Create Table Objects Idea create the DB tables that will be used as ODS and DWH Level Basic Project Star Schema Integration Job Reading Order 3/7 Project Date @August 10, 2022 Job 1 : ODSCreateTables Purpose Job overview Components Connect ODS Create ODS Account Create ODS Entity Create ODS Ledger Create ODS MetadataLog Job 2 : DWHCreateTables Purpose Requirements Job overview Components Connect DWH Create DWH Account Alter Account auto increment Create DWH Entity Alter Entity auto increment Create DWH Ledger Create DWH MetadataLog Create DWH LedgerReject Job 1 : ODSCreateTables Create Table Objects 1 Purpose The objective of this job is to create the table objects in MySQL that will be used to store the raw information extracted from the source systems. Those tables are created under the ODS schema. This job is supposed to be executed on ad-hoc basis and is not part of the ETL routine. Job overview Components Connect ODS Create Table Objects 2 Create ODS Account Create ODS Entity Create ODS Ledger Create ODS MetadataLog Create Table Objects 3 Job 2 : DWHCreateTables Purpose The objective of this job is to create the table objects in MySQL that will be used to store the transformed information ready for reporting. Those tables are created under the DWH schema. This job is supposed to be executed on ad-hoc basis and is not part of the ETL routine. Requirements The table schemas for the DWH are slightly more advanced than the ODS schemas as they work under the Slowly Changing Dimension principle (SCD). More specifically, dimension tables for Account and Entity require a SQL a surrogate key column [SK] having the SQL AUTO_INCREMENT condition. Job overview Create Table Objects 4 Components Connect DWH Create DWH Account Alter Account auto increment Create Table Objects 5 "ALTER TABLE " + context.SQLTableNameDWHAccount + " MODIFY COLUMN SK INT AUTO_INCREMENT" Create DWH Entity Alter Entity auto increment "ALTER TABLE " + context.SQLTableNameDWHEntity + " MODIFY COLUMN SK INT AUTO_INCREMENT" Create DWH Ledger Create Table Objects 6 Create DWH MetadataLog Create DWH LedgerReject Create Table Objects 7
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