in shardingsphere-ui-backend/src/main/java/org/apache/shardingsphere/ui/servcie/impl/ShardingSchemaServiceImpl.java [88:96]
public void deleteSchemaConfiguration(final String schemaName) {
RegistryCenterRepository registryRepository = registryCenterService.getActivatedRegistryCenter();
String schemaNamePath = SchemaMetadataNode.getSchemaNamePath(schemaName);
registryRepository.delete(schemaNamePath);
String schemaNames = registryCenterService.getActivatedRegistryCenter().get(SchemaMetadataNode.getMetadataNodePath());
List<String> schemaNameList = new ArrayList<>(Splitter.on(",").splitToList(schemaNames));
schemaNameList.remove(schemaName);
registryRepository.persist(SchemaMetadataNode.getMetadataNodePath(), Joiner.on(",").join(schemaNameList));
}