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SQL QuizSQL FIRST() Function
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The FIRST() Function
The FIRST() function returns the first value of the selected column.
SQL FIRST() Syntax
| SELECT FIRST(column_name) FROM table_name |
SQL FIRST() Example
We have the following "Orders" table:
| O_Id | OrderDate | OrderPrice | Customer |
|---|---|---|---|
| 1 | 2008/11/12 | 1000 | Hansen |
| 2 | 2008/10/23 | 1600 | Nilsen |
| 3 | 2008/09/02 | 700 | Hansen |
| 4 | 2008/09/03 | 300 | Hansen |
| 5 | 2008/08/30 | 2000 | Jensen |
| 6 | 2008/10/04 | 100 | Nilsen |
Now we want to find the first value of the "OrderPrice" column.
We use the following SQL statement:
| SELECT FIRST(OrderPrice) AS FirstOrderPrice FROM Orders |
Tip: Workaround if FIRST() function is not supported:
| SELECT OrderPrice FROM Orders ORDER BY O_Id LIMIT 1 |
The result-set will look like this:
| FirstOrderPrice |
|---|
| 1000 |
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