【Oracle ERP Note 】Database connection could not be established. Either the database is down or the APPS credentials supplied are wrong

現象:

當已連線至Oracle ERP 時，系統突然無法運作，同時其他人也無法登入。試著將 AP shutdow，之後重新啟動時，系統出現下列錯誤。


adstrtal.sh: Database connection could not be established. Either the database is down or the APPS credentials supplied are wrong.

USAGE:  adstrtal.sh 
        adstrtal.sh  -secureapps
        adstrtal.sh -nodbchk


adstrtal.sh: exiting with status 1


試著將 DB shutdown，甚至 server 重開，仍然無法運作。

解決: 

清除 server 的硬碟空間，，再重新啟動即可。