SQlite3没有显示在代码PYTHON的末尾

Question

createDb = sqlite3.connect("hhh.db")
queryCurs = createDb.cursor()

def createTable():
    queryCurs.execute(''' CREATE TABLE maths
    (id INTEGER PRIMARY KEY, userName TEXT, score INTERGER)''')

def addCust(userName,):
    queryCurs.execute("""INSERT INTO maths (userName, score)
    VALUES(?,?)""",(userName, score))

def main():
    createTable()
    addCust("\n, They scored TEXT, score ITERGER, out of 10 TEXT")
    createDb.commit()

    queryCurs.execute("SELECT * FROM maths")

    for i in queryCurs:
      print ("\n")
      for j in i:
          print (j)

queryCurs.close()

It does not display the information that i input into the table. The code just simply ends without printing the Database information.

Im am a novice so please explain fully

Answer 1

Does this work ? I have moved the creation of the cursor into the main method. In your implementation there is a chance that the cursor is closed before main is executed depending on the location of your main() method.

def createTable():
    queryCurs.execute(''' CREATE TABLE maths
    (id INTEGER PRIMARY KEY, userName TEXT, score INTERGER)''')

def addCust(userName,):
    queryCurs.execute("""INSERT INTO maths (userName, score)
    VALUES(?,?)""",(userName, score))

def main():
    createTable()

    createDb = sqlite3.connect("hhh.db")
    queryCurs = createDb.cursor()

    addCust("\n, They scored TEXT, score ITERGER, out of 10 TEXT")
    createDb.commit()

    queryCurs.execute("SELECT * FROM maths")

    for i in queryCurs:
      print ("\n")
      for j in i:
          print (j)

    queryCurs.close()