eine Abfrage in SQLite-Wert verwenden - Python

Question

Wer weiß, wie eine Abfrage in einem Wert in Python SQLite

Die eroor ich bin immer ist auszuführen: sqlite3.InterfaceError: Fehler 1-Bindungsparameter - wahrscheinlich nicht unterstützten Typs.

mein Code ist hier:

Name = input("Enter the name of the product you want to purchase: >>") 
item = Name 
qty = input("Enter the Quantity of the product you want to purchase: >>") 

today = date.today() 
cursor = db.cursor() 
cursor.execute("SELECT CatID from Products where Name=?",(Name,)) 
result = cursor.fetchall() 

confirm = input("are you sure you want tot buy this product (y/n): >>") 

if confirm == "y": 

    ### In this query where it says result i want to execute the data from the result query 
cursor.execute("INSERT INTO OrderHistory(Username,Category,Date,Qty,ItemHistory) Values(?,?,?,?,?)",(Username,result,today,qty,Name)) 

db.commit() 

print("Product purchased. Thankyou for your order") 

cursor.execute("UPDATE Products SET Qty = (? -1) where Name = ?",(qty,item,)) 

else: 

print("The program will now terminate") 

Answer 1

Sie können auch Ergebnis iterieren:

for row in result: 
    cursor.execute(
    "INSERT INTO OrderHistory(Username,Category,Date,Qty,ItemHistory) SELECT CatID,?,?,?,? FROM Products WHERE Name=?",(Username,row,today,qty,Name)) 
    db.commit()