求MSSQL的储存过程转换为MYsql！

  以下是我MSSQL的储存过程，希望高手能帮我转换为 Mysql 的储存过程谢谢了！  或者大家有没见过这类型的软件啊！


set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
go

ALTER procedure [dbo].[ST_ClientBIll]  @SheetId  varchar(20), @Flag int
as
begin
 
  declare  @payMoney    dec(12,2)
  declare  @NewSheetId  varchar(20)
  set nocount on
 
  update clientBill set flag = 100 where flag=0 and sheetid = @sheetId
 
  declare cur_bill cursor local for
    select refsheetId,payMoney  from clientBilldetail where sheetID = @sheetID
  open cur_bill
  while (1=1)
  begin
    fetch Next from cur_bill into @NewSheetID,@PayMoney
    if @@Fetch_Status <> 0 break
    if @NewSheetId is Null  or @newSheetID = '' continue;
    if @PayMoney is null  select @payMoney = 0.00
    update receipt set payMoney = Isnull(PayMoney,0)+@payMoney where SheetID = @NewSheetID
  end
  close cur_bill
  deallocate cur_bill
 
  Return 0

end

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  没人帮我吗！  呜呜！

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给你一下参考的例子，
建议自己先试着改一下，哪不对了，或者不理解再来