關於GI和DATABASE軟體版本高低的問題

Cause - The active version of Oracle Grid Infrastructure detected on the system (12.1.0.2.0), is lower than the version of Oracle Real Application Database software that you were attempting to install(12.2.0.1.0).This is not supported.  Action - If Oracle Grid Infrastructure is of older version, only Oracle Single Instance Database software can be installed. If you want to install Oracle Real Application Database software,you should upgrade Oracle Grid Infrastructure to same or higher version first.
根據以上資訊，GI版本不能低於DATABASE的版本，換句話說，高版本的GI可以安裝低版本的database