Data Services - Updating The Data Warehouse. The Subject Of The Order Is The Updating Of The Data Warehouse, Which Includes: • Preparation Of Changes And Additions To The Data Model Of The Data Warehouse. • Creation Of Business Rules For Data Filling (Mapping) From Registers To The Data Warehouse. • Analysis Of Data In Source Information Systems For The Needs Of Adding New Content To The Data Warehouse. • Planning Etl Procedures, Their Creation And, If Necessary, Also Optimization (Demanding Programming In The Pl/Sql Programming Language). • Optimization Of Etl Processes. • Checking The Consistency Of The Data In The Warehouse With The Data In The Registers. • Analysis And Elimination Of The Causes Of Discrepancies Between Expected Results (E.G. From Registers) And Results From The Data Warehouse. • Additions To The Existing Technical Products Of The System For Etl.
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