Pythonda bitta yozuvni chiqarish

Agar jadvaldan faqat bitta yozuv olish kerak bo'lsa, uni tsikl orqali chiqarish kodni ortiqcha qiladi. Ushbu muammoni hal qilish uchun fetchone usulini qo'llash kerak:

pythonquery = "SELECT * FROM users WHERE id=2"
with connection.cursor(dictionary=True) as cursor:
  cursor.execute(query)
  result = cursor.fetchone()
  
  print(result)

Kod bajarilgandan so'ng faqat bitta yozuv ko'rsatiladi:

python{'id': 2, 'name': 'user2', 'age': 25, 'salary': 500}

Endi so'rovga bir nechta yozuvga mos keladigan shartni qo'yamiz:

pythonquery = "SELECT * FROM users WHERE salary>500"
with connection.cursor(dictionary=True) as cursor:
  cursor.execute(query)
  result = cursor.fetchone()
  
  print(result)

Bunda belgilangan shartlarga mos keladigan faqat birinchi yozuv chiqariladi:

python{'id': 4, 'name': 'user4', 'age': 30, 'salary': 900}