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  1. Preface
  2. Introduction to Oracle Connector
  3. Connections for Oracle
  4. Synchronization tasks with Oracle Connector
  5. Mappings and mapping tasks with Oracle Connector
  6. Replication tasks
  7. Troubleshooting
  8. Appendix A: Data type reference

Oracle Connector

Oracle Connector

Rules and guidelines for SQL ELT optimization

Rules and guidelines for SQL ELT optimization

Consider the following rules and guidelines when you configure
SQL ELT optimization
for an Oracle mapping:
  • When you push transformation logic to the database, ensure that the database has enough resources to process the queries faster. Otherwise, there could be a performance degradation.
  • You can't use
    Generate SQL Query
    in the
    SQL ELT Query
    panel to generate and preview the SQL queries that
    Data Integration
    pushes to the database.
  • When you use multiple objects as the source type in a mapping, the mapping might fail with the following error:
    FnName: Execute Direct -- [28][ODBC Oracle Wire Protocol driver][Oracle]ORA-00904: "<schema_name>.<table_name>.<column_name>": invalid identifier]
    Workaround: You can configure a join relationship in a Joiner transformation with multiple source instances in the mapping.

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