Oracle
1Z0-882 · Question #83
1Z0-882 Question #83: Real Exam Question with Answer & Explanation
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Question
An application packs several fields of information into the details column of the table sensors. The first six characters of that data represent a location code. Example: "ABCDEFOO -ooozzz comments will be here FIELDS----FIELD64" Given the query pattern: SELECT...FROM sensors WHERE details LIKE `ABCDEF%' Which three ALTER TABLE commands enable the optimizer to user an index for this WHERE patterns?
Options
- AALTER TABLE sensors ADD KEY (details ) USING BTREE
- BALTER TABLE sensors ADD KEY (details) USING HASH
- CALTER TABLE sensors ADD KEY (details(8)) USING BTREE
- DALTER TABLE sensors ADD KEY (details(8))USING HASH
- EALTER TABLE sensors ADD FULLTEX (details)
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