Efficiently get records with latest timestamp per group
82713
Select ONE most recent post for each author
2789
Fetch the row which has the Max value for a column
118546
In SQL, how can you "group by" in ranges?
118640
PostgreSQL: running count of rows for a query 'by minute'
689
Using LIMIT within GROUP BY to get N results per group?
115519
How can "set timestamp" be a slow query?
4994
Retrieving n rows per group
121572
How to get the maximum value by group
85227
MySQL GROUP BY DateTime +/- 3 seconds
69755
SELECT only latest record of an ID from given rows
16238
LINQ GroupBy continuous time
43786
SQL group by day, show orders for each day
17434
Get rows with most recent date for each different item
72412
Query that converts a timestamp to a date
90603
Dealing with timestamps in R
144830
How to select the most recent set of dated records from a mysql table
19053
SQL query: Delete all records from the table except latest N?