如何启动 oracle 监听器？检查监听器状态：使用命令 lsnrctl status。启动监听器：使用命令 lsnrctl start。验证监听器状态：再次使用命令 lsnrctl status。
如何启动 Oracle 监听器？
启动步骤：
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检查监听器状态：使用命令 lsnrctl status 检查监听器状态。如果监听器未运行，将显示以下错误消息：
LSNRCTL for Linux: Version 12.2.0.1.0 - Production on 29-JAN-2023 10:21:07 Copyright (c) 1991, 2017, Oracle. All rights reserved. Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=localhost)(PORT=1521))) TNS-12541: TNS:no listener -
启动监听器：使用命令 lsnrctl start 启动监听器。如果命令成功执行，将显示以下输出：
LSNRCTL for Linux: Version 12.2.0.1.0 - Production on 29-JAN-2023 10:21:07 Copyright (c) 1991, 2017, Oracle. All rights reserved. Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=localhost)(PORT=1521))) Starting /home/<a style="color:#f60; text-decoration:underline;" href="https://www.php.cn/zt/15715.html" target="_blank">oracle</a>/app/oracle/product/12.2.0/dbhome_1/network/admin/listener.ora -
验证监听器状态：再次使用命令 lsnrctl status 验证监听器是否已成功启动。输出将显示监听器正在运行：
LSNRCTL for Linux: Version 12.2.0.1.0 - Production on 29-JAN-2023 10:21:07 Copyright (c) 1991, 2017, Oracle. All rights reserved. Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=localhost)(PORT=1521))) Status of the LISTENER ------------------------ Alias LISTENER Version 12.2.0.1.0 Start Date 29-JAN-2023 10:21:07 Uptime 0 days 0 hr. 0 min. 0 sec Trace Level off Security ON: Local OS Authentication SNMP OFF Default Service orcl Listener Parameter File /home/oracle/app/oracle/product/12.2.0/dbhome_1/network/admin/listener.ora Listener Log File /home/oracle/app/oracle/product/12.2.0/dbhome_1/network/log/listener.log Listening Endpoints Summary... (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=localhost)(PORT=1521)))
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