mysql>insert into service values-> ('172.16.45.10','3306','mysqld'),-> ('172.16.45.11','3306','mariadb')->; Query OK,2 rows affected (0.00sec) Records:2Duplicates: 0 Warnings: 0 mysql> insert into service values ('172.16.45.10','3306','nginx'); ERROR1062 (23000): Duplicate ent...
| :return: Number of rows affected, if any. | | This method improves performance on multiple-row INSERT and | REPLACE. Otherwise it is equivalent to looping over args with | execute(). 3、实践:多线程读写数据库 实现多线程对同一张表查询数据并拼接结果,将结果写入同一个文件内 3.1 多线程进行...
cursor.execute("select * from test.dbo.JZGK") #执行SQL的查询语句 rows = cursor.fetchall() #获得所有数据,返回一个list对象 for row in rows: #使用for循环对查询的数据遍历并打印出来 print(row.LoopName, row.Press,row.Temp,row.Flow,row.Time_Stamp) 第三,数据库中插入数据 import pyodbc cnxn ...
可以使用insert_dbt()函数，向数据表中添加记录。例如，使用insert_dbt将一条姓名为张三，年龄为20的记...
Python开发常用组件、命令(干货) 1、生成6位数字随机验证码 import random import string def num_code(length=6): """ 生成长度为length的数字随机验证码 :param length: 验证码长度 :return: 验证码 """ return ''.join(random.choice(string.digits) for i in range(0, length)) ...
import mysql.connector cnx = mysql.connector.connect(user='python', password='Passw0rd!Python', host='127.0.0.1', port='6450', database='test') cnx.autocommit = True cursor = cnx.cursor() for i in range(3): query = ("""insert into t1 values(0, @@port, ( ...
For the preceding example, theINSERTstatement sent to MySQL is: INSERTINTOemployees(first_name,hire_date)VALUES('Jane','2005-02-12'),('Joe','2006-05-23'),('John','2010-10-03') With theexecutemany()method, it is not possible to specify multiple statements to execute in theoperationargu...
# Fastest way to INSERT multiple rows. MyModel.insert_many(data_source).execute() 1. 2. 3. 4. 5. 6. 7. 8. insert_many()方法还接收多行元组,同时需要提供一个对应的字段。 # We can INSERT tuples as well... data = [('val1-1', 'val1-2'), ...
cnx = mysql.connector.connect(user='python', password='Passw0rd!Python', host='127.0.0.1', port='6450', database='test') cnx.autocommit = True cursor = cnx.cursor() for i in range(3): query = ("""insert into t1 values(0, @@port, ( ...
localtime()) sql = "insert into cpu_info (hostname,logic_cpu,physical_cpu,cpu_cores,cpu_load,create_time) VALUES " data = "('" + hostname + "','" + logic_cpu + "','" + physical_cpu + "','" + cpu_cores + "','" + cpu_load + "','" + str(createtime) + "'" ...