How do I get the latest record by group in SQL?

How do I get the latest record by group in SQL?

id category_id post_title The group by will always return the first record in the group on the result set. SELECT id, category_id, post_title FROM posts WHERE id IN ( SELECT MAX(id) FROM posts GROUP BY category_id ); This will return the posts with the highest IDs in each group.

How do I SELECT the last entry in SQL?

to get the last row of a SQL-Database use this sql string: SELECT * FROM TableName WHERE id=(SELECT max(id) FROM TableName);

How do you SELECT top 1 record in each group in SQL?

[InventoryAllocations] ORDER BY ROW_NUMBER() OVER(PARTITION BY DocumentID ORDER BY [RecordTimeStamp] DESC); TOP 1 works with WITH TIES here. WITH TIES means that when ORDER BY = 1 , then SELECT takes this record (because of TOP 1 ) and all others that have ORDER BY = 1 (because of WITH TIES ).

How do I return most recent records in SQL?

Use the aggregate MAX(signin) grouped by id. This will list the most recent signin for each id . To get the whole single record, perform an INNER JOIN against a subquery which returns only the MAX(signin) per id.

How can I see last inserted record in MySQL?

If you are AUTO_INCREMENT with column, then you can use last_insert_id() method. This method gets the ID of the last inserted record in MySQL. Insert some records in the table using insert command. Display all records from the table using select statement.

How do I find the last updated record in SQL Server?

The simplest way to get the last updated record is by using the date or DateTime column in SQL Server. First, we should have a last modified column in SQL Server that will automatically have a DateTime value based upon the last modification.

How do I get last 3 records in SQL?

SELECT * FROM (select * from suppliers ORDER BY supplier_name DESC) suppliers2 WHERE rownum <= 3 ORDER BY rownum DESC; Notice that although you want the last 3 records sorted by supplier_name in ascending order, you actually sort the supplier_name in descending order in this solution.

How do I get last 10 records in SQL?

mysql> SELECT * FROM ( -> SELECT * FROM Last10RecordsDemo ORDER BY id DESC LIMIT 10 -> )Var1 -> -> ORDER BY id ASC; The following is the output that displays the last 10 records. We can match both records with the help of the SELECT statement.

How do I get top 10 records in SQL Developer?

Returning TOP N Records

1. Microsoft SQL Server SELECT TOP 10 column FROM table.
2. PostgreSQL and MySQL SELECT column FROM table LIMIT 10.
3. Oracle SELECT column FROM table WHERE ROWNUM <= 10.
4. Sybase SET rowcount 10 SELECT column FROM table.
5. Firebird SELECT FIRST 10 column FROM table.

How do I SELECT the top 1st row in SQL?

SQL SELECT TOP Clause

1. SQL Server / MS Access Syntax. SELECT TOP number|percent column_name(s) FROM table_name;
2. MySQL Syntax. SELECT column_name(s) FROM table_name. LIMIT number;
3. Example. SELECT * FROM Persons. LIMIT 5;
4. Oracle Syntax. SELECT column_name(s) FROM table_name. WHERE ROWNUM <= number;
5. Example. SELECT * FROM Persons.

How do you select a record with the latest date?

1 Answer

1. select t.username, t.date, t.value.
2. from MyTable t.
3. inner join (
4. select username, max(date) as MaxDate.
5. from MyTable.
6. group by username.
7. ) tm on t.username = tm.username and t.date = tm.MaxDate.

How do I select the latest record from a table in MySQL?

To get the last record, the following is the query. mysql> select *from getLastRecord ORDER BY id DESC LIMIT 1; The following is the output.

How to get last record in each group in MySQL?

Sometimes you may need to select most recent record or get latest record for each date,user, id or any other group. Here’s the SQL query to get last record in each group in MySQL, since there is no built-in function for it. You can also use it to select last row for each group in PostgreSQL, SQL Server & Oracle.

How to get the last record in each group?

Let’s say you want to get last record in each group, that is, for each product. First we use GROUP BY to get most recent date for each group. Now that we know the most recent date for each group, we join this result with our original table to get latest record by date group.

How to write greatest N per group query?

With this standard syntax, we can write greatest-n-per-group queries: WITH ranked_messages AS ( SELECT m.*, ROW_NUMBER() OVER (PARTITION BY name ORDER BY id DESC) AS rn FROM messages AS m ) SELECT * FROM ranked_messages WHERE rn = 1; Below is the original answer I wrote for this question in 2009:

How to omit columns in a group in SQL?

The latest Standard SQL allows you to omit columns in the GROUP BY and include them in the SELECT or HAVING clause, provided they are functionally dependant on the GROUP BY combination – and thus only deterministic results would be returned.