Retrieve Specific Rows in SQL: OFFSET-FETCH vs. ROW_NUMBER!
"In this video, we'll explore two methods for retrieving a specific range of rows from a SQL query result set. Whether you're using SQL Server 2012 onwards or working with older versions, these techniques will help you paginate your data efficiently. Learn how to use the OFFSET-FETCH clause and the ROW_NUMBER function to get the exact rows you need from a large dataset. Perfect for beginners and advanced users looking to optimize their SQL queries.
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--How can you retrieve a specific range of records from a database table, such as the 6th to 10th records?
--This is especially useful when working with large data sets and paginating results.
-- Creating a sample table
CREATE TABLE SampleData (
ID INT PRIMARY KEY,
Name VARCHAR(100)
);
-- Inserting sample data
INSERT INTO SampleData (ID, Name) VALUES
(1, 'Database1'),
(2, 'Database2'),
(3, 'Database3'),
(4, 'Database4'),
(5, 'Database5'),
(6, 'Database6'),
(7, 'Database7'),
(8, 'Database8'),
(9, 'Database9'),
(10, 'Database10');
select * from sampledata
--Method1
SELECT *
FROM SampleData
ORDER BY id
OFFSET 5 ROWS
FETCH NEXT 5 ROWS ONLY
--Method2
SELECT * FROM (
SELECT *, ROW_NUMBER() OVER (ORDER BY id) as row FROM SampleData
) a WHERE a.row (greaterthan) 5 and a.row (lessthan)= 10
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