临时表的有关问题,附代码.高手帮小弟我看看

临时表的问题,附代码.高手帮我看看
lcOldAlias=alias() &&保存当前工作区

lcSqlString= "select   *   from   mpcwlcsb   where   (approval=0   or   availability=1)   and   id   = ' "+allt(thisform.t4.value)+ " '     "
if   sqlexec(phandle,lcSqlString, "Tmpbjcgrec ")=-1
=messagebox(MSG_CONNECT_ERROR,48,MB_CAPTION)
Select   &lcOldAlias
return   .f.
ENDIF
select   Tmpbjcgrec
if   RECCOUNT(   )> 0
    =messagebox( "此物料对应的供应商已失效！ ",48,mb_caption)
return   .f.
endif


Select   Tmpbjcgrec
Use

sele   (iif(empty(lcoldalias),0,lcoldalias))

thisform.lockscreen=.t.
thisform.refresh
thisform.lockscreen=.f.

错误提示,找不到Tmpbjcgrec

------解决方案--------------------
sele (iif(empty(lcoldalias),0,(lcoldalias)))
------解决方案--------------------
你前面

Select Tmpbjcgrec
Use

已经USE关闭了表Tmpbjcgrec，再SELECT (lcoldalias)，肯定报错