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 number of connections to be scaled as web site usage grows. It allows multiple Apache processes on multiple machines to ...
pip install oracledb 官方文档:https://python-oracledb.readthedocs.io/en/latest/user_guide/installation.html 2. oracledb使用 importoracledb config = {'user':'system','dsn':'127.0.0.1:1521/orcl','password':'123456'}withoracledb.connect(**config)asconnection:withconnection.cursor()ascursor: cu...
在使用pycharm对远程oracle数据库进行访问时(本地未安装oracle),会出现64-bit Oracle Client library cannot be loaded: "The specified module could not be found"的错误。 (1)首先要做的是按照网上有的下载对应版本的instantclient 下载地址:http://www.oracle.com/technetwork/database/database-technologies/ins...
#obtaining a connection and predefining a memory area for a BLOB dbconn = cx_Oracle.connect('usr', 'pswd', '127.0.0.1/XE') dbconn.autocommit = True cur = dbconn.cursor() cur.setinputsizes(blobdoc=cx_Oracle.BLOB) #executing INSERT statements saving BLOBs to the database for input in...
前情回顾前文介绍了如何使用 python-oracledb 连接 Oracle 23ai 数据库,并演示了如何使用独立连接方式。其中提到了支持两种连接池: DRCP 和 PRCP。本文将对...
import cx_Oracle userName="ygss" password="ygss" with cx_Oracle.connect(userName, password, "192.168.101.171/oggspdb",encoding="UTF-8") as connection: cursor = connection.cursor() cursor.execute("insert into test_python values (:1, :2)",(1,'python')) connection.commit() 然后执行该脚本...
python的with语法糖要慎用~~ | python的with语句大大简化了try/finally语句的写法,但是python程序员在使用with语句的时候,一定要搞清楚with语句究竟在背后帮你做了些什么事儿……图一,是《Fluent Python》一书对于with语句的解释,上面写的很清楚,with语句就是实现了上下文管理协议:with语句在开始运行时,会先调用上下文...
Oracle database connection error: ORA-01804: failure to initialize timezone information What is your version of Python? Is it 32-bit or 64-bit? Python 64 bit What is your cx_Oracle version? 7.1.3 Whatexactcommand caused the problem (e.g. what command did you try to install with)?
return connection def get_df(dsn_tns): try: c = connectToOracle(dsn_tns, config.username, config.password) df = pd.read_sql(config.stmt, con=c) return df except cx_Oracle.DatabaseError as ex: os._exit(1) c.close() if __name__ == "__main__": ...
except cx_Oracle.DatabaseError as e: print("Problem connecting to Oracle", e) finally: # Close connection cursor.close() con.close() 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20.