In SAP HANA database, there are 3 types of schema −
User Defined Schema: These schemas are created by database users or administrators. All the schemas under Catalog tab except from System defined and SLT derived schemas are user defined schemas.
System Defined Schema: These are generated as result of using HANA related functions. These are of following types −
SLT Derived Schema: These schema are generated as part of SLT Data replication in HANA.