在前端搜索中显示最新的mysql行

Question

Can someone help me show the newest row ids when searching the database. Here is my code, limited to showing 100 results, but it shows the oldest rows first. I would like to show the newest rows. Keep in mind i do not have a time stamp.

$query_str = "SELECT * FROM puppy_data 
              WHERE (`breed` LIKE '%".$query."%') 
              OR (`sex` LIKE '%".$query."%') 
              LIMIT 100 " ;

Answer 1

Try this (assuming you have a row called 'id').

$query_str = "SELECT * FROM puppy_data
              WHERE (breed LIKE '%".$query."%')
              OR (sex LIKE '%".$query."%')
              ORDER BY id SORT DESC LIMIT 100" ;

Answer 2

Use the ORDER BY <column(s)> DESC clause to sort by one or more columns in descending order. This works if you have an auto incrementing ID column, or a DateTime created_at column. Remember that ideally the column you are ordering by should be an indexed one.

SELECT * FROM puppy_data
WHERE (breed LIKE '%".$query."%')
OR (sex LIKE '%".$query."%')
ORDER BY id DESC 
LIMIT 100

https://dev.mysql.com/doc/refman/5.7/en/sorting-rows.html