2015. 6. 20. 18:01

http://www.w3schools.com/sql/sql_func_first.asp


The FIRST() Function

The FIRST() function returns the first value of the selected column.

SQL FIRST() Syntax

SELECT FIRST(column_name) FROM table_name;

Note: The FIRST() function is only supported in MS Access.


SQL FIRST() Workaround in SQL Server, MySQL and Oracle

SQL Server Syntax

SELECT TOP 1 column_name FROM table_name
ORDER BY column_name ASC;

Example

SELECT TOP 1 CustomerName FROM Customers
ORDER BY CustomerID ASC;

MySQL Syntax

SELECT column_name FROM table_name
ORDER BY column_name ASC
LIMIT 1;

Example

SELECT CustomerName FROM Customers
ORDER BY CustomerID ASC
LIMIT 1;

Oracle Syntax

SELECT column_name FROM table_name
WHERE ROWNUM <=1
ORDER BY column_name ASC;

Example

SELECT CustomerName FROM Customers
WHERE ROWNUM <=1
ORDER BY CustomerID ASC;

Demo Database

In this tutorial we will use the well-known Northwind sample database.

Below is a selection from the "Customers" table:

CustomerIDCustomerNameContactNameAddressCityPostalCodeCountry
1

Alfreds FutterkisteMaria AndersObere Str. 57Berlin12209Germany
2Ana Trujillo Emparedados y heladosAna TrujilloAvda. de la Constitución 2222México D.F.05021Mexico
3Antonio Moreno TaqueríaAntonio MorenoMataderos 2312México D.F.05023Mexico
4

Around the HornThomas Hardy120 Hanover Sq.LondonWA1 1DPUK
5Berglunds snabbköpChristina BerglundBerguvsvägen 8LuleåS-958 22Sweden

SQL FIRST() Example

The following SQL statement selects the first value of the "CustomerName" column from the "Customers" table:

Example

SELECT FIRST(CustomerName) AS FirstCustomer FROM Customers;

Try it yourself »


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