diff --git a/ProductFunctionTester/Main_Form.vb b/ProductFunctionTester/Main_Form.vb
index 9711e18..51f0b5b 100644
--- a/ProductFunctionTester/Main_Form.vb
+++ b/ProductFunctionTester/Main_Form.vb
@@ -9,7 +9,7 @@ Imports uPLibrary.Networking.M2Mqtt
 
 Public Class Main_Form
     Public Program_Name As String = "DUALSONIC_Multi_Function_Tester Ver."
-    Public Program_Version As String = "2.0.3"
+    Public Program_Version As String = "2.0.4"
 
     ''데이터 베이스 테이블 목록
 
@@ -6009,7 +6009,7 @@ ProcessEnd:
             TestStep = TestList.DBWrite
             TestRunningState(testRunningList.Running, Color.Yellow)
 
-            DBCmd = "SELECT EXISTS(SELECT 1 FROM" & rfTableNow & "WHERE PV_SN='" & TestData.Test_Serial & "') AS A;"
+            DBCmd = "SELECT EXISTS(SELECT 1 FROM " & rfTableNow & " WHERE PV_SN='" & TestData.Test_Serial & "') AS A;"
 
             Dim DupYn As Boolean = DBQueryScalar(DBCmd)
 
@@ -6102,7 +6102,7 @@ dbFail:
 
         Dim sucSwitch As Boolean = False
 
-        DBCmd = "SELECT EXISTS(SELECT 1 FROM" & rfTableNow & "WHERE PV_SN='" & TestData.Test_Serial & "') AS A;"
+        DBCmd = "SELECT EXISTS(SELECT 1 FROM " & rfTableNow & " WHERE PV_SN='" & TestData.Test_Serial & "') AS A;"
 
         Dim DupYn As Boolean = DBQueryScalar(DBCmd)
 
@@ -6171,7 +6171,7 @@ dbFail:
         TestRunningState(testRunningList.Running, Color.Yellow)
 
         processNum = 0
-        DBCmd = "SELECT EXISTS(SELECT 1 FROM" & hfTableNow & "WHERE PV_SN='" & TestData.Test_Serial & "') AS A;"
+        DBCmd = "SELECT EXISTS(SELECT 1 FROM " & hfTableNow & " WHERE PV_SN='" & TestData.Test_Serial & "') AS A;"
 
         Dim DupYn As Boolean = DBQueryScalar(DBCmd)
 
@@ -6240,7 +6240,7 @@ dbFail:
 
         Dim NowDate As String = Format(Now, "yyyy") & "-" & Format(Now, "MM") & "-" & Format(Now, "dd")
         Dim NowTime As String = Format(Now, "HH") & ":" & Format(Now, "mm") & ":" & Format(Now, "ss")
-        DBCmd = "SELECT EXISTS(SELECT 1 FROM" & hfTableNow & "WHERE PV_SN='" & TestData.Test_Serial & "') AS A;"
+        DBCmd = "SELECT EXISTS(SELECT 1 FROM " & hfTableNow & " WHERE PV_SN='" & TestData.Test_Serial & "') AS A;"
 
         Dim DupYn As Boolean = DBQueryScalar(DBCmd)