A〈ANY 表示小于最小值
B〉ANY 表示大于最大值
C〈ALL 表示小于最大值
D〉ALL 表示大于最小值
E以上说法都不正确
在PL/SQL中用以下哪个运算符或函数,可以将两个字符串连接起来()
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What recommendations does the SQL Access Advisor provide for optimizing SQL queries?() (Choose all that apply.)
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What recommendations does the SQL Access Advisor provide for optimizing SQL queries? ()(Choose all that apply.)
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In Oracle 11g, which recommendations does the SQL Access Advisor generate? ()(Choose all that apply.)
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对于一个名为v_arr的类型为PL/SQL表类型的变量,以下对它进行引用形式正确的是()
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Which of the following cannot be used as input to the SQL Tuning Advisor?() (Choose all that apply.)
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以下对于事务的叙述,比较全面的是()
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The user Alice wants to grant all users query privileges on her DEPT table. Which SQL statement accomplishes this? ()
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The user Alice wants to grant all users query privileges on her DEPT table. Which SQL statement accomplishes this?()
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