PLSQL Developer 提示欄位名，回車後卡頓解決

在PL/SQL Dev中依次開啟：

Configure->Preferences->User Interface->Code Assistant->Coding Style

Use original case if possible.

When this option is enabled, the Code Assistant will determine the case of the identifier from the source that is stored in the Oracle Dictionary if possible. This applies to all program units and their elements (parameters, types, and so on) and to view columns, and overrides the Coding Style preference described above. If the original case cannot be determined, the Coding Style will be applied.

You may want to disable this feature for performance reasons.