我如何在MYSQL写道:
www.un.org/Depts/DGACM/index_french.htm 页: 1
基本上下调(价值,2)是头几封信的三倍。 但我需要搁置最后几封信。 由于我不知道价值的时间长度,我可以使用亚体(价值,4,3)。
Here s another example:
SELECT * FROM table WHERE SUBSTRING(value - (4 TRAILING CHARACTER)) in (SELECT SUBSTRING(value - (1 TRAILING CHARACTER)) FROM table);
例如,将最后2个特性从<代码> > 数值中删除:
substring(value, 1, length(value) - 2)
I noticed that there were some threads with similar questions, and I did look through them but did not really get a convincing answer. Here s my question: The subquery below returns a Table with 3 ...
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