通过使用mysql-python执行Select语句,不会得到任何结果
我正在使用python-2.7和newbie-to-mysql/mysql python连接器 我只想通过使用下面的查询检索数据- 从通过使用mysql-python执行Select语句,不会得到任何结果,python,mysql,mysql-python,Python,Mysql,Mysql Python,我正在使用python-2.7和newbie-to-mysql/mysql python连接器 我只想通过使用下面的查询检索数据- 从d\u详细信息 但它给出/返回无。下面是我的代码- def getdbconnection(self): try: self.cnx = mysql.connector.connect(user='abc',password='xxx',host = 'localhost',port = 'xxx', database='details
d\u详细信息
但它给出/返回无。下面是我的代码-
def getdbconnection(self):
try:
self.cnx = mysql.connector.connect(user='abc',password='xxx',host = 'localhost',port = 'xxx', database='details',buffered=True)
print "Done"
self.cursor = self.cnx.cursor()
except MySQLdb.Error as error:
print "ERROR IN CONNECTION"
def selectst(self):
try:
print "S E L E C T"
self.d_deta = self.cursor.execute("SELECT d_id,d_link,d_name FROM `d_details`")
print self.d_deta
except MySQLdb.Error as error:
print "---------------------"""
print(error)
self.cnx.commit()
输出是
Done
S E L E C T
None
尽管查询在workbench中运行良好
欢迎以任何形式提供帮助/指导。您应该像这样修改代码 代码:
def selectst(self):
try:
print "S E L E C T"
self.cursor.execute("SELECT d_id,d_link,d_name FROM `d_details`")
print self.cursor.fetchall() # or fetchone() for one record
except MySQLdb.Error as error:
print "---------------------"""
print(error)
#self.cnx.commit() there is no need of commit here since we are not changing the data of the table
注意事项:
def selectst(self):
try:
print "S E L E C T"
self.cursor.execute("SELECT d_id,d_link,d_name FROM `d_details`")
print self.cursor.fetchall() # or fetchone() for one record
except MySQLdb.Error as error:
print "---------------------"""
print(error)
#self.cnx.commit() there is no need of commit here since we are not changing the data of the table
- 因为
是一个类似list.sort()的内存操作,所以不会得到任何结果cursor.execute
- 可以通过迭代
或使用游标对象
fetch*()
打印self.cursor.fetchall()
@VigneshKalai-非常感谢您的帮助!