python代码
import mysql.connector
# mysql1.py
config = {
‘host‘: ‘127.0.0.1‘,
‘user‘: ‘root‘,
‘password‘: ‘root‘,
‘port‘: 3306,
‘database‘: ‘test‘,
‘charset‘: ‘utf8‘
}
try:
cnn = mysql.connector.connect(**config)
except mysql.connector.Error as e:
print(‘connect fails!{}‘.format(e))
cursor = cnn.cursor()
try:
sql_query = ‘select name,age from stu ;‘
cursor.execute(sql_query)
for name, age in cursor:
print (name, age)
except mysql.connector.Error as e:
print(‘query error!{}‘.format(e))
finally:
cursor.close()
cnn.close()
操作结果
(u‘xiaoming‘, 10) (u‘rose‘, 18) (u‘jack‘, 19) (u‘fang‘, 20) (u‘Liang‘, 40) (u‘Age‘, None)
更加规范的操作,代码如下
def select2(sql_cmd, param):
"""
:param sql_cmd sql 命令
:param param 参数
"""
try:
conn = mysql.connector.connect(**config)
except mysql.connector.Error as e:
print(‘connect fails!{}‘.format(e))
cursor = conn.cursor()
try:
cursor.execute(sql_cmd, param)
except mysql.connector.Error as e:
print(‘connect fails!{}‘.format(e))
finally:
cursor.close()
conn.close()
if __name__ == ‘__main__‘:
sql_cmd = "insert into stu (name, age, sex) value (%s, %s, %s)"
param = (‘yangguo‘, 28, ‘male‘)
select2(sql_cmd=sql_cmd, param=param) # 将命令和参数分隔开,操作起来更加安全
原文:https://www.cnblogs.com/everest7/p/10666374.html