diff --git a/process/Sql_lib/process.js b/process/Sql_lib/process.js
index 8daa0c113d106ba981dbc86c357d98f48d46aff1..09f923765541a739d7cd93bf787f633715dc11a1 100644
--- a/process/Sql_lib/process.js
+++ b/process/Sql_lib/process.js
@@ -894,19 +894,19 @@ SqlBuilder.prototype.from = function(pTable, pTableAlias)
  * @param {String|SqlBuilder} pTable
  * @param {String|String[]|SqlBuilder} pCondition The where condition. This can be
  *          a string (without the where keyword), a SqlBuilder or an array (for prepared queries).
- * @param {String} [pAlias] table alias
+ * @param {String} [pTableAlias] table alias
  * @param {String} [pPrefix] string before the join, for example "left", "right"
  * @return {SqlBuilder} current SqlBuilder object
  */
-SqlBuilder.prototype.join = function(pTable, pCondition, pAlias, pPrefix)
+SqlBuilder.prototype.join = function(pTable, pCondition, pTableAlias, pPrefix)
 {
     var prefix = "join";
     if (pPrefix)
         prefix = pPrefix + " " + prefix;
     
     var postfix = "on";
-    if (pAlias)
-        postfix = pAlias + " " + postfix;
+    if (pTableAlias)
+        postfix = pTableAlias + " " + postfix;
     
     var joinPart = SqlBuilder._getStatement(pTable, prefix, postfix);
     var conditionPart = SqlBuilder._getStatement(pCondition);
@@ -923,12 +923,12 @@ SqlBuilder.prototype.join = function(pTable, pCondition, pAlias, pPrefix)
  * @param {String|SqlBuilder} pTable
  * @param {String|String[]|SqlBuilder} pCondition The where condition. This can be
  *          a string (without the where keyword), a SqlBuilder or an array (for prepared queries).
- * @param {String} [pAlias] table alias
+ * @param {String} [pTableAlias] table alias
  * @return {SqlBuilder} current SqlBuilder object
  */
-SqlBuilder.prototype.leftJoin = function(pTable, pCondition, pAlias)
+SqlBuilder.prototype.leftJoin = function(pTable, pCondition, pTableAlias)
 {
-    return this.join(pTable, pCondition, pAlias, "left");
+    return this.join(pTable, pCondition, pTableAlias, "left");
 }
 
 /**
@@ -936,12 +936,12 @@ SqlBuilder.prototype.leftJoin = function(pTable, pCondition, pAlias)
  * @param {String|SqlBuilder} pTable
  * @param {String|String[]|SqlBuilder} pCondition The where condition. This can be
  *          a string (without the where keyword), a SqlBuilder or an array (for prepared queries).
- * @param {String} [pAlias] table alias
+ * @param {String} [pTableAlias] table alias
  * @return {SqlBuilder} current SqlBuilder object
  */
-SqlBuilder.prototype.rightJoin = function(pTable, pCondition, pAlias)
+SqlBuilder.prototype.rightJoin = function(pTable, pCondition, pTableAlias)
 {
-    return this.join(pTable, pCondition, pAlias, "right");
+    return this.join(pTable, pCondition, pTableAlias, "right");
 }
 
 /**