con.close() 确保缩进正确! 使用冒号“:”表示代码块。第一个 print 和 if 位于同一个缩进级别,因为它们两个都在循环中。 在命令行终端重新运行该脚本: python connect.py 该循环依次输出和测试该列表中的每个值。使用数据库驻留连接池数据库驻留连接池是 Oracle Database 11g 的一个新特性。它对 Web
To connect Python to Oracle, you’ll need details, including the host (IP address or hostname) and port (often 1521). You’ll need the service name or SID to identify the database instance. These details can be found in the database’s setup files or provided by the administrator. Dir...
cx_Oracle.DatabaseError: DPI-1047: Cannot locate a 64-bit Oracle Client library: "C:\oracle\product\10.2.0\client_2\bin\oci.dll is not the correct architecture". See https://cx-oracle.readthedocs.io/en/latest/user_guide/installation.html for help oracle 客户端安装: 1.修改 Oracle客户端\...
方法1: pip安装:python -m pip install cx_Oracle --upgrade 如果是python2,你需要下7.3版本的 方法2:下载其它版本 pypi.org/project/cx-Ora 要选择对应python版本的包下载 pip install xxx.whl 2.2 Oracle Instant Client Free tools and libraries for connecting to Oracle Database 虽然oracle官网有如下介绍:...
"""def__init__(self):# '用户名','密码','监听地址/数据库名'# 与数据库连接,生成数据库对象self.oracle_connection = cx_Oracle.connect( config.get("oracle","username"), config.get("oracle","password"), config.get("oracle","host/port/database") ...
注意2:python2.7、python3.6 都是64位,cx_Oracle 也是按照 python3.6 版本兼容下载的,为啥就是报错:DatabaseError: DPI-1047: 64-bit Oracle Client library cannot be loaded: 1)下载linux版64位的instanclient,我下载的是instanclient11-2:连接: 2)在下载界面找到oracle对应的版本,复制连接 ...
python connect.py The loop prints and tests each value from the list in turn. Using Database Resident Connection Pooling Database Resident Connection Pooling is a new feature of Oracle Database 11g. It is useful for short lived scripts such as typically used by web applications. It allows the...
cx_Oracle.DatabaseError: ORA-12514: TNS:listener does not currently know of service requested in connect descriptor 这里应该填service name服务名。 下面这个是用工具连接的时候填的服务名,这里与这个名字保持一致。 注意: 我并没有添加环境变量,只按照上面5步即成功。
connection=cx_Oracle.connect(username, userpwd, dsn) sql="select * from *** where rownum<5" data = pd.read_sql(sql,connection) ##直接将读取的sql数据转换成数据框,有助于下一步的可视化和统计建模 data.head(n=2) 1. 2. 3. 4. 5...
一、安装cx_Oracle 外网环境直接 pip install cx_Oracle 内网环境 去[官网]上下载wheel文件,导入内网环境后install import cx_Oracle conn = cx_Oracle.connect(rkcx_zhanghao/rkcx_mima@10.64.54.93:31521/rkqry) 直接运行会报错 cx_Oracle.DatabaseError: DPI-1047: Cannot locate a 64-bit Oracle Client li...