Oracle
1Z0-064 · Question #76
1Z0-064 Question #76: Real Exam Question with Answer & Explanation
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Question
Which three statements are true about the interpretation of an execution plan? (Choose three.)
Options
- AThe cost of the entire plan is indicated by the line with Id 0 and always includes both I/O and CPU
- BThe ROWS column indicates the cardinality of each operation and is always calculated by
- CA TABLE ACCESS FULL in the Operation column for a query with a WHERE clause occurs only
- DAn INDEX UNIQUE SCAN in the Operation column always implies that only one row will be
- EA HASH JOIN in the Operation column always implies that two tables are joined by using an
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