问题

Oracle9i extends the&#8194

Oracle9i extends the cursor sharing functionality with the new value of SIMILAR for the CURSOR_SHARING parameter. With CURSOR_SHARING = SIMILAR， cursors are shared for safe literals only. What is meant by ‘safe literals only’？（）

ANo literal value is substituted for a shared cursor.
BDifferent execution plans are generated for substituted literal values.
CThe substitution of a literal value will produce different execution plans.
DThe substitution of any literal value will produce exactly the same execution plan.

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分类：1Z0-032题库

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