService()->getModel()->like(["server_cpuname" => "%$cpu%", "server_spec" => "%$spec%"]);
         $entity->all = $this->getServerService()->getCount();
 
         $this->getServerService()->getModel()->where("server_use_status", "n");
-        $this->getServerService()->getModel()->like("server_cpuname", $cpu, "both");
-        $this->getServerService()->getModel()->like("server_spec", $spec, "both");
+        $this->getServerService()->getModel()->like(["server_cpuname" => "%$cpu%", "server_spec" => "%$spec%"]);
         $entity->use = $this->getServerService()->getCount();
 
         $this->getServerService()->getModel()->where("server_use_status", "y");
-        $this->getServerService()->getModel()->like("server_cpuname", $cpu, "both");
-        $this->getServerService()->getModel()->like("server_spec", $spec, "both");
+        $this->getServerService()->getModel()->like(["server_cpuname" => "%$cpu%", "server_spec" => "%$spec%"]);
         $entity->empty = $this->getServerService()->getCount();
 
         $this->getServerService()->getModel()->where("server_use_status", "y");
-        $this->getServerService()->getModel()->like("server_cpuname", $cpu, "both");
         $this->getServerService()->getModel()->where("server_fomat_date !='NULL'");
+        $this->getServerService()->getModel()->like(["server_cpuname" => "%$cpu%"]);
         $entity->format = $this->getServerService()->getCount();
         return $entity;
     }
diff --git a/extdbms/lib/Database/QueryBuilder.php b/extdbms/lib/Database/QueryBuilder.php
index 86a78db..297271a 100644
--- a/extdbms/lib/Database/QueryBuilder.php
+++ b/extdbms/lib/Database/QueryBuilder.php
@@ -61,8 +61,14 @@ class QueryBuilder
   {
     $sql = '';
     foreach ($this->where as $index => $clause) {
-      $boolean = $index === 0 ? '' : $clause['boolean'] . ' ';
-      $sql .= $boolean . $clause['condition'] . ' ';
+      if (is_array($clause)) {
+        $boolean = $index === 0 ? '' : $clause['boolean'] . ' ';
+        $sql .= $boolean . $clause['condition'] . ' ';
+      } else {
+        // 문자열 형태일 경우 (like에서 사용됨)
+        $boolean = $index === 0 ? '' : 'AND ';
+        $sql .= $boolean . $clause . ' ';
+      }
     }
     return trim($sql);
   }
@@ -233,8 +239,7 @@ class QueryBuilder
   //binding까지 완료한 SQL문을 return함
   final public function toRawSql(): string
   {
-    $sql = $this->buildSelectSql();
-    $raw = $sql;
+    $raw = $this->buildSelectSql();
     foreach ($this->bindings as $key => $value) {
       $escaped = is_numeric($value) ? $value : $this->pdo->quote($value);
       // 명명된 바인딩
@@ -249,9 +254,10 @@ class QueryBuilder
   }
   final public function get(): array
   {
-    $sql = $this->buildSelectSql();
     if ($this->_debug) {
-      echo "\n<BR>SQL DEBUG:" . $this->toRawSql() . "<BR>";
+      echo php_sapi_name() === 'cli'
+        ? "\nSQL DEBUG: " . $this->toRawSql() . "\n"
+        : "<pre>SQL DEBUG: " . $this->toRawSql() . "</pre>";
     }
     $this->latestQuery = $this->toRawSql();
     $stmt = $this->pdo->prepare($this->buildSelectSql());