How to take out the last time SQL
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A table
id Date_time Log 1 01.10.2021 15:30 Действие 1 1 01.10.2021 15:35 Действие 2 2 02.10.2021 10:00 Действие 1 2 02.10.2021 12:00 Действие 2
For each id, the last log, that is, the exit should be:
id Date_time Log 1 01.10.2021 15:35 Действие 2 2 02.10.2021 12:00 Действие 2
Zalil http://sqlfiddle.com/#!18/16a42/1 :
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Use CTE and final function https://docs.microsoft.com/en-us/sql/t-sql/functions/row-number-transact-sql?view=sql-server-ver15 :
with tab as ( select id, Date_time, Log, row_number() over(partition by id order by Date_time desc) as rn from table_name ) select id, Date_time, Log from tab where rn = 1
http://sqlfiddle.com/#!18/c7836/1