SQL CommandsDDL CommandsOn this pageDDL (Data Definition Language) CommandsThese topics provide reference information for the DDL (Data Definition Language) commands in Databend.Database and Table ManagementDatabase TableViewDatabase Performance and IndexingCluster KeyAggregating IndexUser, Role, and Security ManagementUserNetwork PolicyMask PolicyData Staging and ProcessingStageStreamConnectionFile FormatFunction and External IntegrationUDF (User Defined Function)External Function