
sql - How to select only the first rows for each unique value of a ...
By imposing where rownum = 1, one can select the CName whose AddressLine comes first alphabetically. If the order by was desc, then it would pick the CName whose AddressLine comes last alphabetically. This has the added benefit of not restricting you to only the first row.
SQL query to return one single record for each unique value in a column
Aug 22, 2015 · Use a temp table or table variable and select a distinct list of names into that. Use that structure then to select the top 1 of each record in the original table for each distinct name.
SQL query to retrieve only one occurrence for each id
Jan 27, 2012 · Try aggregating with GROUP BY and using aggregate functions like MIN(). SELECT seriesKey, MIN(eventStart) eventStart FROM events GROUP BY seriesKey; This results in:
Rolling up multiple rows into a single row and column for SQL Server
Dec 19, 2024 · Learn how to roll-up multiple rows into one row and one column with concatenation in SQL Server with FOR XML, STUFF and STRING_AGG.
sql server - How to select only one row for each distinct value ...
Jan 10, 2020 · Use GROUP BY and select values for each field using proper aggregate function, or select one row by its ROW_NUMBER while sorting by some criteria. – Akina Commented Jan 10, 2020 at 18:01
How to Select the nth Row in a SQL Server Database Table?
Mar 12, 2024 · In SQL Server, retrieving rows that contain the maximum value for a specific column for each distinct value in another column can be a common and challenging task. This process is done by identifying the maximum value for each group and then selecting the corresponding rows.
sql server - Selecting Only one value in duplicate record
Jun 3, 2019 · If you only want the row with ALL or some other row if that doesn't exist, you can use an order by with an expression and then limit the result to just one row. select * from the_table where mod_nm = 'COST OUT MODULE' order by case when product_line = 'ALL' then 999 else 1 end fetch first 1 rows only;
Select values of a column into one row - Sql Server
Sep 24, 2015 · I want to select in one row the value of a column that appears in multiple rows, I have the table Solution: I want to group the records by StudentID and SongID. The expected output is: There are 3 records by StudentID-SongID at the most. I'm using MSSQL Server 2012.
sql server - SQL query to return only 1 record per group ID
Dec 23, 2009 · I'm looking for a way to handle the following scenario. I have a database table that I need to return only one record for each "group id" that is contained within the table, furthermore the record that is selected within each group should be the oldest person in the household.
SSMS- I want to pickup only first record and remove duplicate …
Mar 27, 2023 · You can use a subquery to select only the first entry for each employee ID and then delete all other entries from the table. Here's an example SQL query that should achieve this: This query uses a Common Table Expression (CTE) to assign a row number to each attendance entry for each employee ID, based on the order of their attendance date and time.
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