GCCインストール

https://jmeubank.github.io/tdm-gcc/

tdm64-gcc-10.3.0-2.exe

godror本体

https://pkg.go.dev/github.com/godror/godror@v0.36.0

go get github.com/godror/godror

接続方法

https://godror.github.io/godror/doc/contents.html

https://qiita.com/500InternalServerError/items/84b7ea3310dfc385a4ec