Python SQL日期差异查询

Question

我正在写一个程序来找出今天的日期和出生日期之间的区别。我试着用日期差来计算他们的年龄 一直返回此消息 sqlite3.OperationalError:靠近“（”：语法错误

def workoutage():
    print ("Current date and time: " , datetime.datetime.now())

    print ("Or like this: " ,datetime.datetime.now().strftime("%Y-%m-%d"))
    today = datetime.datetime.now().strftime("%Y-%m-%d")
    print("the date today is ", today)
    con =  lite.connect(db)
    cur = con.cursor()
    ' - DateofBirth ) from Pupils"

    ageQuery = "SELECT pupils.dateofBirth DATEDIFF(day,  '"+today+", 
    pupils.dateofBirth) AS NumberOfDays from Pupils"""
    cur.execute(ageQuery)
    ageQueryList = cur.fetchall()
    showList(ageQueryList)

Answer 1

SQL中的语法错误。在

错误信息非常明确。解析器在需要其他内容时遇到了(，而查询中只有一个(。在

一个select语句是select column, column, ...，因此您需要在pupils.dateofBirth后面加一个逗号。在