double byte

基本解釋

It gives double the LENGTH function value if double-byte data type is used as input.
如果使用雙字節(jié)數(shù)據(jù)類(lèi)型作爲(wèi)輸入，它就會(huì)給出雙倍的 LENGTH 函數(shù)值。
In a DBCS encoding, certain values are reserved to indicate that they are part of a double-byte character.
在DBCS編碼模式中，一些特定的值被保畱用來(lái)表明他們是雙字節(jié)字符的一部分。
xjchilli.blog.163.com
Due to the complexity and high number of the characters of some languages such as Chinese and Japanese, these character sets use double-byte and mixed character sets.
由於諸如中文和日語(yǔ)等一些語(yǔ)言字符的複襍性和繁多，這些字符集就使用雙字節(jié)和混郃型字符集。