conn = sqlite3.connect(path) # 创建连接 cursor = conn.cursor() # 创建游标 ret = fun(cursor, *args, **kwargs) conn.commit() # 提交事务 conn.rollback() # 回滚事务,会将数据库返回到上一次提交事务的时候 cursor.close() conn.close() return ret return inner return outer2...
conn= sqlite3.connect(db_name)#数据库文件是test.db,不存在,则自动创建cursor =conn.cursor()#插入一条记录: cursor.execute('insert into user (id, name) values (\'1\', \'Michael\')')cursor.execute("insert into user values (?, ?);", (values[0], values[1]))print(cursor.rowcount)#...
# 导入内置模块sqlite3 import sqlite3 首先,我们使用 sqlite3 的 connnect() 方法创建一个数据库连接对象,如果数据库不存在,就自动在对应目录下新建一个数据库文件 # 创建数据库连接对象,如果数据库不存在,就自动新建一个数据库文件 # 还可以指定其他参数,包含:超时时间 self.conn = sqlite3.connect(self.path...
connection=sqlite3.connect(':memory:') withconnection: connection.execute( 'CREATE TABLE events(ts, msg, PRIMARY KEY(ts, msg))') try: withconnection: connection.executemany('INSERT INTO events VALUES (?, ?)',[ (1,'foo'), (2,'bar'), (3,'baz'), (1,'foo'), ]) except(sqlite3....
conn = sqlite3.connect(self.db_file) print(f"Connected to {self.db_file}") return conn except sqlite3.Error as e: print(e) return None def initialize_database(self): # 初始化数据库,包括创建表格 if self.conn: create_table_sql = """ ...
问如何在Python中模拟sqlite3.connectEN下面的代码展示了模拟sqlite3.connect的两种方式。
engine = create_engine('sqlite:///my_database.db', pool_size=10) 使用方法也比较简单 : fromsqlalchemyimportcreate_engine,text engine = create_engine('sqlite:///my_database.db', pool_size=10) defconcurrent_access(): withengine.connect(...
1.连接sqlite # coding=utf-8 # http://www.runoob.com/sqlite/sqlite-python.html import sqlite3 import traceback try: # 如果表不存在,就创建 with sqlite3.connect('test.db') as conn: print("Opened database successfully") # 删除表
import sqlite3from sqlite3 import Errordef backup_db(db_path, backup_path):if not sqlite3.sqlite_version_info >= (3, 3, 4):raise EnvironmentError("Backup requires SQLite version 3.3.4 or greater.")try:conn = sqlite3.connect(db_path)cursor = conn.cursor()with open(backup_path, "wb"...