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如何在 Oracle 中执行,即:
选择 ename,hiredate from emp wherehiredate > 20 CENTURY
我不知道该怎么做:/
Oracle 中的日期表示最容易使用 ANSI 语法,例如:
where my_date >= date '2012-01-01'
现在你所要做的就是在 20 世纪开始时锻炼。