How to use Subquery with LIMIT and ORDER BY In SQL

Here we will add a subquery that will look for the last record match in Table B for every record in Table A with ORDER BY Descending and LIMIT options

SELECT *
FROM [Table A] A
JOIN [Table B] B ON A.PrimaryKey = B.ForeignKey
WHERE B.PrimaryKey = (
SELECT PrimaryKey
FROM [Table B]
WHERE ForeignKey = A.PrimaryKey
ORDER BY PrimaryKey DESC
OFFSET 0 ROWS FETCH NEXT 1 ROWS ONLY
);

Output:

Last Records with Subquery with LIMIT and ORDER BY

How to Select the Last Records in a One to Many Relationship using SQL Server

In database management, one-to-many relationships are common, where a record in one table can correspond to multiple records in another table. When dealing with such relationships, it’s often necessary to select the last records from the “many” side for each record on the “one” side.

In this article, we’ll explore how to achieve this using different approaches and their examples too.

Similar Reads

How to Select the Last Records in a One-to-Many Relationship?

One-to-many relationships signify that each record in one table can correspond to multiple records in another table. For instance, consider two tables A and B, where the Primary key column of A is referenced as a Foreign key in B....

1. Using Subquery with LIMIT and ORDER BY

Here we will add a subquery that will look for the last record match in Table B for every record in Table A with ORDER BY Descending and LIMIT options...

2. Using Subquery with Max Aggregate Function and GROUP BY

Here we will add GROUP BY clause on TableA.PrimaryKey to the join select statement between Table A and Table B and pick the Max per group...

3. Using Co-related Sub Query

Here, we will return the record that matches with MAX PrimaryKey in Table B in Sub Query...

4. Using Left Join Logic

Here we will use Left join Table with 2 Table B and for second left join we will add an extra condition as records with PrimaryKey Column in 3rd table of Join sequence should be greater than PrimaryKey Column of 2nd Table ie. Table B. This create some NULL records in 3rd used table which becomes our output....

Conclusion

In conclusion, SQL Server offers several methods to select the last records in a one-to-many relationship. Whether using subqueries, aggregate functions, or left join logic, these approaches provide flexibility and efficiency in fetching the desired data. Understanding these techniques enables database managers to effectively handle such relationships and retrieve the most relevant information for their needs....