ODI, the Oracle Data Integrator, is a Graphical Extract, Load and Transform (ELT) tool for the integration of remote data sources into warehouses, for use in business intelligent systems. The challenge is that Microsoft Excel data is only immediately accessible via ODBC connectivity (and that only on Windows), while many tools only support JDBC for SQL RDBMS data access (and may run on many operating systems). There is often a need to read data from Excel spreadsheets for integration with different target technologies in Data Integration projects.
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