Exit 1Z0-117 Oracle Database 11g Release 2: SQL Tuning Exam
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Q1 Multiple choice

Examine the exhibit to view the query and its execution plan.

Identify the two correct interpretations that can be made from the execution plan.

Select all that apply.

  • A

    The DEPT table is driving table and the EMP table join is the driven table.

  • B

    Rows from the DEPT table are first hashed by the join key into memory and then joined to the EMP table on the join key.

  • C

    The EMP table is the driving table and the DEPT table us the driven table.

  • D

    The rows from the DEPT table are sorted first by the join key and then hashed into memory.

  • E

    Rows from both the tables are sorted by the join key, but only rows from the DEPT table are hashed into memory.

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