LEFT
Misol
Stringdan 3 ta belgini ajratib olish (chapdan boshlab):
SELECT LEFT('SQL Tutorial', 3) AS ExtractString;
O‘zingiz sinab ko‘ring »
Ta’rif va qo‘llanilishi
LEFT() funksiyasi stringdan (chapdan boshlab) ma’lum sondagi belgilarni ajratib oladi.
Sintaksis
LEFT(string, number_of_chars)
Parametr qiymatlari
| Parametr | Tavsif |
|---|---|
| string | Majburiy. Olib olinadigan string |
| number_of_chars | Majburiy. Chiqariladigan belgilar soni. Agar bu son stringdagi belgilar sonidan oshsa, funksiya butun stringni qaytaradi |
Texnik tafsilotlar
| Qo‘llab-quvvatlaydigan tizimlar: | SQL Server (2008 dan boshlab), Azure SQL Database, Azure SQL Data Warehouse, Parallel Data Warehouse |
|---|
Ko‘proq misollar
Misol
CustomerName ustunidagi matndan 5 ta belgini ajratib olish (chap tomondan boshlab):
SELECT LEFT(CustomerName, 5) AS ExtractString
FROM Customers;
O‘zingiz sinab ko‘ring »
Misol
Stringdan 100 ta belgini (chapdan boshlab) ajratib oling:
SELECT LEFT('SQL Tutorial', 100) AS ExtractString;
O‘zingiz sinab ko‘ring »
W3Schools Pathfinder
Yutuqlaringizni kuzating – bu bepul!