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This question already has answers here: Fetch the row which has the Max value for a column (35 answers) Closed 4 years ago. I’m trying to list the latest...
Suppose I have pandas DataFrame like this: df = pd.DataFrame({'id':[1,1,1,2,2,2,2,3,4],'value':[1,2,3,1,2,3,4,1,1]}) which looks like: id value 0 1 1 1 1 2 2 1 3 3 2 1 4 2...
I want to return top 10 records from each section in one query. Can anyone help with how to do it? Section is one of the columns in the...
How do you get the rows that contain the max value for each grouped set? I’ve seen some overly-complicated variations on this question, and none with a good answer....
Is there a nice way in MySQL to replicate the SQL Server function ROW_NUMBER()? For example: SELECT col1, col2, ROW_NUMBER() OVER (PARTITION BY col1, col2 ORDER BY col3 DESC)...
I have a table that is a collection entries as to when a user was logged on. username, date, value -------------------------- brad, 1/2/2010, 1.1 fred, 1/3/2010, 1.0 bob, 8/4/2009,...
Suppose I have a table of customers and a table of purchases. Each purchase belongs to one customer. I want to get a list of all customers along with...
The following query: SELECT year, id, rate FROM h WHERE year BETWEEN 2000 AND 2009 AND id IN (SELECT rid FROM table2) GROUP BY id, year ORDER BY id,...
Table: UserId, Value, Date. I want to get the UserId, Value for the max(Date) for each UserId. That is, the Value for each UserId that has the latest date....
I have a table which I want to get the latest entry for each group. Here’s the table: DocumentStatusLogs Table |ID| DocumentID | Status | DateCreated | | 2|...