I want to find the rows from a table that have the max date_time for each recipe. I know I've done this before with group by and having, but I can't seem to get it to work now. I get the correct row id, but not the correct date_time. I'm sure I'm missing something simple.
For purposes of showing an example, I'll use one recipe, 19166. For that recipe here's the row I would want: mysql> select id, MAX(date_time) from data_cstmeta where recipe_id = 19166; +---------+---------------------+ | id | MAX(date_time) | +---------+---------------------+ | 1151701 | 2013-02-07 18:38:13 | +---------+---------------------+ 1 row in set (0.01 sec) I would think this query would give me that - it gives me the correct id, but not the correct date_time: mysql> SELECT id, date_time as MaxDateTime FROM data_cstmeta where recipe_id = 19166 group by recipe_id HAVING MIN(date_time); +---------+---------------------+ | id | MaxDateTime | +---------+---------------------+ | 1151701 | 2010-12-13 16:16:55 | +---------+---------------------+ 1 row in set (0.01 sec) How can I fix this? Thanks! -larry
