Job to copy all the record from one table to another in Dynamic AX

// Copy data from one table to another using job
static void CopyData(Args _args)
{
    CustTable custTable ;
    DuplicateTable duplicateTable ;
    ;
    ttsBegin;
    while select custTable
    {
        buf2Buf(custTable ,duplicateTable );  
        duplicateTable.insert();
    }
    ttsCommit;
}

Regards,