Feb 12, 2014 · How do I select the first row per group in an SQL Query? Asked 16 years, 1 month ago Modified 1 year ago Viewed 70k times

In the table, one customer like John Smith can have multiple addresses. I need the SELECT query for this table to return only first row found where there are duplicates in 'CName'. For this table …

Jul 31, 2018 · How to get the first row values in sql server query Asked 7 years, 5 months ago Modified 7 years, 5 months ago Viewed 19k times

Header refer to the Row number (s) to use as the column names. Make no mistake, the row number is not the df but from the excel file (0 is the first row, 1 is the second and so on). This …

So, how do I get the value at an nth row of a given column in Pandas? (I am particularly interested in the first row, but would be interested in a more general practice as well).

Mar 28, 2020 · First row to header with pandas Asked 5 years, 9 months ago Modified 3 years, 7 months ago Viewed 44k times

Aug 27, 2020 · SELECT * FROM ( SELECT a,b,c, ROW_NUMBER() OVER ( PARTITION by a, b ORDER BY date DESC) as row_num FROM T ) WHERE row_num =1 But it probably does extra …

Sep 28, 2009 · In SQL Server, if you have a table with columns timestamp and action, your first query generates one row for every row in events. On the first row, created_dt is the first …

Sep 27, 2010 · I'd like to select the first row of each set of rows grouped with a GROUP BY. Specifically, if I've got a purchases table that looks like this: SELECT * FROM purchases; My …

id value 1 first 2 first 3 first 4 second 5 first 6 first 7 fourth I tried following, which only gives the first row of the DataFrame.