最后20分， 请高手详解

[guanjueweimiao]

with dm.ADO_chaxun_Query do
begin
Close;
SQL.Add ('select * from 学生表 ');
SQL.Add ('where xingming =:xingming and xingbie=:xingbie and xuehao=:xuehao and banji=:banji');
Parameters.ParamByName ('xingming').Value := xingming.Text ;
Parameters.ParamByName ('xingbie').Value := xingbie.Text ;
Parameters.ParamByName ('xuehao').Value :=StrToInt(xuehao.Text) ;
Parameters.ParamByName ('banji').Value :=StrToInt(banji.Text) ;
open;
end;
这是查询按钮的一段代码，能通过编译，但一输入要查询的内容时报错说from语名有错，
请各位高手指点一下。

[chenzf]

在close;后面加SQL.clear;试试

[pengdali]

with dm.ADO_chaxun_Query do
begin
Close;
sql.clear;
SQL.Add ('select * from 库名..学生表 where xingming=:xingming and xingbie=:xingbie and xuehao=:xuehao and banji=:banji');
Parameters.ParamByName ('xingming').Value := xingming.Text ;
Parameters.ParamByName ('xingbie').Value := xingbie.Text ;
Parameters.ParamByName ('xuehao').Value :=StrToInt(xuehao.Text) ;
Parameters.ParamByName ('banji').Value :=StrToInt(banji.Text) ;
open;
end;

[guanjueweimiao]

TO:大力
　我想将上面的查询结果显示在DBGRID中，哪还需要设置？