How to get explain plan and predicate information while running the SQL Statement

SQL> set autotrace traceonly explain
SQL> select sysdate from dual ;

Execution Plan
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Plan hash value: 1388734953

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| Id | Operation | Name | Rows | Cost (%CPU)| Time |
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| 0 | SELECT STATEMENT | | 1 | 2 (0)| 00:00:01 |
| 1 | FAST DUAL | | 1 | 2 (0)| 00:00:01 |
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SQL>