How Do I Replicate LINQ's .Skip() and .Take() in SQL?

SQL Equivalents of LINQ's .Skip() and .Take() Methods

LINQ's .Skip() and .Take() methods allow for flexible data retrieval by selecting a subset of results from a sequence, skipping a specified number of items and retrieving a specified number of items, respectively. This simplifies data retrieval and optimizes performance, especially when working with large datasets.

For SQL, the equivalent functionality to .Skip() is achieved using the OFFSET clause. It specifies the number of rows to skip before starting to retrieve results. For instance, to skip the first 1000 rows in a database table:

SELECT *
FROM Sales.SalesOrderHeader
OFFSET 1000 ROWS

To implement .Take(), SQL uses the FETCH NEXT clause, which specifies the number of rows to retrieve. Combining OFFSET and FETCH NEXT enables you to skip and retrieve a specific number of rows:

SELECT *
FROM Sales.SalesOrderHeader
OFFSET 1000 ROWS
FETCH NEXT 100 ROWS ONLY

This SQL statement skips the first 1000 rows and retrieves the next 100 rows from the SalesOrderHeader table, mimicking LINQ's .Skip(1000).Take(100) functionality.

By leveraging the OFFSET and FETCH NEXT clauses in SQL Server 2012 and above, you can efficiently retrieve a subset of data without the need to select the entire table into memory. This optimizes performance, especially when dealing with large datasets.

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