解决ORACLE的ORA-3113报错，即连接被关闭的问题，一个有效方法是引入连接池机制。在数据库操作频繁的应用场景中，连接数据库的开销是不可忽视的。通过使用连接池，可以有效减少这一开销，提升程序执行效率。使用cx_Oracle库实现连接池，示例如下：先通过`cx_Oracle.SessionPool`创建连接池对象，设置连接池的...
import cx_Oracle from cx_Oracle import DatabaseError from multiprocessing import Pool # 设置连接池参数 pool_min = 2 pool_max = 10 pool_inc = 2 pool_gmd = cx_Oracle.SPOOL_ATTRVAL_WAIT pool_conn = cx_Oracle.connect('用户名','密码','数据库地址:端口号/数据库实例名') # 创建连接池 poo...
10 @@ class OracleDialect_cx_oracle(OracleDialect): # ORA-03135: connection lost contact # ORA-01033: ORACLE initialization or shutdown in progress # ORA-02396: exceeded maximum idle time, please connect again + # DPI-1080: connection was closed by ORA-3113 + # DPI-1010: not connected ...
In Oracle Database's traditional dedicated connection model, each process creates and destroys database servers when connections are opened and closed. Applications with idle dedicated connections will hold onto database resources, such as the server process, memory storage, etc. DRCP HELPS GOL TICK...
12537, 00000, “TNS:connection closed” “End of file” condition has been reached; partner has disconnected. This error could be due to a multiple of reasons. Reason 1 In a RAC environment for a database which was migrated to a RAC instance, the REMOTE_LISTENER is incorrectly set. ...
So I tried closing and reopening the cursor in the every loop by making chunk size to 50000. It sometimes go through one loop and fails with the below. Thanks for your reply! Looks like executemany statment itself was not able to insert 50k records at once in my network. But I do not...