Insert all SQL Server table rows in a Google BigQuery Table

I am coding in Coldfusion. I want to know the best way (best performance and reaction time) to insert all rows of an SQL table into a Google Bigquery Table. Actually I am looping over a query result and insert the rows one by one into the BigQuery Table. The query GetShippingList returns all TShipping_ID of the table Shipping which has only one column:TShipping_ID. So the SQL table has exactly the same schema of the BigQuery Table. This is the code I am actually using:

    <cfloop query="GetShippingList">
        <cfset DateTime=mid("#now()#",6,19)>
        <cfset TShipping_ID=TShipping_ID>

        <!--- instancier un objet de type (class) TableRow --->
        <cfobject action="create" type="java" class="com.google.api.services.bigquery.model.TableRow" name="row">
        <cfset row.set("DateTime",DateTime)>
        <cfset row.set("TShipping_ID", TShipping_ID)>

        <!--- instancier un objet de type (class) TableDataInsertAllRequest.Rows --->
        <cfobject action="create" type="java" class="com.google.api.services.bigquery.model.TableDataInsertAllRequest$Rows" name="rows">
        <cfdump var="#rows#">

        <!--- instancier un objet de type (class) TableDataInsertAllRequest --->
        <cfobject action="create" type="java" class="java.lang.System" name="sys">
        <cfdump var="#sys#">

        <cfset rows.setInsertId(sys.currentTimeMillis())>
        <cfset rows.setJson(row)>

        <!--- instancier un objet de type (class) ArrayList --->
        <cfobject action="create" type="java" class="java.util.ArrayList" name="rowList">
        <cfdump var="#rowList#">
        <cfset rowList.add(rows)>

        <!--- instancier un objet de type (class) TableDataInsertAllRequest --->
        <cfobject action="create" type="java" class="com.google.api.services.bigquery.model.TableDataInsertAllRequest" name="rqst">
        <cfdump var="#rqst#">
        <cfset content=rqst.setRows(rowList)>


        <!--- instancier un objet de type (class) TableDataInsertAllResponse --->
        <cfobject action="create" type="java" class="com.google.api.services.bigquery.model.TableDataInsertAllResponse" name="rsp">
        <cfdump var="#rsp#">
        <cfset response = bq.tabledata().insertAll("vigicolis", "wi_vigicolis", "TShipping", content).execute()>
    </cfloop>