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Lab Work II

DW in MS SQL Server

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How to build DW?

Imported

(External / Internal)

Cleansedand

Organized

Load datamarts

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Why do we need import?(Sometimes called by extract)

Heterogen format (csv, xls, txt, mdb, dll)

Heterogen DBMS (access, mysql, oracle, dll)

Heterogen fokus (HR, Finance, Production, dll) Heterogen lokasi fisik

Heterogen asal data (OLTP, proses agregat,

bank BI, CRM tool, ERP tool, dll) dll.

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Why do we need cleansed/organized?(Sometimes called by transform)

Heterogen currency - membutuhkan proses

transform menjadi mata uang yang sejenis

Heterogen satuan - membutuhkan prosestransform menjadi satuan yang sejenis

Membutuhkan fungsi aggregat - sum, average,

count, percentage, ranging, dll

Heterogen penamaan field atau table - script

untuk update lastName menjadi lname

dll

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Why do we need load?

Untuk mengisi data warehouse

Untuk mengisi data warehouse

Membuat cube

Membuat cube

Membuat pivot

Membuat pivot

Menemukan masalah

Menemukan masalah

Solve masalah

Solve masalah

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Proses DW

DW

OLTP

CSV

Selecttable

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Proses ETL

Video part 1 (38:06)

DSS & BI (Turban : 224)

Denormalisasi

(join all tables)

Data Warehouse

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Data Cube

Dimensions (point of view)

Measures (money, sales volume, inventory)

Time (daily, weekly, monthly,)

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Lets build a cube

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Cube Schema

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DW Concepts

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DW Concepts

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DW Concepts

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Browse Data

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Data Visualisasi

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Dashboard - Pivot

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End