connection连接到数据库注意要查哪个表 with Query1 do begin Close; Sql.text:=' select * from Table where ....'; Open; end;和一般会这么做: query1.close; query1.database := ...;//ADO: query1.connection:=... query1.sql.clear; query1.sql.add('SELECT ...'); query1.open; 有什么区别??
with Query1 do
begin
Close;
Sql.text:=' select * from Table where ....';
Open;
end;
query1.close;
query1.database := ...;//ADO: query1.connection:=...
query1.sql.clear;
query1.sql.add('SELECT ...');
query1.open;
with Query1 do
begin
Close;
Sql.text:=' select * from Table where ....';
Open;
end;和一般会这么做:
query1.close;
query1.database := ...;//ADO: query1.connection:=...
query1.sql.clear;
query1.sql.add('SELECT ...');
query1.open;
有什么区别??