Oracle9i Sample Schemas: Build Order and Prerequisites This diagram illustrates the build order and prerequisites for the Sample Schemas. Prior to building the Sample Schemas, your environment must include Spatial, JVM, Intermedia, and OLAP. When building the Sample Schemas, build the Human Resources (HR) schema first. Then build the Order Entry (OE), Product Media (PM), Queued Shipping (QS0) and Sales History (SH) schemas, in that order. For more details, refer to Chapter 1, "Installation".