OBI case studies
OBI · Put your knowledge to work in context.
Oracle Business Intelligence (OBI) certification validates that a practitioner can work competently across the Oracle BI Enterprise Edition platform - from the BI Server repository that defines business models, through the presentation layer, to the analyses and dashboards that end users actually see. It suits BI developers, data modelers, report authors, and administrators who already touch the platform in their day-to-day work and want a structured, credential-backed confirmation of that skill, or who are moving into an OBI role from another BI tool. The OBI case studies are 5 cases and about 2,044 words.
1Stale Dashboard After ETL Refresh
A nightly ETL job loads the SALES fact table at 02:00 and finishes at 02:40. Users report that an executive dashboard opened at 08:00 still shows yesterday's totals until they press Refresh.
469 words, about 2 min2Star Schema Versus Snowflake in the Repository
A team is modeling a retail subject area with a SALES fact table and dimensions for PRODUCT, STORE, and TIME. PRODUCT has a normalized hierarchy: PRODUCT to CATEGORY to DEPARTMENT, each in its own physical table.
399 words, about 2 min3Row-Level Security Leaks Through an Aggregate
A company has a single SALES subject area. A session variable INITIALIZATION block sets USER REGION from a lookup table.
401 words, about 2 min4Slow Dashboard Caused by a High-Cardinality Column
An operations dashboard has three analyses. Two are fast, but the third, which groups order count by customer name and shows the top 20, takes 70 seconds.
419 words, about 2 min5Presentation Layer Redesign for Self-Service
A repository has grown to 300 presentation columns across 12 presentation tables, many named after physical columns such as F AMT 1 and DIM KEY. Users complain they cannot find measures and often pick the wrong column.
356 words, about 2 min