Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!
- Is it possible to export contacts in WeChat. If so, how? I think you can save contact to your phone
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How …
Questions on SQL
Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!
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比如在 LEFT JOIN 中过滤条件写在 ON 和 WHERE 的区别。
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Table-value function 和 scalar-valued function 的区别.
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char、varchar、nvarchar之间的区别(包括 …
Questions About Java
Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!
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is possible to define abstract static method? i.e., the method doesn't depend on any instance variables but subclasses have different implementations
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for a void method, we can also make it …