user='your_username',password='your_password',database='your_database',charset='utf8mb4',cursorclass=pymysql.cursors.DictCursor)id_list=[1,2,3]# 要查询的 ID 列表# 构建查询语句sql=f"SELECT * FROM users WHERE id IN ({','.join(map(str,id_list))})"try:withconnection.cursor()ascurs...
for row in data: cursor.execute(sql, row) 1. 2. 3. 4. 提交事务,关闭游标和连接 #提交事务conn.commit()#关闭游标和连接cursor.close() conn.close() 1. 2. 3. 4. 5. 6. 数据库表关系图 PRODUCThascontainsincludesincludes 通过以上步骤,你可以成功使用pymysql插入list数据到数据库中。希望对你有...
cursor.execute(sql, data)# 指定sql语句# 提交事务才可以生效conn.commit()# (2)方案2 : 一次性批量插入数据name_list = [iforiin"Ptrjkl"] password_list = [str(i)foriinrange(6)] data_all =list(zip(name_list, password_list))# [('c', '0'), ('h', '1'), ('o', '2'), ('s...
() #执行结果转化为dataframe df = pd.DataFrame(list(result)) # 关闭连接 db.close() #返回dataframe return result,col sql1 = """select comment_sql from etl_event_head where event_id=6001""" resu,co = execude_sql(sql1) for (test,) in resu: result,col = execude_sql(test) print(...
cursor() for i in range(len(condition_list)): sql = "UPDATE %s SET user_no = '%s' WHERE user_id = '%s'" % (table_name, update_list[i], condition_list[i]) print('执行sql语句:' + sql) try: cursor.execute(sql) db.commit() print("数据更新成功" + str(i+1) + '条') ...
sql="SELECT * FROM EMPLOYEE WHERE INCOME > %s"%(1000)try:# 执行SQL语句 cursor.execute(sql)# 获取所有记录列表 result1=cursor.fetchone()result2=cursor.fetchmany(2)results=cursor.fetchall()print(result1)print(result2)print(results)except:print("Error: unable to fetch data")# 关闭数据库连接...
if type(args) is not list: return # select * from user where id in (1,2,3) in_arg = ",".join([str(i) for i in args]) print("in查询SQL:", sql) print("in查询参数:", in_arg) sql = sql % (in_arg,) print("in查询最终SQL:", sql) ...
# 4. 执行sql语句sql="select * from students where name = '%s'; "%"张三' or 1 = 1 or '"cursor.execute(sql)print(sql)# 获取查询结果result=cursor.fetchall()forrowinresult:print(row) # 5. 关闭游标cursor.close() # 6. 关闭连接conn.close() ...
I have table with the log of the actions made by an user, the action types are create, confirm and cancel, something like this: So, i would like to get the number of actions by type that where made by... Streaming WebRadio
isnotlist: return #使用cursor()方法创建一个游标对象cursor cursor=db.cursor() try: #执行sql语句 cursor.executemany(sql,args) #提交到数据库执行 db.commit() except: #如果发生错误则回滚 db.rollback() deffetchmany(db,sql,args=None): iftype(args)isnotlist: return #select*fromuserwhereidin(...