ORA-41106: invalid argument string: value is null
Cause: An attempt to read the scan hostname or port failed
Action: Verify pcw is running and scan is configured. Run grdcscan read_config to verify or grdcscan set_config host:port to set scan name and port.
ORA-41106表示参数字符串内参数值为空值。
(1) 检查参数字符串中的参数字段是否未设置为空;
(2) 将参数字段设置为一个有效的值;
(3) 重新运行以正确传入参数字符串;
(4) 如果还是无法解决,则应参考Oracle文档了解更多详情,排查并解决问题。