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What is select top in SQL Server (Transact-SQL)?

The SELECT TOP clause is used to specify the number of records to return. The SELECT TOP clause is useful on large tables with thousands of records. Returning a large number of records can impact performance. Note: Not all database systems support the SELECT TOP clause.


How do you SELECT the top value in SQL?

Example - Using TOP PERCENT keyword For example: SELECT TOP(10) PERCENT contact_id, last_name, first_name FROM contacts WHERE last_name = 'Anderson' ORDER BY contact_id; This SQL SELECT TOP example would select the first 10% of the records from the full result set.

What is top operator in SQL?

Basics of TOP Operator The TOP keyword in SQL Server is a non-ANSI standard expression to limit query results to some set of pre-specified rows. As an argument, it takes 0 to positive Bigint (9223372036854775807) and anything beyond or less gives an error message.

What is the difference between SELECT top and limit in SQL?

The LIMIT is used to retreive the records from one or more tables from the database. And we can limit the no of records returned from the database. Most of the SQL databases are not support the LIMIT command. The SELECT TOP clause is used to specify the number of records to return.

What is top and offset in SQL?

Or, use TOP to specify the rows affected by an INSERT, UPDATE, MERGE, or DELETE statement. Applies to: All SQL Server and Azure SQL Databases. OFFSET: Specifies the number of rows to skip before it starts to return rows from the query expression.

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