使用python檢查數據庫中是否存在某個數字並將變量加1

Question

我正在嘗試使用python檢查數據庫中是否存在某個數字。

當它檢測到我要尋找的數字時，我希望它執行variable += 1 。 我沒有任何特定的代碼，但是這是我想要它執行的一些示例代碼。

import pyodbc 

one = 0

conn = pyodbc.connect(r'DSN=MACCD')
cursor = conn.cursor()
cursor.execute('SELECT first,second,third,fourth,fifth FROM ExampDatabase')

if "1 is detected in the database":
    one += 1
print(one)

Answer 1

閱讀pyodbc文檔 ，您可以嘗試以下操作：

import pyodbc 

conn = pyodbc.connect(...)
cursor = conn.cursor()
cursor.execute(...)

# whatever number you are looking for
my_target = ...
target_counter = 0

row_counter = 0
while True:
    row = cursor.fetchone()
    if row is None:
        break

    row_counter += 1
    print(row_counter, row)

    if my_target in row:
        target_counter += 1

print('rows returned:', row_counter)
print('targets found:', target_counter)