Using DSL & REST APIs, datasources (such as relational, file-delimited, excel) can be created, deleted and updated. Relational datasource and its properties can be read from system tables under /services/databases/system/model. The various functions performed on the datasources can be specified using the DSL-based specific keywords or by using the Native properties syntax. Native properties syntax accepts property name value pairs in which attribute name and value can be specified. Attribute definitions of a datasource may be obtained from the system table: /services/databases/system/model/SYS_DATASOURCE_ATTRIBUTE_DEFS.

Refer to System Tables for a detailed description of the system tables that stores the information about different data sources.

The following data sources are discussed in this section: