var
FieldValue:string;
begin
with ADOQuery1 do
begin
close;
sql.clear;
sql.add('select column from table');
open;
end;
if not adoquery1.eof then
FieldValue:=ADOQuery1.Fields[0].AsString;
else
Fieldvalue:='没有';
end;
表达方式可能不
一样但是基本原理差不多!
var
FieldValue:string;
begin
with ADOQuery1 do
begin
close;
sql.clear;
sql.add('select column from table ');
open;
end;
FieldValue:=ADOQuery1.Fields[0].AsString;
end;