diff --git a/process/Binary_lib/process.js b/process/Binary_lib/process.js
index 42b5c995df062c2a7b73c1debe868ce148ff2d5b..a52ba3daa3b303faf1285610c02b351fa0dd0db8 100644
--- a/process/Binary_lib/process.js
+++ b/process/Binary_lib/process.js
@@ -84,6 +84,7 @@ function SingleBinaryUtils() {}
 SingleBinaryUtils.get = function(pAssignmentTable, pAssignmentName, pAssignmentRowId, pAlias, pKeyword)
 {
     pAlias = pAlias || SqlUtils.getBinariesAlias();
+    pKeyword = pKeyword || "";
     
     if (this.checkExistsOneTime(pAssignmentTable, pAssignmentName, pAssignmentRowId, pAlias, pKeyword))
     {
@@ -125,6 +126,7 @@ SingleBinaryUtils.get = function(pAssignmentTable, pAssignmentName, pAssignmentR
 SingleBinaryUtils.getMetadata = function(pAssignmentTable, pAssignmentName, pAssignmentRowId, pIncludePreview, pAlias, pKeyword)
 {
     pAlias = pAlias || SqlUtils.getBinariesAlias();
+    pKeyword = pKeyword || "";
     
     if (this.checkExistsOneTime(pAssignmentTable, pAssignmentName, pAssignmentRowId, pAlias, pKeyword))
     {
@@ -162,6 +164,7 @@ SingleBinaryUtils.getMetadata = function(pAssignmentTable, pAssignmentName, pAss
 SingleBinaryUtils.checkExistsOneTime = function(pAssignmentTable, pAssignmentName, pAssignmentRowId, pAlias, pKeyword)
 {   
     pAlias = pAlias || SqlUtils.getBinariesAlias();
+    pKeyword = pKeyword || "";
     var countBinary = db.getBinaryCount(pAssignmentTable, pAssignmentName, pAssignmentRowId, pAlias, pKeyword || null);
     
     if (countBinary == 0)
@@ -210,6 +213,7 @@ SingleBinaryUtils.checkExistsOneTime = function(pAssignmentTable, pAssignmentNam
 SingleBinaryUtils.insert = function(pAssignmentTable, pAssignmentName, pAssignmentRowId, pBase64, pFileName, pDescription, pKeyword, pAlias)
 {
     pAlias = pAlias || SqlUtils.getBinariesAlias();
+    pKeyword = pKeyword || "";
     
     if (!this.checkExistsOneTime(pAssignmentTable, pAssignmentName, pAssignmentRowId, pAlias, pKeyword))
     {
@@ -289,6 +293,8 @@ SingleBinaryUtils.update = function(pAssignmentTable, pAssignmentName, pAssignme
     if (pAlias == undefined) 
         pAlias = SqlUtils.getBinariesAlias();
     
+    pKeyword = pKeyword || "";
+    
     if (this.checkExistsOneTime(pAssignmentTable, pAssignmentName, pAssignmentRowId, pAlias, pKeyword))
     {
         var binaryMetadata = db.getBinaryMetadata(pAssignmentTable, pAssignmentName, pAssignmentRowId, false, pAlias, pKeyword)[0];