Inayotaka kusoma kifaa cha SQL FIRST()

Kikifunzi cha FIRST()

FIRST() kikifunzi kinatoa ukweli wa kwanza kwa eneo lililochaguliwa.

Wahadithi:Inaweza kutumia kiroho ya ORDER BY kuagiza mafikira.

Inayotumiwa kiwango cha SQL FIRST()

SELECT FIRST(jina la siri) FROM jina la tablica

Mfano wa SQL FIRST()

Tunamiliki tablica hii ya "Orders":

O_Id OrderDate OrderPrice Customer
1 2008/12/29 1000 Bush
2 2008/11/23 1600 Carter
3 2008/10/05 700 Bush
4 2008/09/28 300 Bush
5 2008/08/06 2000 Adams
6 2008/07/21 100 Carter

Sasa, tunataka kuona ukweli wa "OrderPrice" kwa kwanza.

Tumekuwa na mawendo ya SQL kama hizo:

SELECT FIRST(OrderPrice) AS FirstOrderPrice FROM Orders

Matokeo ya mafanikio inayokusomwa kama hii:

FirstOrderPrice
1000