However, if the column is a character data type and contains only numeric characters, you can indicate this by setting the NUMERIC_STRING option to 'y.'

然而，如果列是字符数据类型，并且只包含数字字符，那么可以通过将NUMERIC_STRING选项设置为“Y”来表明这一点。

youdao

For code that works with simple numeric or character data in tight loops, Pyrex can produce significant speedups, maybe 50 times the speed in best cases.

对于在循环中使用简单的数字或字符数据的代码来说，Pyrex的加速效果非常明显，在最佳情况中，可能会是50倍。

youdao

Numeric used only character type codes when specifying data types (but initializers in Numarray can still accept the old character codes).

Numeric在指定数据类型时只使用字符类型编码(但是Numarray中的初始化软件仍然接受老的字符编码)。

youdao