This is possible with OEM Cloud Control. To view the data, go to the database home page / summary. In the top menu, go to
Schema -> Database Objects -> Tables.

Fill out the desired scheme and click "Go." This will populate the list of tables in the schema. Click on the table name to view the table.
Once on the "View Table" page, select "View Data" in the "Actions" menu and click "Go." This will return 25 rows from the selected table. If there are more than 2,000 rows, you will be asked to select specific columns and add a where clause.
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