sqlite 数据库Python文件

xu3bshqb 于 2023-01-31 发布在 SQLite

关注(0)|答案(2)|浏览(140)

如何在python中创建数据库文件？
我不太清楚如何使用SQLite将Python链接到数据库，因为updateDB函数不起作用。这段代码应该起作用，但更新没有正确工作。
我错过了什么？

import sqlite3

class Database:
    def __init__(self):
        self.DBName ='BUYHIRELtd.db'

    def connect(self):
        conn = None
        try: 
            conn = sqlite3.connect(self.DBName)
        except Exception as e:
            print(e)
        return conn

    def queryDB(self, command, params=[]):
        conn = self.connect()
        cur = conn.cursor()
        cur.execute(command, params)
        result = cur.fetchall()
        self.disconnect(conn)
        return result

    def updateDB(self, command, params=[]):
        conn = self.connect()
        cur = conn.cursor()
        cur.execute(command, params)
        result = cur.fetchall()
        self.disconnect(conn)
        return result

    def disconnect(self, conn):
        conn.close()

sqlite

来源：https://stackoverflow.com/questions/75256368/database-python-file

2条答案

按热度按时间

kqqjbcuj1#

缺少conn.commit，无法保存对数据库的更改。

import sqlite3

class Connector:
    dbName = "Database.db"

    def connect(self):
        conn = None
        try:
            conn = sqlite3.connect(self.dbName)
        except Exception as e:
            print(e)
        return conn

    def disconnect(self, conn):
        conn.close()

    def queryDB(self, command, params=[]):
        conn = self.connect()
        cur = conn.cursor()

        cur.execute(command, params)
        result = cur.fetchall()

        self.disconnect(conn)
        return result

    def updateDB(self, command, params=[]):
        conn = self.connect()
        cur = conn.cursor()

        cur.execute(command, params)
        conn.commit()
        result = cur.fetchall()

        self.disconnect(conn)
        return result

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vq8itlhq2#

请确保您正在www.example.com文件的顶部导入sqlite3database.py，否则命令将无法运行。

赞(0）回复(0）举报 2023-01-31