You can uninstall HANA Express by using the SAP HANA database lifecycle manager (HDBLCM) command-line interface. To do this change directory to /hana/shared/HXE/hdblcm in a terminal. Change HXE to your SID. Once in the directory, execute the following command.
[email protected]# ./hdblcm A list of options will be presented. Type the index for uninstall, then press enter. You will then be shown a list of components to uninstall. You can type a comma-separated list of indexes or simply select the index to uninstall everything. Finally review the actions to be taken and select y to finalize the configuration.