掌握PHP

Question

多個表中的數據假設我有兩個表... 我想發佈日期/通過ID添加或爲了得到兩個表的數據順序！

因此，如果我有

table1 
id msg    date 
2 this is msg  nowdate 

table2 
id comment   date 
2 this is comment nowdate 

那我怎麼才能通過ID得到它在單個查詢訂單？

Answer 1

UNION這個詞，你正在尋找：

(SELECT * FROM table1) UNION (SELECT * FROM table2) ORDER BY id 

Answer 2

select t1.*, (t1.id) as id1, (t2.id) as id2, (t1.date) as date1, (t2.date) as date2, t2.* from table1 t1 inner join table2 t2 on t1.id = t2.id order by t1.id 

$arr = mysql_fetch_asssoc(above_query); 
echo $arr['id1'] // id of first table 
echo $arr['id2'] // id of second table 
echo $arr['msg'] // msg of first table 
echo $arr['comment'] // comment of second table 
echo $arr['date1'] // date of first table 
echo $arr['date2'] // date of second table