How to create normal table to temp table in Ax 2012

How to create normal table to temp table in Ax 2012

static void CookBookEX21(Args _args)
{
    CustTable custTable;
    ;
    custTable.setTmp(); // Here I'm setting the normal table as a Temp Table;
     custTable.AccountNum  = "23";
    custTable.Blocked = CustVendorBlocked::All;
    custTable.Party     =   12;
    custTable.doInsert();
    custTable.clear();
 
    custTable.AccountNum = "177";
    custTable.Blocked = CustVendorBlocked::Invoice;
    custTable.Party     =   1112;
    custTable.doInsert();
 
 
 
 
    while select custTable
    {
        info(strFmt("%1",custTable.AccountNum));
    }

}