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The Data Source Explorer provides a tree view of all registered data sources and associated database objects. When you first start SQL Query TunerDB Optimizer, a prompt appears and offers to populate Data Source Explorer from multiple sources on the system. This includes previously-registered data sources on other IDERA products, and third-party DBMS clients such as TOAD. If SQL Query Tuner DB Optimizer cannot detect a data source, you can register it manually.

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The Profiling Repository entries in the Data Source Explorer are available only when configured in the Profile Configuration Dialog for Oracle data sources only. These are saved profiling sessions that you can share with other SQL Query Tuner DB Optimizer users. For information on configuring the data source profiles, see Building Profiling Configurations.profiling configurations.