MySQL查询不返回任何东西或返回错误的数据

Question

I have two tables. Table_1 have this fields.

table_1_id
name
image
adres

Table_2

table_2_id
name
email
phone
comment
datetime
need_id

I want to make when I click on the ID_1 form table_1 to load me all rows from table_2 which have table_1_id = 1 I've tried with this query

SELECT t1*, t2.* FROM table_1 t1, table_2 t2
                 WHERE t1.table_1_id = t2.need_id ORDER BY `DateTime` DESC

and show blank page. Then I tried like this

SELECT t1.*, t2.* FROM table_1 t1
 JOIN table_2 t2 ON t1.table_1_id = t2.need_id ORDER BY ` DateTime` DESC 

This whatever I click is returned first 5 results from database and that's it.

Answer 1

Assuming you have ID_1 , you don't need to involve table_1 in the query:

SELECT * FROM table_2
WHERE need_id = ID_1 
ORDER BY `DateTime` DESC