char value meaning in English
炭化值
炭渣值
烟灰值(表示灯用煤油燃烧特性)
Examples
- Sets the value of the specified column to the passed - in char value
将指定的列的值设置为传入的char值。 - For example , one can define a substring udf , which can accept a char value as parameter , cast it into a graphic value , call the substr function for the graphic value , and cast the graphic result back to a char value
例如,可以定义一个substring udf ,它接受一个char值作为参数,将它转换为graphic值,再对这个graphic值调用substr函数,最后将graphic结果转换回char值。